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Bug 116899 - Non-smooth video response while battery charge monitor applet running
Non-smooth video response while battery charge monitor applet running
Product: Fedora
Classification: Fedora
Component: gnome-applets (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Mark McLoughlin
Mike McLean
Depends On:
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Reported: 2004-02-26 00:07 EST by Tim Keitt
Modified: 2007-11-30 17:10 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2004-12-20 08:10:07 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Tim Keitt 2004-02-26 00:07:51 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5)
Gecko/20031110 Firebird/0.7

Description of problem:
I've been noticing non-smooth scrolling and video playback on my Dell
610 (ATI Radeon Mobility). I belive the cause is having the "battery
charge monitor" applet running. It must be reading the charge
information from a /proc file every second or so, because video or
scrolling suddenly pauses for 1/10th second at roughly 1/2-1 second
intervals. My guess is that reading this information triggers a global
kernel lock and this stalls X updates noticably. Removing the applet
from the panel restores smooth scrolling and video playback. I'm using
acpi, but my recollection is that this also occurs with apm.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Run battery charge monitor applet
2. Scroll browser window or play video with mplayer, etc

Actual Results:  Scrolling stops for 1/10 second at 1/2-1 second

Expected Results:  Smooth scrolling.

Additional info:
Comment 1 Bart Martens 2004-02-28 07:47:58 EST
Have a look at bug #97322. Lowering the frequency of checks is
appropriate, but I guess that's not enough to solve your video problem.

Maybe the patch(es) of bug #104292 solve your problem?
Comment 2 Mark McLoughlin 2004-07-19 09:51:50 EDT
Do you still see this problem with Fedora Core 2?
Comment 3 Mark McLoughlin 2004-12-20 08:10:07 EST
No response, assuming not

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