When in console (i.e. not in Gnome or KDE) the display will automatically power down in case of inactivity. It seems to me to be set to something around 30 minutes. This power management is completely independent of the X server, and indeed works when no X server is installed. It seems to work entirely independent of userspace.
Is it perhaps done by kernel?
Can somebody please explain where this power management comes from and how it can be configured (i.e. changing the timeout, etc).
I am using Debian Wheezy
Best Answer
You can change that with
setterm -blank X
(X is the number of minutes). Fromman setterm
:Alternatively you can set the kernel parameter
consoleblank=Y
(Y being seconds here).consoleblank=0
disables blanking.