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Flickering or constant solid white screen with kernel >=6.1.4 w/ 64GB+ RAM

After upgrading to kernel 6.1.4 or later I get either a strong flickering white screen or solid. Some details:

  • Occurs after logging into Gnome, but not at the login screen
  • Sometimes the full display is constant solid white and sometimes it flickers solid white several times a second
  • When solid white, cursor is still visible and moveable
  • No sign of processes crashing or kernel backtrace in logs
  • Occurs with both Wayland and X11 sessions

After going through the patchset in 6.1.4 and testing while reverting, I was able to locate the commit that introduced the issue: drm/amdgpu: make display pinning more flexible (v2) . Reverting the commit eliminates the issue all the way through to 6.1.6 .

Hardware description:

  • CPU: AMD Ryzen 7950X
  • GPU: Integrated 36:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] (rev c1)
  • System Memory: 64GB DDR5
  • Display: LG 27UL650
  • Type of Display Connection: HDMI

System information:

  • Distro name and Version: Gentoo
  • Kernel version: 6.1.6
  • Custom kernel: Gentoo patches
  • AMD official driver version: N/A

How to reproduce the issue:

  • Boot computer
  • Login to Gnome session