GPU hang
~ $ uname -m x86_64 ~ $ uname -r 5.10.1
Debian testing
LENOVO_MT_20F9_BU_Think_FM_ThinkPad T460s 20F9CTO1WW
HDMI
[ 4.340879] Bluetooth: hci0: Firmware revision 0.0 build 10 week 41 2018 [ 246.569328] DMAR: DRHD: handling fault status reg 2 [ 246.569343] DMAR: [DMA Write] Request device [00:02.0] PASID ffffffff fault addr fffffffefff16000 [fault reason 23] Unknown [ 256.427609] i915 0000:00:02.0: [drm] Resetting rcs0 for preemption time out [ 256.427661] i915 0000:00:02.0: [drm] Xorg[529] context reset due to GPU hang [ 256.437675] i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:85dffffb, in Xorg [529] [ 256.437676] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. [ 256.437676] Please file a new bug report at https://gitlab.freedesktop.org/drm/intel/issues/new. [ 256.437676] Please see https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs for details. [ 256.437677] drm/i915 developers can then reassign to the right component if it's not a kernel issue. [ 256.437677] The GPU crash dump is required to analyze GPU hangs, so please always attach it. [ 256.437678] GPU crash dump saved to /sys/class/drm/card0/error