Screen tearing by default on Intel Xe graphics

[Daniel Hammer]

When using Ubuntu 23.10, by default, there is screen tearing on Intel Iris Xe graphics when watching a video or movie or playing a game. For me, the workaround has been to add options "i915.enable_psr=0 i915.enable_fbc=0" into the kernel command line, which disables Panel self refresh and Framebuffer compression in the kernel i915 video driver.

After applying the workaround no screen tearing can be observed. The issue is experienced in both X.Org and Wayland sessions.

Output of "inxi -G":
Graphics:
  Device-1: Intel TigerLake-LP GT2 [Iris Xe Graphics] driver: i915 v: kernel
  Display: server: X.Org v: 1.23.2 with: Xwayland v: 23.2.0 driver: X:
    loaded: modesetting unloaded: fbdev,vesa dri: iris gpu: i915
    resolution: 2736x1824~60Hz
  API: OpenGL v: 4.6 Mesa 23.2.1-1ubuntu3 renderer: Mesa Intel Xe Graphics
    (TGL GT2)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Libera.chat.

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