[Bug 90617] [Haswell HD4400] Black screen switching to a VT

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90617

--- Comment #9 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
Could you grab intel-gpu-tools from [1] and run tools/intel_watermark once
while the display is working and another time when you have the black screen
and attach the output of both runs here?

http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/

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