[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 #11 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
(In reply to Cesare Leonardi from comment #10)
> Sorry but this is a bit out of my possibilities and knowledge.
> Aren't that info collectable in other ways?

The intel_watermark tool is recent addition to intel-gpu-tools, so it is
probably not yet packaged by your distro, but you could give that a try. I'm
not aware of any easier way to get this information.

The steps for compiling intel-gpu-tools are roughly the listed below.

git clone git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
cd intel-gpu-tools
./autogen.sh
make

(then you can run as root) ./tools/intel_watermarks

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