I've had DPMS problems with 4.0.2 as well, though different from what you describe. In my case, APM seemed to conflict with DPMS. In particular, the sequence
xset dpms force suspend apm --suspend did not work as expected (the second line would cancel out the effects of the first). FWIW, I've now turned on the "DPMS on suspend" option in BIOS, and commented out the call to xset. This works as advertised. -chris "Noah L. Meyerhans" <[EMAIL PROTECTED]> writes: > Hello. I'm having a strange problem with X 4.0.2 (woody) and my Energy > Star compliant Sony monitor. I've configured X to use DPMS to turn off > the monitor after 10 minutes of inactivity with the following line in > XF86Config-4: > Option "DPMS" > Option "OffTime" "10" > > After the specified period of inactivity, the monitor appears to turn > itself off, but things get a bit weird. After some time (a minute or > two) the monitor clicks as if waking up, and the power indicator > switches from solid orange to flashing orange/green. Logging in to the > system from another machine and using xset to get the status of the > monitor (yes, I'm talking to the right X server ;^) indicates that DPMS > is disabled. Huh? It was enabled before! using 'xset dpms 0 0 600' or > 'xset dpms force off' turns it off for a little while, but then it > reverts to its weird behavior again. > > Until today I had power saving enabled in the system BIOS, but in an > attempt to isolate the problem I turned it off. The symptoms remain > unchanged, though.