Hi. I've been following the articles covering the Free driver development, great stuff.
I recently upgraded from a 9250 to an x800 (after issues with the old AGP motherboard...). I've got int working nicely, except that glxgears runs at ~70% CPU and ActionCube / Sauerbraten run so slow they are unplayable. DRI is enabled, and I've tried numerous xorg.conf arrangements.
Is there anyone who uses the Free driver and an x800 who can give me some advice and a peak at their xorg.conf?
Using Mesa 6.5.1, Xorg 7.1, radeon driver on fedora core 6.
Welcome to the forums and hope you're here to stay on the forums
Have you looked at http://dri.freedesktop.org/wiki/ATIR...33fee7003e858d for trying any of those xorg.conf options? I have used several R300 components under Linux, but I am trying to remember if I ever ran it with Sauerbraten. I know last year there were longstanding bugs with fglrx and Cube/Sauerbraten, but I do not know what problems exist for the open-source driver.
I tried those options a while ago. Some things improve performance, some degrade it, but always it runs at about 70% CPU just doing glxgears.
Is this normal or is it dropping something back to software acceleration?
It's normal. As long as in games you are having acceleration, you should be set. Even when I run glxgears with the fglrx drivers the CPU will spike to full load as glxgears is really CPU dependent and really doesn't do much for modern GPUs.
Just so people know, it looks like some of the functions for openGL haven't been implemented. A quick example is that some openGL screen savers are smooth as anything, while others are crippled and barely run.
I'll try updating mesa to the latest git and post back any results.