A recent 'apt upgrade' caused me to hit this bug on my Ubuntu-Mate 16.04 installation. Looking over my apt history, I see that the ibus package was installed about the time the problem started to show up.
Installing ibus-gtk and ibus-gtk3 did not resolve the issue, though stopping the ibus daemon does appear to work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1306500 Title: some keys stopped working: left & right arrows, backspace To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnucash/+bug/1306500/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs