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[Bug 397936] [NEW] 100% CPU when changing hardware volume control

 

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I checked, and found no similar bug.

Two problems occur when the hardware volume control on my laptop is
used/bumped, i.e. moves:

1. notify-osd goes to 100% CPU for a few minutes.

2. During this time I cannot type anything in the any open terminal
windows, though the mouse functions. Terminal windows can be opened and
their window title bar highlighted, but the cursor stays an empty block.
Alt-TAB also does nothing, though I can switch desktops and go to a text
console.

Further observations:

1. The notification box disappears whenever the mouse goes over it, and
reappears thereafter.

2. ps shows only one instance of /usr/lib/notify-osd/notify-osd (I have
to switch to a text console (Ctrl-F1) to get this).

3. Killing the notify-osd instance )from the text console) with signal
15 or signal 9 doesn't help: a new one (owned by init) appears.

4. My keyboard remains messed up as I type this: Alt-Space doesn't bring
up the current window menu. I can switch desktops with Ctrl-Alt-arrow,
though.

This is a real problem, in that I have to reboot unless I want to wait
10 minutes or so. It happened earlier today at a client, who told me
that it would have been much less of a problem if I had been using
Windows instead of Linux. Not much I could say... :-( Why did I move the
volume? Simple: it's just off the corner of my notebook, and moving the
notebook is not easy without this happening. Putting something down next
to the notebook could move the volume wheel.

Some specs:

Machine: Toshiba Satellite Pro U-300

uname -a: Linux lonsdale.b.c 2.6.28-13-generic #45-Ubuntu SMP Tue Jun 30
19:49:51 UTC 2009 i686 GNU/Linux

Machine running Jaunty to latest updates.

notify-osd version: 0.9.11-0ubuntu3

Let me know if you need more info.

~8-|
John

** Affects: notify-osd (Ubuntu)
     Importance: Undecided
         Status: Invalid

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100% CPU when changing hardware volume control
https://bugs.launchpad.net/bugs/397936
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