On 11/22/2010 07:02 PM, Robin Atwood wrote:
I have just gone through the steps to use the Radeon KMS driver on my old
laptop which has an RV350 [Mobility Radeon 9600 M10]. Everything seems to work
all right and I get the right "render string" from glxinfo. However, I thought
it might enable compositing to work on the KDE4 desktop but there is no
change. What's more, glxgears used to give about 2200 FPS but now it's 50! So
have I been wasting my time?
You have to enable compositing yourself in System Settings.
KMS means you're using DRI2 now, which results in a VSync'ed OpenGL
rendering. Though I'd expect 60FPS because of VSync, not 50 :-P
One other thing you should do is to enable the "gallium" USE flag and
re-emerge Mesa. Then switch to the Gallium driver using:
eselect mesa r300 gallium
Because that driver is the recommended one for your hardware (R300).
The classic driver should be avoided.
