[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 #4 from W Unruh <unruh at physics.ubc.ca> ---
I am afraid that I am not knowledgeable enough to do a bisect. I do know that
the terminal change works under 3.19.2 (from Mageia 5) but does not work with
kernel 4.0 rc 4 5 or 6 using Hans van Schoot's  .config file. 

wget
http://forthescience.org/blog/wp-content/uploads/2015/03/linux-kernel_4.0rc4-config-ubu1404-xps13
-O .config

There are indications on the major.io site that already in rc2 it did not work. 

I will try to run with the drm.debug parameter when I get back to the machine.
I presume I just need to pass that as a grub boot parameter to the kernel.

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