ktxl45 at gmail.com
Wed Feb 3 10:41:08 UTC 2010
Well, I guess something changed on my system and now I have a bit of a
problem. The backlight on my laptop seems to turn off randomly and
refuse to turn back on. Luckily I can work with it with the attached
I've found through experimentation that I can get the backlight to turn
back on in a couple of different ways. If I run
xset dpms force off
Then the screen will blank. If I hit a key then both my external monitor
and my laptop turn back on.
If I run
xset dpms force standby
I have the same experience.
Now, the command,
xset dpms force on
does absolutely nothing.
So this looks like some kind of a software problem. Something on my
system is deciding that it is time to turn off the backlight. How do I
determine what it is? Is there a way I can force the system to ignore
Ken <ktxl45 at gmail.com>
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