[Bug 71328] [HSW] Stuck scanline wait on render

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71328

--- Comment #8 from Christian Roeder <christian.roeder at red-hood.de> ---
(In reply to comment #7)
> The /sys/class/drm/card0/error

Unfortunately, there is no error recorded:
$ cat /sys/class/drm/card0/error 
no error state collected

I checked right after the hang occured.

I also noticed that it only happens if I attach an external display either via
DP/DVI-Adapter or via the DVI output on the docking station, and run chromium.
Other software in user space does not seem to trigger it. Also, it does not
happen if just using the internal display.

I run Kernel 3.12.0 from Arch Linux, but it happened with 3.11.* before.

Any more info i should deliver?

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