[ltp] C3 and USB

[Joerg Platte]

Am Mittwoch, 25. Oktober 2006 00:20 schrieb Daniel Skorka:
Hi,

> I have noticed that the synaptics driver causes the same problems on my
> T43, though only when the touchpad is actually being used:
> - run on batteries, unload USB modules -> no noise
> - bring your fingers close to the touchpad -> cue high pitched noise

Hmmm, I switched to console using CTRL-ALT-F1 while X is still running. Hence, 
the touchpad is still in use. Maybe this is caused by the radeon xorg driver. 
I'm using the following options:
       Identifier      "ATI Technologies, Inc. Radeon R250 Lf [FireGL 9000]"
        Driver          "radeon"
        Option          "AGPMode" "4"
        Option          "EnablePageFlip" "on"
        Option          "DynamicClocks" "true"
        Option          "RenderAccel" "true"
        Option          "AllowGLXWithComposite" "true"
        Option          "RenderAccel"   "true"
        Option          "DepthBits" "24"
        Option          "CRT2Position" "Clone"

Since DynamicClocks is on the chip should use some of its power management 
features.

regards,
Jörg