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I use a Lenovo Thinkpad Bluetooth Laser Mouse with my Thinkpad x130e and Quantal. It works without problems as long as the notebook is on AC-Power. When it runs on battery the mouse works for some minutes or half an hour an suddenly it stops working and I must reboot to get it work again.

What is different with the bluetooth connection when running on battery and can it be changed? I guess it must have something to do with power saving functions.

Thanks for your help.

PS: I just found /usr/lib/pm-utils/power.d/usb_bluetooth.sh.
This looks as if there could be the solution for the problem but I'm not good at reading such scripts.

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2 Answers 2

Well, to disable this script, disabled the execute bit, using:

chmod -x /usr/lib/pm-utils/power.d/usb_bluetooth.sh
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Thanks for the hint. Had you a look at the skript? When I disable it as you dicribed will it always stay on one of it's states. Should I plug in AC and then disable it to prevent it from switching or doesn't it matter? –  Phil Nov 12 '12 at 23:01

Maybe this bug is similar to the following:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1072234

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1065157

Something I've noticed is if we switch between sessions, mouse gets back to work fine. Try it:

  1. Make sure mouse stops to work
  2. Switch to another session performing: ALT + F1
  3. Then, switch back to GUI session: ALT + F7

Mouse should work again. (try it more than once if it doesn't work...)

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