[ltp] Power drain workaround with radeonfb module?

[Felix E. Klee]

At Sun, 28 Oct 2007 08:45:33 -0700,
Dan Sawyer wrote:
> In 2.6.20 kernels without drm comfigured radeonfb loaded as a
> module. I then moved up levels and configured drm - the result was
> radeonfb seemed to be preempted by another driver and would not load.

Well, that's different here: radeonfb and drm seem to peacefully coexist
in the modules list.  However, I didn't yet investigate if drm is
already loaded after my system was started (without X), or if it gets
loaded only after I run "startx".

My problem - as said before - is that, even with "radeonfb" loaded, the
power drain issue persists.

> I then moved up to 2.6.23.1 and configured radeonfb into the
> kernel. With this level and configuration suspend works with about 500
> mw (however glxgears is only running at about 1/3 speed) The
> difference shows up between 3d rendering (glxgears) and suspend power.

What values do you get with glxgears, and on what GPU (yes, I know that
glxgears is not a decent benchmark)?
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Felix E. Klee
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