I was able to solve this issue by turning of my Nikon D90, closing Rhythmbox and turning my camera back on. Apparently Rhythmbox locks the device (it didn't even get mounted when it was open).
Maybe this helps? -- Error initializing camera: -60: Could not lock the device https://bugs.launchpad.net/bugs/331681 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
