[solved] Re: Synaptics touchpad not found with plugged-in USB mouse

[Tobias Kraus <kraus.mailingliste.01@gmx.de>]

Am Dienstag, 12. Oktober 2004 14:35 schrieb Mattia Dongili:
> On Mon, Oct 11, 2004 at 01:54:47PM +0200, Tobias Kraus wrote:
> [...]
>
> > unfortunately this is _not_ a typo :-(
> > Correct me if I'm wrong, but I _think_ the touchpad is is
> > deactivated if at a certain point of the POST the mouse is found
> > by the BIOS. After that the BIOS does not change the state of the
> > tp any more. Actually, the problem exists if I plug the mouse in
> > _after_ the kernel is loaded by grub and decompressed.
>
> take a look at this thread and follow the links to the lkml for a
> full explanation:
>
> http://lists.debian.org/debian-laptop/2004/09/msg00277.html

Hi Mattia, hi all,
it actually _is_ a bios problem. If I deactivate "USB BIOS 
Support" (no "USB legacy support" in my BIOS as mentioned in the 
tread) I can leave the mouse plugged in during boot. But then I 
cannot use the mouse in the BIOS. The problem was that the BIOS 
"help" only said sth about deactivating boot from USB diskette/CDROM. 

My configuration for the archive:
- Disable "USB BIOS Support"
- psmouse compiled in the kernel (2.6.4)
- uhci/ehci compiled as module
- no hotplug (as it is started after init it should not matter if it 
runs - at that point psmouse knows about the touchpad)

Thanks to all for helping!

Tobias

>
> hth
> --
> mattia
>
> :wq!

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