[Intel-gfx] i915 with Dell XPS 9310

[Saarinen, Jani]

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 at lists.freedesktop.org> On Behalf Of wi nk
> Sent: perjantai 3. syyskuuta 2021 15.38
> To: intel-gfx at lists.freedesktop.org
> Subject: [Intel-gfx] 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!