[Bug 104411] [SKL] GPU HANG: ecode 9:0:0x85dffffb, in X [3938], reason: Hang on rcs0, action: reset with google maps in firefox

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104411

--- Comment #14 from Stephan Fackler <rantasub at gmail.com> ---
Hi Elizabeth!

Thanks for your effort in investigating the issue.

For me starting X with my standard configuration always leads to a GPU hang
within at most 10 seconds after start up of X.

I'm using a Thinkpad T470 with Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz and
32GB of RAM on Arch Linux. I'm currently using 

linux 4.14.13-1
mesa 17.3.2-2
xorg-server 1.19.6-2

The following information may be useful. As Axel is using herbstluftwm and I do
as well, I was curious whether the WM is the issue. And indeed, I get the
following interesting result:

1) awesomewm without lemonbar: no crash
2) herbstluftwm with lemonbar: crash
3) herbstluftwm without lemonbar: no crash

In fact, I'm not using the standard lemonbar package from Arch, but the package
lemonbar-xft-git from AUR which is simply a build of
https://github.com/krypt-n/bar

In the next days, I will check further combinations and in particular the
lemonbar issue to get down to the precise reason for the crash. Sadly,
currently I do not have more time to dig deeper. But in the meantime I
nevertheless want to share this information.

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