I've also seen this a couple times. Much like the Spanish Inquisition, I never expect it. I can't reproduce when it happens, but I have found that logging out and back in my account will make the numbers reappear. Ironically, the first time I noticed the problem, I tried to take a screenshot and it just started working again. Maybe super + sysrq does something?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/772951 Title: Super + Numeric shortcuts don't always work -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs