[Bug 112317] New: [DRM] Intel Screen freeze: rcs0 hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=112317

            Bug ID: 112317
           Summary: [DRM] Intel Screen freeze: rcs0 hang
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: trivial
          Priority: not set
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: ardillo at randomdata.nl
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 145989
  --> https://bugs.freedesktop.org/attachment.cgi?id=145989&action=edit
/sys/class/drm/card0/error file

Machine: Lenovo Thinkpad T480s
OS: Arch
disp/Wm: Xorg/i3

uname -m : x86_64
uname -r : 5.3.11-arch1-1

dmesg -w logfile :
[ 9156.837247] i915 0000:00:02.0: GPU HANG: ecode 9:0:0x00000000, hang on rcs0
[ 9156.837248] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 9156.837249] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 9156.837249] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 9156.837250] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 9156.837251] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 9156.838259] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9156.838259] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9438.856990] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9520.776367] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9594.802504] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9652.828731] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9704.668282] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9718.748237] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9726.854844] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9738.801416] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9754.801261] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9762.694520] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9800.667578] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9810.694236] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9820.720756] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9830.747418] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0
[ 9846.747300] i915 0000:00:02.0: Resetting rcs0 for hang on rcs0


Graphical output freezes for a short time than picks up. 

I'm trying to reproduce, Error happened when installing a KVM vm over ssh with
tmux. When starting the console installer and during the console install. 

Not sure if that caused the problem, but after the install was done the hang
ups stopped. Could this cause the problem? 

Screen the installer was on was a VGA display, connected to a Lenovo docking
station.

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