Now with :
- xserver 1.7.4
- 2.6.33rc7 with KMS
- libdrm, mesa, xf86-video-ati from git
2D and 3D are back OK on an R700 (HD4650 mobility (M98))
However I see 2 performance issues :
- glxgears tops at 1450fps (compared to ~2500fps without KMS)
- GL vsync is broken, ie visual tearing especially at playing large videos
(XV or OGL) with Kwin compositing enabled
Any thoughts on this ?
On Sat, 30 Jan 2010 15:35:44 +0100 (CET)
"Damien Mir" <mail...@mirabel-sil.com> wrote:
I just tried KMS with "radeon" driver, and 2D seems notably slow.
Widgets takes time to draw, scrolling in Dolphin or Firefox lags, as
if some 2D acceleration was not working alright.
I use radeon KMS on an R600 (HD 3870) and all works really well. 2D as
well as 3D (glxgear, tuxracer, nexuiz). Kernel is 2.6.32 and
drm, mesa, xf86-video-ati are latest git HEAD. Maybe you need a newer
version of the ati driver.