[Bug 105135] [skl] GPU hanging in Xorg (ecode 9:0:0x85dffffb)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105135

--- Comment #5 from Peter F. Patel-Schneider <pfpschneider at gmail.com> ---
I'm seeing the same symptoms on a Lenovo Yoga 920 with Intel Corporation UHD
Graphics 620 (rev 07) running Fedora 27 XFCE with OpenGL version 3.0 Mesa
17.3.5.   The problem started recently, under kernel 4.15, but persisted when I
backed off to kernel 4.14.18.

The trigger is a certain kind of action in Emacs.  I looked at the Emacs code
in question, but I don't see what could be causing problems there.  Is see
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/error but it is zero length.

https://bugzilla.redhat.com/show_bug.cgi?id=1549219 has my report on the crash
as well as a recipe for triggering it.

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