Red Hat Bugzilla – Bug 548819
gnome-screensaver cannot be reliably inhibited
Last modified: 2015-01-14 18:24:22 EST
Description of problem:
Apparently, gnome-screensaver (gnome-screensaver-2.26.1-3.fc11.x86_64) cannot be inhibited reliably on Fedora 11. I have noted two failure modes:
1) xdg-screensaver attempts to inhibit gnome-screensaver by executing gnome-screensaver-command -p in a loop, once every 59 seconds. Apparently, gnome-screensaver now ignores -p unless it's actually active, meaning that the screensaver engages, then releases on the next execution of that command. This is a change from gnome-screensaver on Fedora 10, where this worked just fine.
2) gnome-screensaver-command -i -n "<window name>" -r "<reason>" will successfully inhibit the screensaver from engaging. Ever. Apparently, the only way to uninhibit the screensaver at all is to kill it and restart it. Additionally, gnome-screensaver-command --query in another window claims that the screensaver is not inhibited, even though it clearly never re-engages.
I believe I've also tried DBus methods on this system and found that, although I could get gnome-screensaver to inhibit and gnome-screensaver-command --query to report the inhibit status, I could not get it to uninhibit, even after gnome-screensaver-command --query reports an uninhibited status. I also note that there are a number of DBus method changes between Fedora 10 and Fedora 11, indicating that something major has happened in gnome-screensaver.
Version-Release number of selected component (if applicable):
Perfectly reproducible, so far as I can tell.
Steps to Reproduce:
1. Attempt to inhibit screensaver
2. Watch screensaver either engage, or watch screensaver never engage after uninhibiting the screensaver.
Screensaver either does not inhibit or is inhibited forever; there appears to be no middle ground.
It should be possible to inhibit the screensaver, perform whatever task required the inhibiting, then reliably uninhibit the screensaver. If gnome-screensaver simply reset its idle time when gnome-screensaver-command -p was executed, that would be sufficient. If uninhibiting actually worked, that would also be nice. Ideally, *both* of these methods should result in reliable inhibiting/uninhibiting behavior.
I'm seeing this on F12 as well.
I play my movies like this and it worked in F10, but not
after an upgrade:
mplayer -fs -softvol -softvol-max 1000 -heartbeat-cmd 'gnome-screensaver-command -p' -framedrop *.mkv *.avi
The screensaver still comes on. I tried this as well
before playing the movie:
while true ; do sleep 10 ; gnome-screensaver-command -p ; done
Then after 10 minutes it still started fading out the screen, but
it actually didn't start the screensaver, GLMatrix which is my default,
but it super quickly faded back up and I could continue watching.
gnome-screensaver-2.28.3-1.fc12.x86_64 same problem.
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