I figured out an easy way to resolve this when it happens. I had my laptop's touchpad disabled in the BIOS (since I would often accidentally hit the touchpad while typing). I re-enabled the touchpad in the BIOS, and now when things get into the state described above (left mouse button appears permanently depressed) I can cure things by pressing the left button on the touchpad.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1040844 Title: Left Mouse Button Sometimes Gets Stuck in Unity (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1040844/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs