Version: (using KDE 4.0.83) Installed from: Fedora RPMs OS: Linux If a screen saver is running, the monitor will not be turned off after the time specified in power management configuration. However, if no screen saver is configured to start or if the time specified in power management for shutting down the monitor is lesser then the time to initiate the screensaver, then the monitor is turned off correctly. I've tested with several screen savers (blank screen, glmatrix, science and others), always with the same result.
version: 4.1.1 via ports os: freebsd 7.1-prerelease I noticed this under the last Kubuntu 4.1.1 I had installed, but the problem still occurs under BSD. I have DPMS enabled for my monitor in xorg.conf and selecting / enabling "Power Management" in the control panel doesn't actually do anything. The screen saver runs forever and the monitor never turns off. I haven't tested whether or not the monitor will turn off if the screen saver is not enabled, but I will do so.
I confirm the problem still occur with KDE 4.1.1 (Fedora 9). Just for the record, this did not happen on KDE 4.0.x, the monitor was turned off correctly then. When I first reported the problem I was using an nvidia video card. Now I'm using Intel video, but nothing has changed.
version: 4.1.2 os: gentoo linux The issue still occurs on 4.1.2.
This bug is possibly a duplicate of Bug #165368.
I can confirm this, on my laptop (Dell Inspiron B130, all Intel hardware) I can produce the following problems with the following procedures: 1) Enable screensaver with or without lock after time X 2) Close laptop -> LCD backlight turns off 3) After a second or so LCD backlight turns back on and screensaver is running 1) Enable screensaver to activate after X minutes 2) Enable Display Power Management to do *anything* after X+1 minutes 3) Display remains on with screensaver running, i.e. Display Power Management Settings have no effect. I can reproduce this under KDE 4.1.3 on Debian Lenny with KDE4 backport (http://kde4.debian.net) and also under KDE 4.1.2 on Slackware-current. I think perhaps Bug 156605 , Bug 165265 , Bug 170478 , and Bug 165368 all relate back to the same DPMS+screensaver=no_worky issue.
This bug does not exist on KDE 4.1.2 running on Mandriva 2009.0 - the DPMS works fine, and screensavers do drop to standby, suspend or poweroff whilst the DPMS is in use. My controls for the service in SystemSettings work perfectly and operate the system as needed.
For me, it still exists in KDE 4.1.3 running on Fedora 10. The monitor is not turned of if screensaver is running.
I'm not sure if it's this bug specifically that I'm experiencing but I know kde won't shut the monitor off but xset dpms force off works. is there a dcop call I can run to manually test kde?
*** This bug has been confirmed by popular vote. ***
I can confirm this on KDE 4.1.87 (compiled from sources - 20090101) on my Mandriva 2009 and Cooker. It seems that if DPMS timeout setting for standby is less or equal to the screensaver timeout then the screen blacks out ok (backlight is off) but if screensaver kicks in before DPMS or if screensaver is turned on manually (e.g. by moving mouse to the corner with appropriate setting on) then DPMS is never applied and backlight is always on.
Confirm problem exists in openSUSE 11.1 / KDE 4.1.3
NOTE: Because LCD monitor backlights have a lifespan before failure, this problem causes damage to hardware. For instance, having a backlight left on overnight over a period months will definitely cause the brightness to dim compared to a screen which is not subjected to this problem.
Fixed for 4.2.1.
*** Bug 165368 has been marked as a duplicate of this bug. ***
*** Bug 170478 has been marked as a duplicate of this bug. ***
*** Bug 156605 has been marked as a duplicate of this bug. ***
You mean that in kde 4.2.1 this problem will be resolved?
(In reply to comment #17) > You mean that in kde 4.2.1 this problem will be resolved? Yes, the fixes went into SVN at the end of January. See http://lists.kde.org/?l=kde-commits&m=123298285600590&w=2 and the next two commits.
I think this has regressed in 4.2.4 my screen is no longer shutting off.
Works fine for me. Fedora 11, KDE 4.2.4.
yeah. this hasn't regressed I've another bug open where it's intermittent. I was just having a lot of problems with that. come to think of it could be an intel driver problem... I haven't noticed it in a week since I upgraded to the development driver.
*** Bug 180104 has been marked as a duplicate of this bug. ***