Bug 17149

Summary:	Backlight is reduced on LVDS when an external vga monitor is connected
Product:	xorg	Reporter:	Fathi Boudra <fabo>
Component:	Driver/nouveau	Assignee:	Nouveau Project <nouveau>
Status:	RESOLVED NOTOURBUG	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	low
Version:	7.3 (2007.09)
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Fathi Boudra 2008-08-15 04:02:32 UTC

Backlight is reduced on LVDS when an external vga monitor is connected.
Using a toshiba laptop with GeForce 7600 Go.

xbacklight and xgamma don't work, they do nothing. I guess it's another issue:
https://bugs.freedesktop.org/show_bug.cgi?id=12723

For informations, I have the same issue with nvidia driver:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=+%0D%0A475651

Comment 1 Fathi Boudra 2008-08-15 05:08:48 UTC

It's related to kernel. Since I have updated kernel from 2.6.25 to 2.6.26, backlight is normal.

Comment 2 Stuart Bennett 2009-01-13 16:07:50 UTC

As noted this is a kernel, not driver, problem

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