[Bug 105373] [drm] GPU HANG: ecode 9:0:0xfedffffa, in Xorg [1345], reason: Hang on rcs0, action: rese

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105373

--- Comment #15 from Mika Kuoppala <mika.kuoppala at intel.com> ---
Looked at this and discussed with Chris on irc and here are the findings:

HW RING START is not from request that was queued to hardware. And the
gpu is dormant on a previous requests tail.

Please retest with fetching a up-to-date drm-tip from
https://cgit.freedesktop.org/drm-tip and prevent driver from loading a dmc
firmware by moving dmc firmware binaries out from /lib/firmware/i915.

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