Kernel Bug Tracker – Bug 12653
LCD powerdown don't work
Last modified: 2013-04-09 06:23:26 UTC
Latest working kernel version:2.6.27.X
Earliest failing kernel version:22.214.171.124-4
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]
Here is my configuration file x11-xorg.
Created attachment 20157 [details]
Here is my .config (kernel-source 126.96.36.199 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
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