Re: Synaptics Touchpad not detected in 2.6.13-rc2

From: Vojtech Pavlik
Date: Sun Jul 10 2005 - 07:27:17 EST


On Sat, Jul 09, 2005 at 04:27:06PM +0200, Mattia Dongili wrote:
> On Fri, Jul 08, 2005 at 09:29:08AM -0700, Dmitry Torokhov wrote:
> [...]
> > Does it help if you boot with "usb-handoff" kernel option? Another
> > one would be "i8042.nomux". Btw, does your laptop have external
> > PS/2 ports?
>
> Ok, it seems I can now reliably reproduce the wrong detection (by
> removing the power supply before a cold boot) and 'usb-handoff'
> definitely helps.
>
> Oh, and I don't have any extra ps/2 port available.

Since we (SUSE, many thanks to Andi Kleen and Andrea Arcangeli) have
already fixed most of the breakage "usb-handoff" causes on certain
(nvidia, etc) boxes, because of unusual memory layouts and iounmap()
that can't cope with that, I believe it'd be a good idea to enable
"usb-handoff" on vanilla kernels by default as well - SUSE already has
it enabled for more than a year.

--
Vojtech Pavlik
SuSE Labs, SuSE CR
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/