11.10 64bit - monitor sleep mode in a couple of seconds?!?

[TheBigAmbulance]

I have had a weird occurance with one install of kubuntu. Without any indication, my monitor goes into power save mode if I stop any activity within a couple of seconds to a minute. Power Save is completely off.

Any ways to troubleshoot this? Normal operation is fine.

[oshunluvr]

type xset -q in a terminal. The last four lines show your current DPMS settings. One minute would be 60. On my desktop, I usually turn off power management and let xorg use it's defaults (10 minutes).

[TheBigAmbulance]

Here is part of that output:

DPMS (Energy Star):
Standby: 600 Suspend: 600 Off: 600
DPMS is Enabled
Monitor is On

So it looks as though everything turns off in 10 minutes... I will turn off DPMS.

What is weird that I reloaded the OS, and it came back. I suppose it could be possible that it's from something to do with the 3.0 kernel?!? Who knows.

[rms]

Try doctordruidphd's solve. Also, if it happens when you're running vlc or afterwards, disable the "Inhibit the power management daemon during playback" option in vlc. Maybe it interferes or restores global settings wrongly.

[SteveRiley]

Left-field idea...are you, perchance, using an external monitor connected to a laptop? I am. On occasion, I see the exact same problem you describe. The only fix-it method I've found (besides rebooting) is to remove the power cable, allow Solid to switch power management to battery, then plug the power cable back in. Weird!

[TheBigAmbulance]

Yup, laptop sitting in a docking station with an external monitor.

Reboot will fix it too. Weird....

[GreyGeek]

I have the problem of my screen going blank (black) after 10 minutes of no mouse activity, even though I have the KDE screen saver off and powersaver off.
xset -q gives:

Screen Saver:
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 600

but "xset s off" doesn't do anything and the xset man doesn't give me any ideas.

How do I set "prefer blanking: no" instead of "yes"?

[Shabakthanai]

When I want the power saving features to cease for a while, (on the command line) I simply enter: xset -dpms. Dpms is disabled until I enter xset +dpms. That is not inconvenient for me. Hope this may help you. I suppose if you wanted to stop dpms permanently you could enter the same command using sudo.

[rms]

How do I set "prefer blanking: no" instead of "yes"?

xset s noblank