Bug#981368: xserver-xorg-video-intel: Xserver becomes unresponsive with some worloads. maybe related to video rendering

Looks like this was actually a bug in the i915 module: https://gitlab.freedesktop.org/drm/intel/-/issues/2905 There is a linked issue #2923 "deadlock in intel_atomic_cleanup_work (kernel 5.10.5)" that seems to fit the descriptions in this thread here. After upgrading to a custom 5.10.17

Bug#983390: mesa-vulkan-drivers: bad interactions between VkLayer_MESA_device_select and other layers

Package: mesa-vulkan-drivers Version: 20.3.4-1 Severity: important Tags: patch fixed-upstream Forwarded: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3801 Control: found -1 21.0.0~rc2-1 The device selection layer in Mesa 20.3.x >= 20.3.4 and 21.0.x >= 21.0.0~rc2 has problematic interactions

Processed: mesa-vulkan-drivers: bad interactions between VkLayer_MESA_device_select and other layers

Processing control commands: > found -1 21.0.0~rc2-1 Bug #983390 [mesa-vulkan-drivers] mesa-vulkan-drivers: bad interactions between VkLayer_MESA_device_select and other layers Marked as found in versions mesa/21.0.0~rc2-1. -- 983390: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=983390