ubuntu-x-swat team mailing list archive

[Matthieu Marechal <725233@xxxxxxxxxxxxxxxxxx>]

Actually the problem has become worse for me in Natty, as 
the trackpad which worked under in Maverick (at least scrolling did and 
pasting using simultaneously clicking both mouse buttons), 
while it doesn't anymore in Natty.

I also have an ALPS trackpad and it is also detected as
such in Natty:

 xinput --list

⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS GlidePoint                	id=13	[slave  pointer  (2)]
⎜   ↳ PS/2 Mouse                              	id=12	[slave  pointer  (2)]

However, as can be seen in the above output, it is also detected as 
PS/2 Mouse and this takes precedence, apparently.
I tested which driver was used by

xinput --set-prop 'PS/2 Mouse' 'Device Enabled' 0

which disables the trackpad, while the equivalent for the AlpsPS/2 doesn't do anything.
The following shows that the PS/2 Mouse driver is loaded first:

dmesg | grep 'PS/2'

[    1.541008] i8042: PNP: PS/2 Controller [PNP0303:KBC,PNP0f13:MOUE] at 0x60,0x64 irq 1,12
[    1.550441] mousedev: PS/2 mouse device common for all mice
[   13.646919] input: PS/2 Mouse as /devices/platform/i8042/serio1/input/input6
[   13.665067] input: AlpsPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input8

Does the original bug reporter also see the same output as I did, or is
mine a different bug?

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https://bugs.launchpad.net/bugs/725233

Title:
  Alps touchpad improperly detect as PS2 Generic Mouse. No scroll
  function at all