I found this troubleshooting guide, I tried doing it but I don't understand what xev is supposed to do. Maybe it could help? https://wiki.ubuntu.com/Hotkeys/Troubleshooting
-- Dell Studio 1555: cannot change display brightness after a while, other hotkeys and ACPI stuff begin to fail https://bugs.launchpad.net/bugs/392812 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
