[Bug 64332] [HD Graphics 4000] Garbage on screen on Samsung NP900X3E-A02

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64332

--- Comment #31 from Ben Widawsky <ben at bwidawsk.net> ---
(In reply to comment #28)

> What information can I provide? I'll attach the reg dump and dmesg. 
> (After I reboot, now, I get "Couldn't map MMIO region: Resource temporarily
> unavailable". I did boot with drm.debug=0xe and i915.i915_enable_fbc=0. From
> other bugs, might be the case that my intel_reg_dumper is to old?)
> 

Is this with the latest intel-gpu-tools
(http://cgit.freedesktop.org/xorg/app/intel-gpu-tools)?

You have to be root to run the dumper IIRC.

Also, please try quick_dump if the above won't work. From the clone directory:
sudo ./tools/quick_dump/quick_dump.py -a

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