Re: how do unbind ThinkPad touchpad without unbinding trackpoint?

["Bruno Dantas" <kernel@dantas.airpost.net>]

The command should have been this:

# echo serio1 >/sys/bus/serio/drivers/psmouse/unbind

Sorry about the typo (missing stdout redirect).

The above command *completely* disables the touchpad as desired, but has the undesired side effect of unbinding serio2 (which disables the trackpoint).

-Bruno


On Mon, Nov 18, 2019, at 6:50 PM, Bruno Dantas wrote:
> I have a T400 laptop running Devuan ASCII with linux 4.16.2
> 
> Please, this laptop's touchpad generates input "noise" while the lid is 
> shut, which causes applications that should run while system is idle 
> (e.g., xscreensaver) not to run.
> 
> I've tried to disable the touchpad via xinput or synaptics, but it does 
> not remedy the issue. The only remedy I've found is to unbind the 
> touchpad with this command:
> 
> # echo serio1 /sys/bus/serio/drivers/psmouse/unbind
> 
> Unfortunately, the above command also disables my trackpoint ("nipple 
> mouse") which I need to remain functional.
> 
> Please, how do I unbind the touchpad without unbinding the trackpoint?
> 
> Thanks,
> Bruno "GNUser"
> 
> P.S. This may be useful:
> 
> bruno@thinkpad:~$ cat /proc/bus/input/devices
> ---snip---
> I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
> N: Name="SynPS/2 Synaptics TouchPad"
> P: Phys=isa0060/serio1/input0
> S: Sysfs=/devices/platform/i8042/serio1/input/input6
> U: Uniq=
> H: Handlers=mouse0 event5 
> B: PROP=1
> B: EV=b
> B: KEY=420 30000 0 0 0 0
> B: ABS=11000003
> 
> I: Bus=0011 Vendor=0002 Product=000a Version=0000
> N: Name="TPPS/2 IBM TrackPoint"
> P: Phys=synaptics-pt/serio0/input0
> S: Sysfs=/devices/platform/i8042/serio1/serio2/input/input7
> U: Uniq=
> H: Handlers=mouse1 event6 
> B: PROP=21
> B: EV=7
> B: KEY=70000 0 0 0 0
> B: REL=3
>