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7020100
(Get the code!)
Sorry, but the patch doesn't fix this problem. Although it fixes the bug about not saving monitor power off setting (bug #46585 https:/
I made a clean install of Kubuntu 6.10, applied the fix and this bug still persists. The root of this problem is that KDE for some reason uses wrong time units, it misinterprets seconds for minutes. After applying the patch if I set monitor to go off after 2 minutes, displayconfigrc had line "dpmsSeconds=120", command "xset q" returned value 120 and monitor went off after 2 mins. However after logout&login system settings showed monitor to go off after 2 hours and "xset q" returned 7200.
However there is a workaround. I edited manually the dpmsSeconds value in displayconfigrc to 2 and after new login system settings show that monitor should go off after 2 mins, "xset q" returns 120 and my monitor actually went off after 2 minutes. But there is a catch.
Before KDE is fully up and running it still seems to interpret the dpmsSeconds value in displayconfigrc as seconds. So if the dpmsSeconds value is small enough, monitor goes off after few seconds of inactivity. Basically this means that your desktop starts with a blank screen. I was able to reproduce this with dpmsSeconds values 5 and smaller. If the value was bigger (for example 10) the seconds to minutes conversion happened before monitor went off and it stayed on until as many minutes had passed as was the value of dpmsSeconds.
How to fix this? Quick and dirty hack would be dividing the value stored in displayconfigrc by 60 (this causes blank start screen problem with small power off times), but the right way would be to find out where and why this seconds=minutes misinterpretation happens and use only seconds (or only minutes).