On Sat, 2006-02-18 at 22:31 -1000, Peter Besenbruch wrote:
Just thought I would add my voice to those who report problems with XORG
6.9.0.dsfg.1-4 and the ability to turn off the backlight to save the
screen and reduce power consumption. I have had the problem in two
laptops. The first, a Sony, runs a 2.4.30 kernel and uses a radeon
driver (xorg's built in version). Since the upgrade from 6.8.2, the
screen will neither blank or shut off in KDE. On a second laptop (a
Toshiba) with an i810 driver, the screen would blank, but the backlight
would not shut off. I compiled a 2.6.15 kernel for it, and the backlight
would shut off, but then turn back on.
It's been reported that at least some of these issues are due to the X
server treating ACPI battery events as activity, does Option "NoPM" work
around this?