Bug 148475 - xorg.conf -- very slow X11 on ATI Rage XL
Summary: xorg.conf -- very slow X11 on ATI Rage XL
Status: RESOLVED FIXED
Alias: None
Product: SUSE Linux 10.1
Classification: openSUSE
Component: X.Org (show other bugs)
Version: Beta 3
Hardware: Other Other
: P5 - None : Normal (vote)
Target Milestone: ---
Assignee: Marcus Schaefer
QA Contact: Stefan Dirsch
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-02-06 18:45 UTC by Harald Koenig
Modified: 2006-02-07 09:25 UTC (History)
2 users (show)

See Also:
Found By: Other
Services Priority:
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Blocker: ---
Marketing QA Status: ---
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Description Harald Koenig 2006-02-06 18:45:27 UTC 
that 2*2 core opteron server box as a onboard ATI Rage XL which feels
quite slow even with simple 2D window moves etc with SUSE 10.0, but now
in 10.1-beta2 I get opaque window move rates from ~1-3 "moves" (jumpes)
per second for a plain small xterm !!  X11 is hardly useable at all
at this speed -- my old 486 with ET4000 very likely was faster (not joking, really!).

reason for that further slowdown from 10.0 to 10.1 is the following section
in xorg.conf

        Section "Extensions"
          Option       "Composite" "on"
        EndSection

switching that option to "off" made the X11 performace like that from 10.0
(not really good, but at least usable).
Comment 1 Stefan Dirsch 2006-02-06 19:12:08 UTC 
Marcus, could you please disable Composite for the "ati" driver in general? Thanks.
Comment 2 Marcus Schaefer 2006-02-07 09:25:34 UTC 
Composite is now disabled