Re: Synaptics Touchpad not detected in 2.6.13-rc2

[Mattia Dongili <malattia@gmail.com>]

On Fri, Jul 08, 2005 at 09:29:08AM -0700, Dmitry Torokhov wrote:
> Mattia Dongili <malattia@gmail.com> wrote:
[...]
> I see several possible issues:
> 
> > PNP: No PS/2 controller found. Probing ports directly.
> 
> Does it show this line when touchpad is being detected? 

yes

> Do you have PNPACPI turned on?

# CONFIG_PNPACPI is not set

> > i8042.c: Detected active multiplexing controller, rev 5.3.
> 
> Revision 5.3 is suspicious. The last posted one is 1.1
> Again, when touchpad is detected, does it show this or 1.{0|1}?

nothing at all, no multiplexing controller and most important only 2
ports

PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice

> > serio: i8042 AUX0 port at 0x60,0x64 irq 12
> > serio: i8042 AUX1 port at 0x60,0x64 irq 12
> > serio: i8042 AUX2 port at 0x60,0x64 irq 12
> > serio: i8042 AUX3 port at 0x60,0x64 irq 12
> > serio: i8042 KBD port at 0x60,0x64 irq 1
> > mice: PS/2 mouse device common for all mice
> 
> And now the real problem:
> 
> > drivers/input/serio/i8042.c: 91 -> i8042 (command) [220803]
> > drivers/input/serio/i8042.c: f2 -> i8042 (parameter) [220803]
> > drivers/input/serio/i8042.c: fa <- i8042 (interrupt, KBD, 1) [220806]
> 
> We are trying to talk to AUX port but KBC replies as if data
> is coming from the keyboard port.
> 
> 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?

Well it's pretty hard to say currently I've only been able to trigger
this problem only twice in at least 6 cold boots.
Will try later anyway :)

As said, I remember having this problem in the past, here's the thread:
http://marc.theaimsgroup.com/?l=linux-kernel&m=108211185919825&w=2
it seems we already talked about it!

-- 
mattia
:wq!