Red Hat Bugzilla – Bug 508069
When user is idle for a few mins, the screen fades to blank (ignores user prefs)
Last modified: 2010-10-31 16:38:03 EDT
Description of problem:
I use mplayer from rpmfusion repo and watch movie for about 15 minutes, the screen suddenly became blank(black), and can not be waken up with any action, can not switch to virtual terminal whith ctrl+alt++F2 or others either. The power LED is still on at this time. my platform is dell 640m notebook with core 2050 cpu and i945GM adapter.
(In gnome-power-manager I set: when using AC power, when idle for 15 minutes, turn off screen.)
Version-Release number of selected component (if applicable):
and every packet is up to date.
just using mplayer to watch movie and don't touch the PC, the problem will happen when near the time set in gnome-power-manager.
Steps to Reproduce:
1. set in gnome-power-manager, in AC power page: when idle for about 15 minutes, turn of screen.
2. watch movie using mplayer for about 15 minutes,(don't anything during the time)
3. the problem will appear
the screen turns black, and can not recover with any action.
when the system turns off the screen, i can turn it on by moving mouse.
xset dpms force off && sleep 2 && xset dpms force on
also reproduce the problem?
*** Bug 499061 has been marked as a duplicate of this bug. ***
I just tried the xset thang and it the monitor turned off - and then turned on
I ran it several times with the same result.
BTW: I have F11 installed on two machines - one with proprietary nVidia NV43GL drivers and one is an Intel 945GM/GMS/GME card. They both have the same problem. At random intervals, the screen will just turn off for me - even while I'm typing. Moving the mouse re-enables the monitor.
Try "yum --enablerepo=updates-testing update xorg-x11-server-Xorg gnome-power-manager" and reboot.
This should be a dup of 501534.
> BTW: I have F11 installed on two machines - one with proprietary nVidia NV43GL
> drivers and one is an Intel 945GM/GMS/GME card. They both have the same
> problem. At random intervals, the screen will just turn off for me - even while
> I'm typing. Moving the mouse re-enables the monitor.
This is a different bug - 501534
Ok, we have a few similar bugs here.
501534 is when the screed goes black for ~1 sec and it happens regardless of user activity.
*This* bug (508069) seems to be about screen fading to blank when user is idle. This happens for me too since I installed F11 on my Lenovo T61.
I went to "Power Management" preferences (the battery icon) and set "Put display to sleep when inactive for" to "never". It still happens. I just timed it - it happens exactly 5 minutes after last user activity.
It seems to ignore this setting - if I set "Put display to sleep when inactive for" to 1 minute, it still happens after 5 minutes.
It recovers if I move the mouse or press a key.
(In reply to comment #0)
> Description of problem:
> I use mplayer from rpmfusion repo and watch movie for about 15 minutes, the
> screen suddenly became blank(black), and can not be waken up with any action,
> can not switch to virtual terminal whith ctrl+alt++F2 or others either. The
> power LED is still on at this time. my platform is dell 640m notebook with core
> 2050 cpu and i945GM adapter.
Let's clone the bug, since this seems to be a different problem: blank screen does not go away when user moves the mouse or presses a key?
xset dpms force off && sleep 2 && xset dpms force on
does blank/unblank my screen, but differently: it happens at once.
The "5 minute" blanking is gradual: the screen starts fade, becomes darker and darker, and I can even see the changes on screen (e.g. if I watch a movie or run a compilation) until it goes completely dark in ~5 sec.
(In reply to comment #8)
> The "5 minute" blanking is gradual: the screen starts fade, becomes darker and
> darker, and I can even see the changes on screen (e.g. if I watch a movie or
> run a compilation) until it goes completely dark in ~5 sec.
The fading effect is a byproduct of gnome-screensaver. gnome-power-manager activates DPMS so your monitor will turn off. Two different things. Your bug is with gnome-screensaver/xorg-x11-server.
There are at least four bugs here.
1) When DPMS activates while a full screen XV app is running, the kernel locks up hard. I can reliably reproduce this on my laptop too. This is a kernel bug, though clearly triggered by something in X or userspace. I don't have a serial port on my laptop, so I tried netconsole to see any kernel panic messages but got nothing. Manually triggering the DPMS will hang the system if mplayer is running fullscreen, but otherwise just blanks the screen without hanging.
2) The screensaver/dpms activates even when configured not to, or activates too soon after user interaction -- I have no idea what causes this. There are a bunch of other bug reports with things like this, and there's been enough changes in the Xorg idle computation and other code lately that it's anyone's guess as to where this is at.
3) gnome-screensaver does not detect that mplayer wants the suspend the screensaver. See bug 506191 and <https://bugzilla.gnome.org/show_bug.cgi?id=416429>.
As (1) is the originally reported bug, can we please move the discussion of the other issues elsewhere, and can I suggest a summary change to something like "system locks up after blanking monitor while running fullscreen xvideo application".
Also, I do not believe that bug 499061 is a duplicate of this one.
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I have the incorrect behaviour when running flash video for a while, computer becomes idle, even when my pref are to not became idle.