RV100 / 7000VE very slow?

Alex Deucher alexdeucher at gmail.com
Wed Jan 17 19:09:39 PST 2007

On 1/17/07, Roland Scheidegger <sroland at tungstengraphics.com> wrote:
> Christian Brandt wrote:
> > Today I installed Ubuntu 6.06 on an IBM 346 server which features a
> > RV100 / 7000VE / 16MB onboard-gpu running at 1280x1024/24bit/60hz. I
> > have to work for quite some days directly at this system and also in the
> > future so I have been horrified about the very low performance of the
> > gpu: Dragging windows lags around half a second, clearing the screen
> > takes around one second, even while typing inside a terminal window I am
> > faster than the gpu.
> Are you using cp accel or mmio? You need to load dri/drm for the former,
> which typically feels a bit faster. 16MB should just be enough for this
> to work (note though that you won't really have enough video ram for
> offscreen pixmaps).
> I'm not exactly sure of the specifications of this server, but I think
> it may use a 32bit only DDR interface for the graphic chip (no idea
> about clock), should be mentioned in the xorg log file. That could lower
> performance quite a bit probably.

I think the server based radeons are pretty well crippled.  Definitely
no 3D and I'm not even sure the CP is functional.


> Roland

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