[RISOLTO] LAG video su Ubuntu, utente alle prime armi

Zero. · 11 Aprile 2018

Ciao a tutti, vi spiego il mio problema.
Dopo aver assemblato il mio nuovo computer ho deciso di fare il passo e non comprare la licenza Windows per fare finalmente il salto nel mondo Linux.
Volevo chiedere se riuscite a darmi una mano perché non riesco a far girare il sistema operativo. Il problema è che va tutto a scatti, già sul desktop soltanto muovendo il mouse e selezionando una cartella. Firefox scatta semplicemente scrollando la pagina e i video su youtube sono inguardabili per la lentezza.
Segnalo anche che la ventola della cpu gira sempre al massimo nonostante il processore sia a 45° (temperatura rilevata da Bios).
Ho già aggiornato il Bios della scheda madre all’ultima versione, ho provato Ubuntu Mate 17.10, Fedora Cinnamon 27 e Linux MInt 18.3.
Ora sono tornato a Ubuntu Mate

La mia configurazione è:
CPU: Intel i3-8100 65W TDP

SSD: SAMSUNG 960 EVO NVMe M.2

Ram: CRUCIAL Sport DDR4 2400 8GB

MB: ASRock Z370M-ITX

PSU: Corsair RM550x

Monitor: Eizo ev2455 1920x1200

Essendo la scheda video integrata penso che il problema siano i driver del processore
Se può essere utile allego anche l’output del commando sudo lshw:

Codice:

Code: Select all

   description: Desktop Computer
    product: To Be Filled By O.E.M. (To Be Filled By O.E.M.)
    vendor: To Be Filled By O.E.M.
    version: To Be Filled By O.E.M.
    serial: To Be Filled By O.E.M.
    width: 64 bits
    capabilities: smbios-3.0 dmi-3.0 vsyscall32
    configuration: boot=normal chassis=desktop family=To Be Filled By O.E.M. sku=To Be Filled By O.E.M. uuid=7085C266-F34A-0000-0000-000000000000
  *-core
       description: Motherboard
       product: Z370M-ITX/ac
       vendor: ASRock
       physical id: 0
       serial: M80-AB002000647
     *-firmware
          description: BIOS
          vendor: American Megatrends Inc.
          physical id: 0
          version: P2.10
          date: 03/21/2018
          size: 64KiB
          capacity: 15MiB
          capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification uefi
     *-memory
          description: System Memory
          physical id: a
          slot: System board or motherboard
          size: 8GiB
        *-bank:0
             description: DIMM [empty]
             physical id: 0
             slot: ChannelA-DIMM0
        *-bank:1
             description: DIMM Synchronous 2400 MHz (0,4 ns)
             product: BLS8G4D240FSB.16FBD
             vendor: 859B
             physical id: 1
             serial: EABA76EF
             slot: ChannelB-DIMM0
             size: 8GiB
             width: 64 bits
             clock: 2400MHz (0.4ns)
     *-cache:0
          description: L1 cache
          physical id: e
          slot: L1 Cache
          size: 256KiB
          capacity: 256KiB
          capabilities: synchronous internal write-back unified
          configuration: level=1
     *-cache:1
          description: L2 cache
          physical id: f
          slot: L2 Cache
          size: 1MiB
          capacity: 1MiB
          capabilities: synchronous internal write-back unified
          configuration: level=2
     *-cache:2
          description: L3 cache
          physical id: 10
          slot: L3 Cache
          size: 6MiB
          capacity: 6MiB
          capabilities: synchronous internal write-back unified
          configuration: level=3
     *-cpu
          description: CPU
          product: Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz
          vendor: Intel Corp.
          physical id: 11
          bus info: cpu@0
          version: Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz
          serial: To Be Filled By O.E.M.
          slot: CPUSocket
          size: 3600MHz
          capacity: 4005MHz
          width: 64 bits
          clock: 100MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 xsaves dtherm arat pln pts hwp hwp_notify hwp_act_window hwp_epp cpufreq
          configuration: cores=4 enabledcores=4 threads=4
     *-pci
          description: Host bridge
          product: Intel Corporation
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 08
          width: 32 bits
          clock: 33MHz
        *-display UNCLAIMED
             description: VGA compatible controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pciexpress msi pm vga_controller bus_master cap_list
             configuration: latency=0
             resources: memory:de000000-deffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff
        *-usb
             description: USB controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi xhci bus_master cap_list
             configuration: driver=xhci_hcd latency=0
             resources: irq:122 memory:df330000-df33ffff
           *-usbhost:0
                product: xHCI Host Controller
                vendor: Linux 4.10.0-38-generic xhci-hcd
                physical id: 0
                bus info: usb@1
                logical name: usb1
                version: 4.10
                capabilities: usb-2.00
                configuration: driver=hub slots=16 speed=480Mbit/s
              *-usb:0
                   description: Mouse
                   product: USB-PS/2 Optical Mouse
                   vendor: B16_b_02
                   physical id: 3
                   bus info: usb@1:3
                   version: 98.02
                   capabilities: usb-2.00
                   configuration: driver=usbhid maxpower=98mA speed=1Mbit/s
              *-usb:1
                   description: Keyboard
                   product: Dell USB Entry Keyboard
                   vendor: Dell
                   physical id: 4
                   bus info: usb@1:4
                   version: 1.78
                   capabilities: usb-1.10
                   configuration: driver=usbhid maxpower=100mA speed=1Mbit/s
              *-usb:2
                   description: Bluetooth wireless interface
                   vendor: Intel Corp.
                   physical id: d
                   bus info: usb@1:d
                   version: 0.01
                   capabilities: bluetooth usb-2.00
                   configuration: driver=btusb maxpower=100mA speed=12Mbit/s
           *-usbhost:1
                product: xHCI Host Controller
                vendor: Linux 4.10.0-38-generic xhci-hcd
                physical id: 1
                bus info: usb@2
                logical name: usb2
                version: 4.10
                capabilities: usb-3.00
                configuration: driver=hub slots=10 speed=5000Mbit/s
        *-generic UNCLAIMED
             description: Signal processing controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 14.2
             bus info: pci@0000:00:14.2
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: latency=0
             resources: memory:df34e000-df34efff
        *-communication
             description: Communication controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=mei_me latency=0
             resources: irq:134 memory:df34d000-df34dfff
        *-storage
             description: SATA controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 17
             bus info: pci@0000:00:17.0
             version: 00
             width: 32 bits
             clock: 66MHz
             capabilities: storage msi pm ahci_1.0 bus_master cap_list
             configuration: driver=ahci latency=0
             resources: irq:123 memory:df348000-df349fff memory:df34c000-df34c0ff ioport:f090(size=8) ioport:f080(size=4) ioport:f060(size=32) memory:df34b000-df34b7ff
        *-pci:0
             description: PCI bridge
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci@0000:00:1c.0
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16
        *-pci:1
             description: PCI bridge
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1c.5
             bus info: pci@0000:00:1c.5
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:17 ioport:e000(size=4096) memory:df200000-df2fffff
           *-network
                description: Ethernet interface
                product: I211 Gigabit Network Connection
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:02:00.0
                logical name: enp2s0
                version: 03
                serial: 70:85:c2:66:f3:4c
                capacity: 1Gbit/s
                width: 32 bits
                clock: 33MHz
                capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.4.0-k firmware=0. 4-1 latency=0 link=no multicast=yes port=twisted pair
                resources: irq:17 memory:df200000-df21ffff ioport:e000(size=32) memory:df220000-df223fff
        *-pci:2
             description: PCI bridge
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1c.6
             bus info: pci@0000:00:1c.6
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:18 memory:df100000-df1fffff
           *-network
                description: Wireless interface
                product: Intel Corporation
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:03:00.0
                logical name: wlp3s0
                version: 10
                serial: d4:25:8b:05:30:66
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=4.10.0-38-generic firmware=22.391740.0 ip=192.168.0.3 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                resources: irq:135 memory:df100000-df101fff
        *-pci:3
             description: PCI bridge
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16 memory:df000000-df0fffff
           *-storage
                description: Non-Volatile memory controller
                product: Samsung Electronics Co Ltd
                vendor: Samsung Electronics Co Ltd
                physical id: 0
                bus info: pci@0000:04:00.0
                version: 00
                width: 64 bits
                clock: 33MHz
                capabilities: storage pm msi pciexpress msix nvm_express bus_master cap_list
                configuration: driver=nvme latency=0
                resources: irq:16 memory:df000000-df003fff
        *-isa
             description: ISA bridge
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 00
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master
             configuration: latency=0
        *-memory UNCLAIMED
             description: Memory controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 00
             width: 32 bits
             clock: 33MHz (30.3ns)
             capabilities: bus_master
             configuration: latency=0
             resources: memory:df344000-df347fff
        *-multimedia
             description: Audio device
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=snd_hda_intel latency=32
             resources: irq:136 memory:df340000-df343fff memory:df320000-df32ffff
        *-serial UNCLAIMED
             description: SMBus
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1f.4
             bus info: pci@0000:00:1f.4
             version: 00
             width: 64 bits
             clock: 33MHz
             configuration: latency=0
             resources: memory:df34a000-df34a0ff ioport:f040(size=32)
        *-network
             description: Ethernet interface
             product: Ethernet Connection (2) I219-V
             vendor: Intel Corporation
             physical id: 1f.6
             bus info: pci@0000:00:1f.6
             logical name: enp0s31f6
             version: 00
             serial: 70:85:c2:66:f3:4a
             capacity: 1Gbit/s
             width: 32 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
             configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.2-4 latency=0 link=no multicast=yes port=twisted pair
             resources: irq:133 memory:df300000-df31ffff

Zero. · 11 Aprile 2018

Ho risolto seguendo questa guida:
https://askubuntu.com/questions/989946/ ... le_rich_qa

1. Do sudo vi /etc/default/grub or use any other editor.

2. Find GRUB_CMDLINE_LINUX_DEFAULT line and add i915.alpha_support=1 to its value.
It'll look like GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.alpha_support=1"

3. sudo update-grub and reboot.

Ps. in realtà non so perchè non mi faceva modificare il file quindi una volta aperto (con il tasto destro come amministratore) l'ho modificato e salvato e poi ho eseguito l'ultimo comando.

Ma come spiegano qui non sembra la miglior soluzione:
https://www.phoronix.com/scan.php?page= ... hics&num=1

Ora funziona tutto bene a parte un piccolo lag video (quando scrollo velocemente una pagina appare una riga di discontinuità nell’immagine).

Mi sembra di aver capito che sto utilizzando dei driver provvisori c’è un modo migliore per risolvere o va bene così?

EmanueleC · 11 Aprile 2018

Zero. ha detto:
Ho risolto seguendo questa guida:
https://askubuntu.com/questions/989946/ ... le_rich_qa

1. Do sudo vi /etc/default/grub or use any other editor.

2. Find GRUB_CMDLINE_LINUX_DEFAULT line and add i915.alpha_support=1 to its value.
It'll look like GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.alpha_support=1"

3. sudo update-grub and reboot.

Ps. in realtà non so perchè non mi faceva modificare il file quindi una volta aperto (con il tasto destro come amministratore) l'ho modificato e salvato e poi ho eseguito l'ultimo comando.

Ma come spiegano qui non sembra la miglior soluzione:
https://www.phoronix.com/scan.php?page= ... hics&num=1

Ora funziona tutto bene a parte un piccolo lag video (quando scrollo velocemente una pagina appare una riga di discontinuità nell’immagine).

Mi sembra di aver capito che sto utilizzando dei driver provvisori c’è un modo migliore per risolvere o va bene così?

Se guardi, quella guida è per versioni di Ubuntu 16.04 (LTS) che è stata rilasciata nel 2016, e per Ubuntu 17.10, un anno fa, prova con la 18.04, anche se solo in LIVE, senza aggiungere opzioni su GRUB, tanto tra qualche mese l'upgrade alla 18.04 lo devi fare comunque, visto che la 17.10 è una versione a supporto breve, e la 18.04 è la prossima LTS con supporto di 5 anni.
Comunque, firefox con la nuova versione quantum, ho letto che in molti hanno un uso della CPU elevato, anche io in quel breve periodo che lo uso, lo noto, secondo me ancora ci vuole tempo per stabilizzarsi, meglio usare google chrome o chromium(la version open di chrome).
Con le tue caratteristiche puoi installare qualsiasi versione, eh: Kubuntu, Ubuntu, Ubuntu mate etc etc

EmanueleC · 11 Aprile 2018

Confermato:

I've read somewhere we won't need alpha_support in 18.04.

Ovviamente adesso la 18.04 è in beta, sarà rilasciato tra una settimana

Zero. · 13 Aprile 2018

Grazie della risposta! allora appena uscirà la versione 18.04 proverò a fare un'installazione pulita.

Zero. · 25 Maggio 2018

Sono passato a Ubuntu mate 18.04 LTS, lo scroll delle immagini è andato bene da subito senza scatti o rallentamenti. Purtroppo è rimasto invece lo stesso problema del lag grafico che avevo in Ubuntu 17.04 dopo aver seguito la guida e installato i driver provvisori (i915.alpha_support=1) che questa volta non ho installato.

Decrizione del problema:
Quando scrollo velocemente una pagina web con tante immagini o testo fitto, oppure guardando dei video con immagini in movimento veloce noto una sottile linea trasparente che sembra essere una discontinuità dell'immagine tra quello che c'è sopra e sotto la linea.

Prove:
Ho provato a fare degli screenshot dello schermo ma non appare mai.....
Allego una rappresentazione grafica che ho fatto per rendere l'idea, (nella reatà è trasparente).
Ho provato a collegare il monitor a un pc Windows e non accade, mentre in Ubuntu la vedo sia utilizzando Firefox che gurdando video con VLC.

Se può essre utile allego anche l'output del comando sudo lshw:

Codice:

    description: Desktop Computer
    product: To Be Filled By O.E.M. (To Be Filled By O.E.M.)
    vendor: To Be Filled By O.E.M.
    version: To Be Filled By O.E.M.
    serial: To Be Filled By O.E.M.
    width: 64 bits
    capabilities: smbios-3.0 dmi-3.0 smp vsyscall32
    configuration: boot=normal chassis=desktop family=To Be Filled By O.E.M. sku=To Be Filled By O.E.M. uuid=7085C266-F34A-0000-0000-000000000000
  *-core
       description: Motherboard
       product: Z370M-ITX/ac
       vendor: ASRock
       physical id: 0
       serial: M80-AB002000647
     *-firmware
          description: BIOS
          vendor: American Megatrends Inc.
          physical id: 0
          version: P2.10
          date: 03/21/2018
          size: 64KiB
          capacity: 15MiB
          capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification uefi
     *-memory
          description: System Memory
          physical id: a
          slot: System board or motherboard
          size: 8GiB
        *-bank:0
             description: DIMM [empty]
             physical id: 0
             slot: ChannelA-DIMM0
        *-bank:1
             description: DIMM DDR4 Synchronous Unbuffered (Unregistered) 2400 MHz (0,4 ns)
             product: BLS8G4D240FSB.16FBD
             vendor: 859B
             physical id: 1
             serial: EABA76EF
             slot: ChannelB-DIMM0
             size: 8GiB
             width: 64 bits
             clock: 2400MHz (0.4ns)
     *-cache:0
          description: L1 cache
          physical id: e
          slot: L1 Cache
          size: 256KiB
          capacity: 256KiB
          capabilities: synchronous internal write-back unified
          configuration: level=1
     *-cache:1
          description: L2 cache
          physical id: f
          slot: L2 Cache
          size: 1MiB
          capacity: 1MiB
          capabilities: synchronous internal write-back unified
          configuration: level=2
     *-cache:2
          description: L3 cache
          physical id: 10
          slot: L3 Cache
          size: 6MiB
          capacity: 6MiB
          capabilities: synchronous internal write-back unified
          configuration: level=3
     *-cpu
          description: CPU
          product: Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz
          vendor: Intel Corp.
          physical id: 11
          bus info: cpu@0
          version: Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz
          serial: To Be Filled By O.E.M.
          slot: CPUSocket
          size: 3595MHz
          capacity: 4005MHz
          width: 64 bits
          clock: 100MHz
          capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single pti tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves ibpb ibrs stibp dtherm arat pln pts hwp hwp_notify hwp_act_window hwp_epp cpufreq
          configuration: cores=4 enabledcores=4 threads=4
     *-pci
          description: Host bridge
          product: Intel Corporation
          vendor: Intel Corporation
          physical id: 100
          bus info: pci@0000:00:00.0
          version: 08
          width: 32 bits
          clock: 33MHz
        *-display
             description: VGA compatible controller
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 2
             bus info: pci@0000:00:02.0
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
             configuration: driver=i915 latency=0
             resources: irq:134 memory:de000000-deffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff
        *-usb
             description: USB controller
             product: 200 Series PCH USB 3.0 xHCI Controller
             vendor: Intel Corporation
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi xhci bus_master cap_list
             configuration: driver=xhci_hcd latency=0
             resources: irq:122 memory:df330000-df33ffff
           *-usbhost:0
                product: xHCI Host Controller
                vendor: Linux 4.15.0-22-generic xhci-hcd
                physical id: 0
                bus info: usb@1
                logical name: usb1
                version: 4.15
                capabilities: usb-2.00
                configuration: driver=hub slots=16 speed=480Mbit/s
              *-usb:0
                   description: Keyboard
                   product: Dell USB Entry Keyboard
                   vendor: Dell
                   physical id: 3
                   bus info: usb@1:3
                   version: 1.78
                   capabilities: usb-1.10
                   configuration: driver=usbhid maxpower=100mA speed=1Mbit/s
              *-usb:1
                   description: Keyboard
                   product: USB Receiver
                   vendor: Logitech
                   physical id: 4
                   bus info: usb@1:4
                   version: 12.03
                   capabilities: usb-2.00
                   configuration: driver=usbhid maxpower=98mA speed=12Mbit/s
              *-usb:2
                   description: Mass storage device
                   product: Cruzer Edge
                   vendor: SanDisk
                   physical id: a
                   bus info: usb@1:a
                   version: 1.26
                   serial: 20053247421D724115E7
                   capabilities: usb-2.00 scsi
                   configuration: driver=usb-storage maxpower=200mA speed=480Mbit/s
              *-usb:3
                   description: Bluetooth wireless interface
                   vendor: Intel Corp.
                   physical id: d
                   bus info: usb@1:d
                   version: 0.01
                   capabilities: bluetooth usb-2.00
                   configuration: driver=btusb maxpower=100mA speed=12Mbit/s
           *-usbhost:1
                product: xHCI Host Controller
                vendor: Linux 4.15.0-22-generic xhci-hcd
                physical id: 1
                bus info: usb@2
                logical name: usb2
                version: 4.15
                capabilities: usb-3.00
                configuration: driver=hub slots=10 speed=5000Mbit/s
        *-generic UNCLAIMED
             description: Signal processing controller
             product: 200 Series PCH Thermal Subsystem
             vendor: Intel Corporation
             physical id: 14.2
             bus info: pci@0000:00:14.2
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: latency=0
             resources: memory:df34e000-df34efff
        *-communication
             description: Communication controller
             product: 200 Series PCH CSME HECI #1
             vendor: Intel Corporation
             physical id: 16
             bus info: pci@0000:00:16.0
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=mei_me latency=0
             resources: irq:135 memory:df34d000-df34dfff
        *-storage
             description: RAID bus controller
             product: SATA Controller [RAID mode]
             vendor: Intel Corporation
             physical id: 17
             bus info: pci@0000:00:17.0
             version: 00
             width: 32 bits
             clock: 66MHz
             capabilities: storage msi pm bus_master cap_list
             configuration: driver=ahci latency=0
             resources: irq:123 memory:df348000-df349fff memory:df34c000-df34c0ff ioport:f090(size=8) ioport:f080(size=4) ioport:f060(size=32) memory:df34b000-df34b7ff
        *-pci:0
             description: PCI bridge
             product: 200 Series PCH PCI Express Root Port #1
             vendor: Intel Corporation
             physical id: 1c
             bus info: pci@0000:00:1c.0
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16
        *-pci:1
             description: PCI bridge
             product: 200 Series PCH PCI Express Root Port #6
             vendor: Intel Corporation
             physical id: 1c.5
             bus info: pci@0000:00:1c.5
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:17 ioport:e000(size=4096) memory:df200000-df2fffff
           *-network
                description: Ethernet interface
                product: I211 Gigabit Network Connection
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:02:00.0
                logical name: enp2s0
                version: 03
                serial: 70:85:c2:66:f3:4c
                capacity: 1Gbit/s
                width: 32 bits
                clock: 33MHz
                capabilities: pm msi msix pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
                configuration: autonegotiation=on broadcast=yes driver=igb driverversion=5.4.0-k firmware=0. 4-1 latency=0 link=no multicast=yes port=twisted pair
                resources: irq:17 memory:df200000-df21ffff ioport:e000(size=32) memory:df220000-df223fff
        *-pci:2
             description: PCI bridge
             product: 200 Series PCH PCI Express Root Port #7
             vendor: Intel Corporation
             physical id: 1c.6
             bus info: pci@0000:00:1c.6
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:18 memory:df100000-df1fffff
           *-network
                description: Wireless interface
                product: Intel Corporation
                vendor: Intel Corporation
                physical id: 0
                bus info: pci@0000:03:00.0
                logical name: wlp3s0
                version: 10
                serial: d4:25:8b:05:30:66
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                configuration: broadcast=yes driver=iwlwifi driverversion=4.15.0-22-generic firmware=29.610311.0 ip=192.168.0.5 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                resources: irq:136 memory:df100000-df101fff
        *-pci:3
             description: PCI bridge
             product: 200 Series PCH PCI Express Root Port #9
             vendor: Intel Corporation
             physical id: 1d
             bus info: pci@0000:00:1d.0
             version: f0
             width: 32 bits
             clock: 33MHz
             capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
             configuration: driver=pcieport
             resources: irq:16 memory:df000000-df0fffff
           *-storage
                description: Non-Volatile memory controller
                product: NVMe SSD Controller SM961/PM961
                vendor: Samsung Electronics Co Ltd
                physical id: 0
                bus info: pci@0000:04:00.0
                version: 00
                width: 64 bits
                clock: 33MHz
                capabilities: storage pm msi pciexpress msix nvm_express bus_master cap_list
                configuration: driver=nvme latency=0
                resources: irq:16 memory:df000000-df003fff
        *-isa
             description: ISA bridge
             product: Intel Corporation
             vendor: Intel Corporation
             physical id: 1f
             bus info: pci@0000:00:1f.0
             version: 00
             width: 32 bits
             clock: 33MHz
             capabilities: isa bus_master
             configuration: latency=0
        *-memory UNCLAIMED
             description: Memory controller
             product: 200 Series PCH PMC
             vendor: Intel Corporation
             physical id: 1f.2
             bus info: pci@0000:00:1f.2
             version: 00
             width: 32 bits
             clock: 33MHz (30.3ns)
             capabilities: bus_master
             configuration: latency=0
             resources: memory:df344000-df347fff
        *-multimedia
             description: Audio device
             product: 200 Series PCH HD Audio
             vendor: Intel Corporation
             physical id: 1f.3
             bus info: pci@0000:00:1f.3
             version: 00
             width: 64 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list
             configuration: driver=snd_hda_intel latency=32
             resources: irq:137 memory:df340000-df343fff memory:df320000-df32ffff
        *-serial UNCLAIMED
             description: SMBus
             product: 200 Series PCH SMBus Controller
             vendor: Intel Corporation
             physical id: 1f.4
             bus info: pci@0000:00:1f.4
             version: 00
             width: 64 bits
             clock: 33MHz
             configuration: latency=0
             resources: memory:df34a000-df34a0ff ioport:f040(size=32)
        *-network
             description: Ethernet interface
             product: Ethernet Connection (2) I219-V
             vendor: Intel Corporation
             physical id: 1f.6
             bus info: pci@0000:00:1f.6
             logical name: enp0s31f6
             version: 00
             serial: 70:85:c2:66:f3:4a
             capacity: 1Gbit/s
             width: 32 bits
             clock: 33MHz
             capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
             configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.2-4 latency=0 link=no multicast=yes port=twisted pair
             resources: irq:133 memory:df300000-df31ffff
     *-scsi
          physical id: 1
          bus info: usb@1:10
          logical name: scsi6
          capabilities: emulated scsi-host
          configuration: driver=usb-storage
        *-disk
             description: SCSI Disk
             product: Cruzer Edge
             vendor: SanDisk
             physical id: 0.0.0
             bus info: scsi@6:0.0.0
             logical name: /dev/sda
             version: 1.26
             serial: 20053247421D724115E7
             size: 14GiB (16GB)
             capabilities: removable
             configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512
           *-medium
                physical id: 0
                logical name: /dev/sda
                size: 14GiB (16GB)
                capabilities: partitioned partitioned:dos
                configuration: signature=0008fb3f
              *-volume
                   description: Windows FAT volume
                   vendor: SYSLINUX
                   physical id: 1
                   logical name: /dev/sda1
                   logical name: /media/luca/UBUNTU-MATE
                   version: FAT32
                   serial: 2a79-56e4
                   size: 14GiB
                   capacity: 14GiB
                   capabilities: primary bootable fat initialized
                   configuration: FATs=2 filesystem=fat label=UBUNTU-MATE mount.fstype=vfat mount.options=rw,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro state=mounted

Zero. · 30 Maggio 2018

Qualcuno ha delle ipotesi?
Strano che lo stesso identico problema lo riscontri su due versiooni di Ubuntu (la 17.04 la 18.04)

« MoMy » · 30 Maggio 2018

Per quanto riguarda Firefox e il consumo eccessivo di memoria, è sufficiente disabilitare il multiprocesso. Per il resto non ho capito, è una cosa tipo questa?

Zero. · 30 Maggio 2018

Esatto!!!
solo che ho una linea sola e a metà si spezza per poi continuare più in basso come ho rappresentato sopra.
In Firefox ho provato a disabilitare l'accelerazione hardware ma non è cambiato nulla....

« MoMy » · 30 Maggio 2018

Per Firefox, nella barra degli indirizzi scrivi about:support e dimmi cosa c'è scritto nella tabella Informazioni Base alla voce Finestre Multiprocesso.
Il problema si presenta solo con Firefox (o comunque con video on-line, streaming eccecc) oppure anche guardando chessò, un video con un player tipo vlc, in poche parole un film al computer?

Zero. · 31 Maggio 2018

Grazie per l'aiuto!

Codice:

 Finestre multiprocesso:    1/1 (Attivato automaticamente)

Purtroppo il lag video lo riscontro all'interno di Firefox scrollando velocemente pagine con tanto testo o immagini e in esecuzione di video streaming (es. Youtube).
In Ubuntu invece quando vedo un film ad esempio con VLC, non capita quando scrollo cartelle con tanti file dentro.

« MoMy » · 31 Maggio 2018

Prova così:
- Nella barra degli indirizzi digita: about:config (accetta quello che devi accettare);
- Nella barra di ricerca digita browser.tabs.remote.autostart e da invio;
- Cambia il valore del parametro da true a false cliccandoci sopra, riavvia Firefox.
Al riavvio se rientri in about:support nella tabella Informazioni Base alla voce Finestre Multiprocesso dovresti trovare scritto 0/1 disattivato e poi fai le prove del caso.
Non dico che questo risolva, ma se Firefox ha un consumo esagerato di ram e impegna la cpu, con questo dovrebbe ''abbassar la cresta''. Anche le estensioni han la loro colpa, quali estesioni hai installato?

Zero. · 1 Giugno 2018

Fatto! ma purtroppo non è cambiato nulla (estensioni installate nemmeno una).

Codice:

Finestre multiprocesso     0/1 (Disattivato)

Credo possa essere un problema di driver, il computer è nuovo e dovrebbe sopportare bene anche grossi carichi di lavoro.
Ho appena installato Chrome e noto gli stessi problemi che in Firefox. Poi utilizzando VLC è uguale!

Visto che ho assemblato io il pc o ho sbagliato qualcosa nel montaggio (ma non credo) o c'è un problema di incompatibilità tra il mio harware e Ubuntu. E' la prima volta che uso Linux e faccio fatica a muovermi per capire dove devo mettere le mani.

MoMy grazie per l'aiuto comunque!

« MoMy » · 3 Giugno 2018

Posta l' output del comando lspci | grep -e VGA vediamo cosa dicono in rete.

Zero. · 4 Giugno 2018

Ecco cosa mi viene fuori:
00:02.0 VGA compatible controller: Intel Corporation Device 3e91

Gurdando l'output del comando sudo lshw -C video si nota che il driver utilizzato è il i915, proprio quello che mi dava lo stesso problema in Ubuntu 16.04 (LTS) ma che ho dovuto installare manulamente per non far funzionare il pc a scatti.

Codice:

  *-display            
       description: VGA compatible controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:134 memory:de000000-deffffff memory:c0000000-cfffffff ioport:f000(size=64) memory:c0000-dffff

Penso che il problema sia quello
Come si fa ad cambiare i driver video che Ubuntu ha deciso di associare alla mia CPU con scheda grafica integrata?
Mi sembra di aver capito che bisogna aggiornare il Kernel....

Cerca

[RISOLTO] LAG video su Ubuntu, utente alle prime armi

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