[Bug 59726] [ivb (optimus) LVDS] Boots to blank screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=59726

--- Comment #13 from Chris Wilson <chris at chris-wilson.co.uk> ---
UXA: [     6.960] (--) intel(0): found backlight control interface
/sys/class/backlight/acpi_video1

SNA: [     6.907] (--) intel(0): found backlight control interface acpi_video1
(type 'firmware')

So the bad news is that your system is advertising acpi_video1 as the right
backlight controller for your display, but it sounds like that it is the wrong
one.

Try something like acpi_backlight=vendor or acpi_backlight=legacy
The bug sounds like it solely lies in acpi_video1 being dysfunctional and still
claiming to be the right interface to use.

-- 
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/20130215/78cde836/attachment.html>