Re: 2.6.21-rc2 radeon backlight
flat view
From: David Miller <davem@davemloft.net>
Date: 2007-03-02 21:40:08
Also in:
lkml
From: Alex Romosan <redacted> Date: Fri, 02 Mar 2007 13:22:27 -0800
if i don't enable the radeon backlight support the backlight works and i can turn it on and off using radeontool. if i enable the radeon backlight support the screen stays dark (although i can log on my laptop remotely). if i try to use radeontool to turn the backlight on nothing happens. so, at least on the thinkpad, the radeon backlight support disables some other kind of backlight support that works otherwise.
Right, that's the crux of the problem. The Radeon backlight support conflicts somehow with the way the ACPI code programs the same hardware, and until we figure out exactly what's going on, this is a regression. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV