Synaptics probe problem on Acer Travelmate 3004WTMi

Synaptics probe problem on Acer Travelmate 3004WTMi

[Thomas Sailer]

Hi Vojtech,

I've got a problem with my Acer Travelmate 3004WTMi Laptop: vanilla 2.6
does not detect the synaptics touchpad.

The problem lies within psmouse_probe: after the PSMOUSE_CMD_GETID
command, param[0] contains 0xfa, and not one of the expected values. If
I just ignore this and continue, the synaptics pad is detected and
everything works ok.

Tom


static int psmouse_probe(struct psmouse *psmouse)
 642 {
 643         struct ps2dev *ps2dev = &psmouse->ps2dev;
 644         unsigned char param[2];
 645 
 646 /*
 647  * First, we check if it's a mouse. It should send 0x00 or 0x03
 648  * in case of an IntelliMouse in 4-byte mode or 0x04 for IM
Explorer.
 649  * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and
subsequent
 650  * ID queries, probably due to a firmware bug.
 651  */
 652 
 653         param[0] = 0xa5;
 654         if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
 655                 return -1;
 656 
 657         if (param[0] != 0x00 && param[0] != 0x03 &&
 658             param[0] != 0x04 && param[0] != 0xff)
 659                 return -1;
 660 

Re: Synaptics probe problem on Acer Travelmate 3004WTMi

[Dmitry Torokhov]

On 7/13/05, Thomas Sailer <sailer@sailer.dynip.lugs.ch> wrote:
> Hi Vojtech,
> 
> I've got a problem with my Acer Travelmate 3004WTMi Laptop: vanilla 2.6
> does not detect the synaptics touchpad.
> 
> The problem lies within psmouse_probe: after the PSMOUSE_CMD_GETID
> command, param[0] contains 0xfa, and not one of the expected values. If
> I just ignore this and continue, the synaptics pad is detected and
> everything works ok.
> 

Hi,

Could you please provide us with debug dmesg - just boot with
i8042.debug on kernel command line.

Thanks!

-- 
Dmitry

Re: Synaptics probe problem on Acer Travelmate 3004WTMi

[Vojtech Pavlik]

On Wed, Jul 13, 2005 at 12:32:27PM -0500, Dmitry Torokhov wrote:
> On 7/13/05, Thomas Sailer <sailer@sailer.dynip.lugs.ch> wrote:
> > Hi Vojtech,
> > 
> > I've got a problem with my Acer Travelmate 3004WTMi Laptop: vanilla 2.6
> > does not detect the synaptics touchpad.
> > 
> > The problem lies within psmouse_probe: after the PSMOUSE_CMD_GETID
> > command, param[0] contains 0xfa, and not one of the expected values. If
> > I just ignore this and continue, the synaptics pad is detected and
> > everything works ok.
> > 
> 
> Hi,
> 
> Could you please provide us with debug dmesg - just boot with
> i8042.debug on kernel command line.
 
Also try the usual options ("i8042.nomux=1" and "usb-handoff"). One or
both may make the problem disappear.

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR

Re: Synaptics probe problem on Acer Travelmate 3004WTMi

[Thomas Sailer]

On Wed, 2005-07-13 at 20:38 +0200, Vojtech Pavlik wrote:

> Also try the usual options ("i8042.nomux=1" and "usb-handoff"). One or
> both may make the problem disappear.

usb-handoff did it, thanks a lot!

Tom

Re: Synaptics probe problem on Acer Travelmate 3004WTMi

[Andrey Panin]

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On 199, 07 18, 2005 at 07:54:16AM +0200, Thomas Sailer wrote:
> On Wed, 2005-07-13 at 20:38 +0200, Vojtech Pavlik wrote:
> 
> > Also try the usual options ("i8042.nomux=1" and "usb-handoff"). One or
> > both may make the problem disappear.
> 
> usb-handoff did it, thanks a lot!

IIRC there was a patch which used DMI to automatically enable USB handoff
on machines that need it. Was it rejected ?

-- 
Andrey Panin		| Linux and UNIX system administrator
pazke@donpac.ru		| PGP key: wwwkeys.pgp.net

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