[Bug 95741] Broadwell graphics on Dell XPS13 (early 2015) loses horizontal sync on shift to tty console

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=95741

--- Comment #8 from W Unruh <unruh at physics.ubc.ca> ---
Unfortunately. I do not think I am going to be able to the kernel bisect. I
have now tried 5 times and each time failed to get even the first bisect. The
first time through my stupidity, the second, third because I did not know how
.config worked ( eg commenting out a line does not remove it when you run make
oldconfig) the fourth because the mkspec script was broken since I have an rpm
based system, and the cp command got an invalid option stuck in. The fifth time
I tried to use deb-pkg, but of course after the compilation the system
discovered that it had did not have the right programs to make the .deb file.
Each compilation takes over an hour. 
Also how in the world do you switch off DEBUG_KERNEL? My compilations are 10GB
in size and make a /lib/modules or 2GB in size, which is absurd.

I hope that the dmesg dumps I have supplied are sufficient.

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