[Bug 68471] Display extremely dark on Dell XPS 13 since 3.10 Kernel in EFI mode

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=68471

shrtckt <scottsshort at gmail.com> changed:

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                 CC|                            |scottsshort at gmail.com

--- Comment #16 from shrtckt <scottsshort at gmail.com> ---
(In reply to Dennis Jacobfeuerborn from comment #14)
> Yes, in UEFI mode nothing happens when i echo values into the "brightness"
> files though the respective "actual_brightness" shows the correct value
> afterwards.
> 
> What's curious is about this is that this is one of those "Sputnik" Laptops
> that were specifically designed to work with Linux and can be ordered with
> Ubuntu pre-installed from Dell. Since they are very popular I can't be the
> only one seeing this. I've got the version with Windows pre-installed though
> and added Fedora in a dual-boot configuration.

You are not the only one seeing this. I have the same system with the same
issues (Gentoo Mgmt). I have followed this thread and tried all recommendations
with the same results. I am currently running 3.13.0-rc7 (UEFI boot). I see the
"black screen of death" when booted in 3.13.0-rc8 (same .config). I really have
no idea how to help fix this, I just wanted to confirm others are seeing this
also.

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