Bug 22531 - slow 2d with certian webpages with firefox
Summary: slow 2d with certian webpages with firefox
Status: RESOLVED DUPLICATE of bug 21683
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: xf86-video-ati maintainers
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-06-29 08:52 UTC by Bret Towe
Modified: 2009-06-29 09:46 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
Xorg.0.log (34.55 KB, text/plain)
2009-06-29 08:52 UTC, Bret Towe
no flags Details

Description Bret Towe 2009-06-29 08:52:47 UTC
Created attachment 27222 [details]
Xorg.0.log

on an older emachine laptop with a radeon igp card
xorg log says its "Chipset: "ATI Radeon IGP320M (U1) 4336" (ChipID = 0x4336)"
i see massive cpu usage and really slow scrolling on a few webpages
the common item seems to be a static item and other bits moving behind it

most recent webpage that does it is this:
http://marswatch.astro.cornell.edu/pancam_instrument/projects_2.html

first i noticed it on was:
http://www.cdjapan.co.jp/

the second url however seems to not be as bad any more
not sure if they changed something or one of the updates into -git fixed it

running ubuntu 9.04 with the xorg on the edge ppa which gives me
near latest -git of radeon driver

attached is xorg log if required
Comment 1 Alex Deucher 2009-06-29 08:58:10 UTC
Please attach your xorg log and config.
Comment 2 Alex Deucher 2009-06-29 08:58:44 UTC
Please attach your xorg log and config.(In reply to comment #1)
> Please attach your xorg log and config.
> 

nevermind, I missed it before.
Comment 3 Alex Deucher 2009-06-29 09:02:12 UTC
This might be a dup of bug 21683.  does:
Option "AccelMethod" "XAA"
help?
Comment 4 Bret Towe 2009-06-29 09:24:01 UTC
it does help
but I thought xaa was being phased out hence the report
Comment 5 Bret Towe 2009-06-29 09:44:40 UTC
also with exa still enabled i played with fbtexpercent
and looking at man page it sounds like near 0 should help exa
but i found it seems to act better with settings near 100

is the man page documentation backwards or is that a bug?
Comment 6 Alex Deucher 2009-06-29 09:46:07 UTC
(In reply to comment #4)
> it does help
> but I thought xaa was being phased out hence the report
> 

It is, but EXA does not perform well in some cases where vram is limited due to the lack of a proper memory manager.  This should be rectified with the new drm memory manager work that is currently in progress.  In the interim, there are cases where XAA is still useful.

*** This bug has been marked as a duplicate of bug 21683 ***


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