http://bugs.freedesktop.org/show_bug.cgi?id=26558
Summary: KMS Kills 3D performance with Linux-2.6.33>rc6
Product: DRI
Version: unspecified
Platform: Other
URL: http://www.phoronix.com/forums/showthread.php?t=21930
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM/Radeon
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: lmil...@gmx.net
I am testing the Radeon open source stack with the Kubuntu Lucid (10.04)
current packages. Up to 2.6.33rc6, 3D performance has been good (3D games would
be playable). Starting with rc7, 3D performance is gone: 3D games get less than
a frame per second, even scrolling the mouse pointer is painfully slow.
It appears that KMS was not working up until rc6, and it started working in
rc7. Disabling KMS in rc7 or rc8 solves the performance issue. This could be a
kernel regression, or a problem with KMS in my graphics stack. I'll post more
detailed info below.
Software:
Display Server: X.Org Server 1.7.3.902 (1.7.4 RC 2)
Display Driver: radeon 6.12.99
Kernel: 2.6.33rc7 64bit (from Ubuntu's mainline ppa)
Hardware:
Radeon HD 3450
AMD Phenom X3
--
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.
------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
http://p.sf.net/sfu/solaris-dev2dev
--
_______________________________________________
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel
