[Bug 68355] [HSW ULT] eDP backlight regression at 1920x1080

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=68355

--- Comment #5 from Daniel Vetter <daniel at ffwll.ch> ---
(In reply to comment #4)
> On rc6 without acpi_backlight=vendor, the backlight won't come on at all at
> 1920x1080, but it will at lesser resolutions.  It won't even respond to my
> switching resolutions "trick".

Sounds like we're dealing with a tricky timing issue. The bisect result would
help a lot I hope. Can you please try to bisect where exactly the regression
has been introduced between -rc1 and -rc2?

See https://wiki.ubuntu.com/Kernel/KernelBisection section "How do I bisect the
upstream kernel?" for a howto.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130821/3ec3cf8c/attachment.html>