[Bug 97834] New: Graphic card initialisation hangs at startup, then resumes normally with kernel error message

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97834

            Bug ID: 97834
           Summary: Graphic card initialisation hangs at startup, then
                    resumes normally with kernel error message
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: pierre.walthery at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 126572
  --> https://bugs.freedesktop.org/attachment.cgi?id=126572&action=edit
GPU crash dump from  /sys/class/drm/card0/error

Hello,

Whan I booted my laptop this morning (Thinkpad T440s, with two extra monitors),
the boot process hung with one of the two external monitor showing hazy
colours, then resumed after a minute or two.

Here is the dmesg output:

<snip>
   12.041319] input: HDA Intel HDMI HDMI/DP,pcm=8 as
/devices/pci0000:00/0000:00:03.0/sound/card0/input18
[   12.275343] kvm: disabled by bios
[   12.302548] kvm: disabled by bios
[   12.340680] intel_rapl: Found RAPL domain package
[   12.340682] intel_rapl: Found RAPL domain core
[   12.340683] intel_rapl: Found RAPL domain uncore
[   12.340684] intel_rapl: Found RAPL domain dram
[   13.217090] Console: switching to colour frame buffer device 200x56
[   13.222834] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[  109.375761] [drm] no progress on render ring
[  109.377473] [drm] GPU HANG: ecode 7:-1:0x00000000, reason: Engine(s) hung,
action: reset
[  109.377478] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[  109.377480] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[  109.377483] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[  109.377485] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[  109.377487] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[  109.395476] drm/i915: Resetting chip after gpu hang
[  113.723643] fuse init (API version 7.25)
<snip>
attached is the content of /sys/class/drm/card0/error

Pierre

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