[Bug 62507] [snb] rc6 hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62507

--- Comment #6 from Charles Samuels <charles at kde.org> ---
But I can't fix the problem even with "i915.semaphores=1 i915.i915_enable_rc6=0
i915.i915_enable_fbc=0 i915.i915_enable_ppgtt=0"

and then `echo 0 > powersave` does not help

In my case, I can boot up and turning on composition (kwin) triggers it
immediately. Without composition, firefox triggers it pretty easily.

Eventually I get this:

[  905.161034] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring wedged!
[  905.161039] [drm:i915_reset] *ERROR* Failed to reset chip.

And then glxgears segfaults on startup.

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