Hi, Please report actual bug using instructions: https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs ? Br, Jani Saarinen Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo > -----Original Message----- > From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of wi nk > Sent: perjantai 3. syyskuuta 2021 15.38 > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: i915 with Dell XPS 9310 > > Hello all, > > I've been following recent kernels on this dell laptop for almost a year now to work > through some issues with the ath11k module. I've been experiencing random > occasional video artifacts for most of that time. These artifacts would cause the > i915 module to report some kind of underrun (sorry I don't have those logs any > longer). At some point around 5.10 the artifacts turned into full panics that needed a > reboot instead of some waiting and jiggling. Kalle reported here: > http://lists.infradead.org/pipermail/ath11k/2021-August/001451.html > that there was a commit he could revert to fix it. I was unable to reproduce that fix > by reverting it. > > I'm now running 5.14.0 and it seems to have changed behavior again. > Instead of the machine hard locking (ie: no caps lock even), it seems to recover after > a bit and then I can see this in dmesg: > > [226387.152234] DMAR: DRHD: handling fault status reg 3 [226387.152244] DMAR: > [DMA Write NO_PASID] Request device [0x00:0x02.0] fault addr 0xf0afc000 [fault > reason 0x07] Next page table ptr is invalid [226402.058857] i915 0000:00:02.0: > [drm] GPU HANG: ecode 12:0:00000000 [226402.058876] i915 0000:00:02.0: [drm] > Resetting rcs0 for stopped heartbeat on rcs0 [276353.590922] clocksource: > timekeeping watchdog on CPU4: hpet retried 2 times before success > > <snip, later> > > [345312.963065] DMAR: DRHD: handling fault status reg 3 [345312.963077] DMAR: > [DMA Write NO_PASID] Request device [0x00:0x02.0] fault addr 0xf21ec000 [fault > reason 0x07] Next page table ptr is invalid [345323.814583] Asynchronous wait on > fence > 0000:00:02.0:gnome-shell[2707]:1a15a6 timed out > (hint:intel_atomic_commit_ready [i915]) [345327.672581] i915 0000:00:02.0: [drm] > GPU HANG: ecode 12:1:85dffffb, in signal-desktop [26051] [345327.672606] i915 > 0000:00:02.0: [drm] Resetting rcs0 for stopped heartbeat on rcs0 [345327.672656] > i915 0000:00:02.0: [drm] signal-desktop[26051] context reset due to GPU hang > > I'm not sure what the DMAR messages are about, I included them in case they're > relevant. How can I debug this further? I'll gladly enable whatever is needed :) > > Thanks!
