Observe the issue with the command - "watch cat /proc/interrupts" . When the issue happens, the interrupt count of i8042 does not change, i.e., i8042 does not receive any interrupt. It should be a hardware issue.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1316954 Title: [Dell Inspiron 3137] Alt key does not work every time on this system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1316954/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs