It is just one bug, something hangs the GPU forcing us to use expensive
fallbacks. Everything following the hang is us trying to keep the system
ticking over with a dead GPU.
To work out what is hanging the GPU, we need the
/sys/kernel/debug/dri/0/i915_error_state file.
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1207846
Title:
Xorg uses max CPU after drm:i915_hangcheck_hung
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