Public bug reported:
Binary package hint: gnome-screensaver
I have a 3-screen workstation setup, with screens :0.0, :0.1, and :0.2.
gnome-screensaver fails to detect activity on screens :0.1 and :0.2,
although activity on :0.0 is properly noticed. "Activity" is defined
here as keyboard and mouse button pushing and mouse motion. After the 2
minutes gnome-screensaver is set to are up, keyboard input is grabbed
for a split second. I believe this is while it activates the fading to
screensaver. The keyboard input is then noticed and keyboard input
comes back after a moment. Mouse motion is not noticed at all, nor are
mouse button pushes. This problem was also present in feisty.
I have verified that this is a gnome-screensaver bug instead of an X
server inactivity problem, as disabling X screensaver works properly
(i.e. switching to black ONLY happens when mouse and keyboard are
inactive). I have a guess as to why this occurs, as it looks like
gnome-screensaver watches all keyboard and mouse and window activity
instead of asking the X server about inactivity as it (IMHO should).
This bug is terribly annoying as I must either turn off the screensaver
(and leave my workstation unlocked) or else put up with a second or two
of suspended keyboard input every fading cycle (there have been 3 or so
while I've been typing this bug report).
** Affects: gnome-screensaver (Ubuntu)
Importance: Undecided
Status: New
** Tags: gnome multihead
** Tags added: gnome multihead
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multihead bug: gnome-screensaver fails to detect keyboard, mouse activity on
screens :0.1, :0.2
https://bugs.launchpad.net/bugs/159621
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