[Bug 194766] [drm:pid12:i915_hangcheck_elapsed] [drm:pid12:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194766

Zhong <alex_jame_mick@yahoo.com> changed:

           What    |Removed                     |Added
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                 CC|                            |alex_jame_mick@yahoo.com

--- Comment #73 from Zhong <alex_jame_mick@yahoo.com> ---
Hi All,

I'm on 12.2 Release and my logs does show this issue is happening as well:

ep 25 12:00:07 Dell kernel: error: [drm:pid12:i915_hangcheck_hung] *ERROR*
Hangcheck timer elapsed... GPU hung
Sep 25 12:00:07 Dell kernel: info: [drm] capturing error event; look for more
information in sysctl hw.dri.0.info.i915_error_state
Sep 25 12:00:07 Dell kernel: error: [drm:pid0:i915_reset] *ERROR* Failed to
reset chip.
Sep 25 13:42:46 Dell kernel: .
Sep 25 13:43:18 Dell devd[534]: notify_clients: send() failed; dropping
unresponsive client
Sep 25 13:43:18 Dell syslogd: last message repeated 1 times
Sep 25 13:43:19 Dell kernel: 
Sep 25 13:43:19 Dell kernel: error: [drm:pid3309:assert_pll] *ERROR* PLL state
assertion failure (expected on, current off)
Sep 25 13:43:19 Dell syslogd: last message repeated 1 times
Sep 25 13:43:19 Dell kernel: error: [drm:pid3309:assert_pipe] *ERROR* pipe A
assertion failure (expected on, current off)
Sep 25 13:43:20 Dell kernel: error: [drm:pid3309:intel_enable_lvds] *ERROR*
timed out waiting for panel to power on
Sep 25 13:43:20 Dell kernel: error: [drm:pid3309:intel_modeset_check_state]
*ERROR* encoder's hw state doesn't match sw tracking (expected 1, found 0)
Sep 25 13:43:20 Dell kernel: error: [drm:pid3309:assert_pipe] *ERROR* pipe A
assertion failure (expected on, current off)
Sep 25 13:43:27 Dell kernel: .

This usually occurs if I leave my laptop on overnight or in the middle of
watching video, the screen will go dead as you can visibly see the image few
seconds after and a restart puts the screen back on.

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