Re: acpi breaking synaptics mouse support on Acer Travelmate 260

[Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>]

On Wed, 13 Aug 2003, Santiago Garcia Mantinan wrote:
> I recently (the 11th) posted on lkml a message with subject "2.6.0test3
> problems on Acer TravelMate 260 (ALSA,ACPIvsSynaptics,yenta)" on which I
> commented all the major problems I was seing on this machine.
>
> The machine is a PIII mobile at 1GHz with intel chipset (i82801+i830M) 256
> Megs of RAM the mouse is a Synaptics touchpad. The problem is that the mouse
> gets crazy (if using the normal mouse driver) or looses sync (if using the
> synaptics driver). I have looked at the interrupts happening when one moves
> the mouse and the number is much higher (from 3 to 10 times) in 2.6 compared
> with 2.4, also when one stops moving the mouse in 2.6 the interrupts keep on
> happening for half a second or so, while it stops inmediately in 2.4.

I don't use linux but perhaps there is an interrupt sharing problem that
appears when interrupts are routed differently (as they probably are
between 2.4 and 2.6).

-Nate


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