how do unbind ThinkPad touchpad without unbinding trackpoint?

how do unbind ThinkPad touchpad without unbinding trackpoint?

[Bruno Dantas]

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

Re: how do unbind ThinkPad touchpad without unbinding trackpoint?

[Bruno Dantas]

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
>

how do unbind ThinkPad touchpad without unbinding trackpoint?

[Bruno Dantas]

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