[Bug 104423] New: GPU HANG: ecode 9:0:0x85dffffb, in Xorg [737], reason: Hang on rcs0, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104423

            Bug ID: 104423
           Summary: GPU HANG: ecode 9:0:0x85dffffb, in Xorg [737], reason:
                    Hang on rcs0, action: reset
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: petr.manek at seznam.cz
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 136460
  --> https://bugs.freedesktop.org/attachment.cgi?id=136460&action=edit
Appropriate part of dmesg

I get this 1-2/day after a brand new archlinux install. When the hang happens,
the Xorg display is frozen until I'm kicked out of my session after ~30
seconds.

I don't know yet how to reproduce it. The hang usually happens after several
hours of usage with several X windows open.

Some info about my system:

:: Kernel: 4.14.8-1-ARCH
:: Distro: archlinux
:: Model: LENOVO ThinkPad T570 20H90052MC
:: BIOS: N1VET37W (1.27)

The crash report and relevant dmesg output is attached.

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