The fact that changing group membership of a user account (see my comment #18 above) sidesteps the problem suggests to me that the preferred solution would be to add the right "udev" rules (in /lib/udev/rules.d or /etc/udev/rules.d) to create the camera's USB device with the correct group membership ("plugdev" group?).
My mother's camera is identified (via the "lsusb" command) as "Kodak Co. Digital Camera", ID 040a:05b8. Is there a comprehensive list of USB camera ID's, and/or a good set of pattern matches for the names of common USB cameras, which could be added to the "udev" rules? Or, alternatively -- since camera support used to work properly in Ubuntu, but apparently broke fairly recently -- did such info exist in the "udev" rules at some time in the past, and was it either intentionally removed (and why?), or did some other change inadvertently take it all away? -- 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