Latest working kernel version:2.6.27.X Earliest failing kernel version:2.6.28.1-4 Distribution:Slackware 12.2 Hardware Environment: Lenovo 3000 C100 Software Environment: xorg-server-1.4.2, Problem Description: If I boot on my PC linux-2.6.28.X LCD powerdown isn't functional. Steps to reproduce: If I set "setterm -blank 5 -powerdown on, setterm -powerdown 15" it goes only LCD blanking but powerdown isn't functional.
Created attachment 20156 [details] xorg.conf Here is my configuration file x11-xorg.
Created attachment 20157 [details] .config Here is my .config (kernel-source 2.6.28.4 from kernel.org).
ACPI doesn't control the LCD power. as this is a X issue, I'm wondering why you file a bug against ACPI. :p please open a new bug report at http://bugs.freedesktop.org/. the graphics guys there may give you some help.
(In reply to comment #3) > ACPI doesn't control the LCD power. > as this is a X issue,... If LCD powerdown don't work under terminal (without X) then is a X issue too?
I have the same problem on Lenovo 3000 N100. No X. The screen blanks, but does not powerdown. Debian stable (lenny), kernel 2.6.26-1-am64
(In reply to comment #5) > I have the same problem on Lenovo 3000 N100. > No X. The screen blanks, but does not powerdown. > Debian stable (lenny), kernel 2.6.26-1-am64 In case I am doing something wrong with config, I have a Debian base system with laptop packages. No desktop environment. setterm setup like this: setterm -blank 1 setterm -powersave powerdown setterm -powerdown 2 setterm -store Let me know if I must provide more details.
This may be a dup of 12690.
X (or nowdays X+DRM issue). Whether the text console supports blanking to power down depends on the system