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List:       kde-bugs-dist
Subject:    [Bug 138196] After monitor standby, Xorg go to 100%
From:       Alex <alessandrosturniolo () yahoo ! it>
Date:       2007-12-05 20:31:45
Message-ID: 20071205203145.29351.qmail () ktown ! kde ! org
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http://bugs.kde.org/show_bug.cgi?id=138196         




------- Additional Comments From alessandrosturniolo yahoo it  2007-12-05 \
21:31 ------- I've done some other test. This is what I've founded:

The problem is introduced by kwin 3.5.6. On my Gentoo I've forced the \
system to install kwin 3.5.5 (with kde 3.5.7), and the problem is \
disappeared. With kwin 3.5.6 the problem come back.

I've tried to downgrade only superkaramba, to previous versions, but with \
no success.

The problem is most frequent with applet with fast update time (1 second or \
less).

The problem is observable also without a screen saver. After few minutes \
(3-4) the CPU usage begins to grow, and after 10 minutes the PC is \
unusable, because Xorg (a process that running with root privileges) use \
100% of CPU. My system is a single CPU Athlon XP 3000 (a 32bit single core \
CPU). It's possible that with multi CPU, or a recent PC, the system stay \
usable.

I don't know if is a bug of Xorg, superkaramba or kwin, but I know that \
without kwin, or with kwin <= 3.5.5, the problem disappear.

To reproduce this bug, use kwin >= 3.5.6, superkaramba and a lot of applet \
(clocks, system monitors, and some other with frequent updates), then leave \
your system, and come back after 30 minutes.

Thank you.


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