Re: USB trackpad: dim and wakeup

[Matthias G. <mat...@us...>]

On Wed, 03 May 2006 21:18:45 +0200
Magnus Rosenbaum <cmr...@fo...> wrote:

> The trackpad does not reset the dim timer. So sometimes I have to press a
> key to make the screen go bright again. This happens only when used with
> the synaptics driver in X11. Without the synaptics driver the dim timer
> works alright.

As Kristian already explained, this is a problem caused by the
synaptics X11 driver. There are other programs out that filter mouse
events (mouseemu for instance) and need block those input devices for
exclusive use. But all this programs create a new virtual input device
and forward unused events to it, so that other programs (like
pbbuttonsd) will miss only some mouse events but not the whole device.
The synaptics X11 driver behave very uncooperative here.

> Just the other way round: Touching the trackpad or pressing the trackpad
> button wakes the iBook from sleep. So if I grab the sleeping iBook with
> closed lid right above the trackpad, the trackpad button is pressed by the
> bending display and the iBook wakes up. I compared this with my G3 iBook
> and there touching the trackpad does not cause it to wake up.

This is a hardware issue and can't be solved or worked around by
software (except Apple has implemented some hardware registers allowing
to configure this behaviour, but I don't know about such registers.)

  Best Regards
   Matthias