Trackpoint sensitivity returns to default when resuming from suspend

[jblackhall]

http://www.thinkwiki.org/wiki/How_to...the_TrackPoint

[undoIT]

I have tried every single method that is available online to fix this in Kubuntu Lucid with ThinkPad T410s so that the sensitivity is customized, but nothing works. I have tried udev, sysfsutils, rc.local and the script posted by vukasin0. Forget about suspend, it doesn't even work after reboot. This is crazy.

Is there any way to get Ubuntu Lucid to stop resetting trackpoint sensitivity after every reboot?

[pgriffiths]

You should be able to set speed and sensitivity by adding a rule in /etc/udev/rules.d. However due to a kernel bug (http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=549379), the rule gets triggered before the speed or sensitivity attributes exist. As a work around, you can add a WAIT_FOR condition. I set the speed and sensitivity using /etc/udev/rules.d/trackpoint.rules with a single line:

SUBSYSTEM=="serio", DRIVERS=="psmouse", ATTR{description}=="Synaptics pass-through", WAIT_FOR="/sys/devices/platform/i8042/serio1/serio2/sensitivity" ATTR{sensitivity}="220", ATTR{speed}="160"

You might also add a WAIT_FOR the speed attribute, but waiting on one works fine for me.

[lophiomys]

Kubuntu 10.04 LTS all updates on a Thinkpad T42p 2373-KYG, with UltraNav

I've tried it as described:
If you don't look out carefully for the correct device path, and test as advertised with

sudo udevadm test /sys/devices/platform/i8042/serio1

you are getting an error,
with my configuration, it should be

hal@T42pUXGA:~$ sudo udevadm test /sys/devices/platform/i8042/serio1/serio2

(note the serio2 at the end)


Trivial but still a pitfall.
HTH

[McBraid]

I'm having a problem on a T410i running Ubuntu 10.10. The WAIT_FOR code is working on startup, setting the speed and sensitivity according to the values in trackpoint.rules. However it is not applied after suspend.

I tried adding another WAIT_FOR for speed by writing:

SUBSYSTEM=="serio", DRIVERS=="psmouse", ATTR{description}=="Synaptics pass-through", WAIT_FOR="/sys/devices/platform/i8042/serio1/serio2/sensitivity", WAIT_FOR="/sys/devices/platform/i8042/serio1/serio2/speed" ATTR{sensitivity}="220", ATTR{speed}="160"

Did not work.

So i tried to replace sensitivity with speed:

SUBSYSTEM=="serio", DRIVERS=="psmouse", ATTR{description}=="Synaptics pass-through", WAIT_FOR="/sys/devices/platform/i8042/serio1/serio2/speed" ATTR{sensitivity}="220", ATTR{speed}="160"

Did not work.

Am I doing something wrong here or is this fix not working in 10.10?

[McBraid]

Sorry, double post.

[pgriffiths]

Check whether udevadm test /sys/devices/platform/i8042/serio1 (substituting your appropriate path) corrects the problem after suspend. WAIT_FOR has a 10s timeout period which might not be enough. (http://www.kernel.org/pub/linux/util...udev/udev.html) I have occasionally seen the setting fail to hold, possibly due to a timeout. However, I have not tried this on 10.10.