On Tuesday February 10 2009, David C. Rankin wrote:
Randall R Schulz wrote:
That might make it a culprit the other symptom I reported but about which I received no replies: At certain intervals after the machine becomes idle, the X11 server begins consuming 100%, mostly kernel mode. That condition comes and goes a few times (I don't know the pattern or timing very precisely 'cause it happens on intervals of 10s of minutes and I haven't had the patience to monitor it carefully or long enough) but eventually becomes "permanent" (instead of intermittent). As soon as I touch the mouse or keyboard, everything goes back to normal (I can watch the patterns using htop from another system logged in via ssh).
What is your screensaver interval? kpowersaved suspend interval?
The symptom (kernel-mode CPU saturation of one core) does not correspond to the screen saver engaging. Nor does it correspond in any straightforward to any of the intervals of the successive DPMS power-save modes. In fact, it happens even when I use the "Presentation" mode. Also, the high CPU use comes and goes a few times before becoming permanent.
It might be that your box is trying to go into sleep mode and fails and then has to come back to life. Maybe X consuming 100% is the machine state being processed for suspend or sleep, then the suspend or sleep fails, the machine is back up, then the next sleep interval later, the process repeats itself?
Just a SWAG at it. (swinging wild ass guess)
I suspected (and still suspect) that its related to DPMS, but I can't see a clear relationship.
-- David C. Rankin
Randall Schulz -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org