[CentOS] Screensave issue in Centos 4.5

Garrick Staples garrick at usc.edu
Thu Nov 8 04:32:27 UTC 2007


On Wed, Nov 07, 2007 at 11:12:32PM -0500, fred smith alleged:
> Hi!
> 
> I've got a Centos 4.5 box at work.
> 
> I recently got a new LCD monitor and since that time have been having
> screen saver problems (they might have been occurring with the older
> CRT too but if so I didn't notice.)
> 
> I've set it up to use "blank screen" only, to go to black screen in
> 20 minutes. Then I set up powersave to progress through the three
> modes at short intervals so that after an hour the display should 
> be powered off.
> 
> If I sit there and watch it (say, e.g. I'm busy doing paperwork and
> don't use the computer for a while :) it'll do exactly that, i.e., the
> display goes OFF.
> 
> So, I leave at the end of the day. When I come in the next morning the
> screen is NOT powered off, the power light is on (not yellow, not off)
> and every little while an OSD window pops up saying it's getting no
> video signal.
> 
> So, somewhere between going off in the short-term and being idle for
> 12-14 hours overnight, something goes awry and the display appears to
> get turned back on.
> 
> Anyone got any idea how I can figure this one out?
> 
> I have very similar settings at home (now on Centos 5, but also previously
> on Centos 4.5) and have not observed that behavior. Different computer,
> different video card, different monitor, though I don't see what difference
> it should make....

Sounds like your box is doing the right thing and shutting off the video, but
the monitor itself poewers on to complain about it.  Maybe there is a setting
in the monitor to not visibly whine.

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