I was able to fix the error by installing some libwayland packages: sudo apt-get install libwayland-dev-lts-trusty libwayland-egl1-mesa- lts-trusty
Cheese was working fine for me a few weeks ago, so I'm not sure how these became uninstalled or why the cheese package didn't require them. My only guess is that I had been using the Nouveau video driver and switched to Nvidia because Nouveau doesn't support suspend/resume on my laptop. Now when I launch Cheese, it runs, but reports: There was an error playing video from the webcam -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1290099 Title: libwayland-egl.so error for Cheese (wont start) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cheese/+bug/1290099/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs