[Bug 105155] [bdw] GPU HANG: ecode 8:0:0x86dffffd, in Xorg

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Mar 23 01:16:38 UTC 2018


--- Comment #21 from Samuel Thibault <samuel.thibault at ens-lyon.org> ---
Created attachment 138292
  --> https://bugs.freedesktop.org/attachment.cgi?id=138292&action=edit

I'll have to recompile that kernel, but here are already the dmesg results with
4.15.12 with drm.debug=0x1e for now.

I actually didn't need to use ssh because even if Xorg looks frozen,
ctrl-alt-f2 works (it just takes some time to take effect. Apparently moving
the mouse helps)

>  You mentioned vga before, is that correct? Don't you mean DP?

Well, it's really a VGA plug that I have on this laptop, even if in xrandr it
happens to be called DP-2.

> do this worked with a previous version of mesa?

As far as I can remember, I have never been able to get a stable Xorg workspace
without disabling acceleration, before adding intel_iommu=igfx_off.

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