• Video problem in XFCE


    I have the XFCE desktop and the video i play on KODI has problems. They have some flickering or trembling. I dont know if i am using the right word.

  • @andreasdimo79
    I think it is often called as “screen tearing”. And it is caused by the graphics system, maybe inadequate power on graphics hardware, or slightly non-optimal graphics configuration.

    I’m no expert on this, but I believe some experts here can help you further.
    Anyway, could you show some info about your machine, especially the graphics hardware? Please show the output of commands

    lspci
    pacman -Qs xf86-video
    pacman -Qs nvidia
    
  • @andreasdimo79 as @manuel say will need info about video hardware first to link you in the right direction…

  • And the command “lspci”?

    Note that you may use button </> just above this writing subwindow to format a selected block of text to be more readable.

  • 00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)
    00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
    00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
    00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
    00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
    00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 05)
    00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
    00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
    00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
    00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 05)
    00:1f.0 ISA bridge: Intel Corporation C220 Series Chipset Family H81 Express LPC Controller (rev 05)
    00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
    00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
    03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
    [[email protected] ~]$ pacman -Qs xf86-video
    local/xf86-video-fbdev 0.4.4+13+g9af7f81-1 (xorg-drivers)
        X.org framebuffer video driver
    local/xf86-video-intel 1:2.99.917+831+ge7bfc906-1 (xorg-drivers)
        X.org Intel i810/i830/i915/945G/G965+ video drivers
    local/xf86-video-vesa 2.4.0-2 (xorg-drivers xorg)
        X.org vesa video driver
    
    
  • @joekamprad
    So, Mr. Graphics Expert, how to fix or mitigate flickering problems on Intel integrated graphics? :)

    I found this: https://wiki.archlinux.org/index.php/Intel_graphics#Screen_flickering
    but don’t know if it helps…

  • sudo nano /etc/X11/xorg.conf.d/20-intel.conf
    copy paste this:
    
    Section "Device"
      Identifier  "Intel Graphics"
      Driver      "intel"
      Option      "TearFree" "true"
    EndSection
    

    save the file with [Ctrl+X]

    Can help, but may also removing the xf86 driver package can result in better performance…

  • Thank you guys for your help.

  • @joekamprad
    Do you mean removing xf86-video-intel? I’m also testing this here. :)

  • @andreasdimo79

    I found this: https://wiki.archlinux.org/index.php/Intel_graphics#Screen_flickering

    I tried here kernel parameter “i915.enable_psr=0”, and with it I cannot boot…

  • @manuel said in Video problem in XFCE:

    removing xf86-video-intel

    exactly, as other distros do recommend:

    Note: Some (Debian & Ubuntu, Fedora, KDE) recommend not installing the xf86-video-intel driver, and instead falling back on the modesetting driver for fourth generation and newer GPUs. See Xorg-Installation, and modesetting. However, the modesetting driver can cause problems such as Chromium.
    Also, the modesetting driver will not be benefited by Intel GuC/HuC/DMC firmware.

  • @joekamprad
    Ah, I have a very old machine here, so it may not help. But I’ll try anyway!
    So if you don’t see me for a few days, this is the reason… ;)

  • Well, as I thought, it didn’t boot anymore after removing xf86-video-intel.
    But as my machine is quite old (about 8 years!), it is not much of a surprise.

    But I could use Ctrl-Alt-F2 to get into a terminal, and reinstall the missing file, problem solved.

    I also tried that 20-intel.conf file, and it works OK. Probably the tearing is much less now, but TBH I haven’t much noticed it even before. :)

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