Bug 148475

Summary: xorg.conf -- very slow X11 on ATI Rage XL
Product: [openSUSE] SUSE Linux 10.1 Reporter: Harald Koenig <koenig>
Component: X.OrgAssignee: Marcus Schaefer <ms>
Status: RESOLVED FIXED QA Contact: Stefan Dirsch <sndirsch>
Severity: Normal    
Priority: P5 - None CC: eich, sndirsch
Version: Beta 3   
Target Milestone: ---   
Hardware: Other   
OS: Other   
Whiteboard:
Found By: Other Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---

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