I seem to be affected by a similar bug. Seemingly randomly, my touchpad on a Lenovo W520 stops working. The red nub keeps working, however. Restarting sometimes fixes it, but sometimes it doesn't. I can use fn+f7 to turn off my red nub, but it has no effect on my touchpad. I don't use two finger scrolling. I do use horizontal scrolling. I haven't tried any fixes mentioned above, or in this (http://bit.ly/qx2da3) thread, because it is working right now. The only fix I've tried is:
That was not effective, nothing changed. I have disabled the function that disables the touchpad while typing, to see if that helps. Next time it breaks, I will start trying fixes, and report back.
I seem to be affected by a similar bug. Seemingly randomly, my touchpad on a Lenovo W520 stops working. The red nub keeps working, however. Restarting sometimes fixes it, but sometimes it doesn't. I can use fn+f7 to turn off my red nub, but it has no effect on my touchpad. I don't use two finger scrolling. I do use horizontal scrolling. I haven't tried any fixes mentioned above, or in this (http:// bit.ly/ qx2da3) thread, because it is working right now. The only fix I've tried is:
gconftool-2 --set --type boolean /desktop/ gnome/periphera ls/touchpad/ touchpad_ enabled true
That was not effective, nothing changed. I have disabled the function that disables the touchpad while typing, to see if that helps. Next time it breaks, I will start trying fixes, and report back.
This looks like a similar bug to: http:// bit.ly/ nDr6KB, http:// bit.ly/ qNZE1h, http:// bit.ly/ qafNGG, and maybe others. I'm looking through launchpad at related bugs now.