Comment 6 for bug 1080787

Thomas, thank you for the quick response.

On 12.04.2013 17:27, Thomas E. Horner wrote:
> of cause the output and outcome is the same if i enter the commands on the "real" console.

No, this is NOT of course. You can be sure I would not have asked otherwise. Scanner permissions for sane devices have been a long-standing issue and has basically always been broken (at least that's my experience) just in different ways in different releases. You can have a look at bug 236956 to learn that it matters a lot these days whether you are actually logged in to the machine and how you are logged in.

> sudo scanimage -L
> No scanners were identified. If you were expecting something different,
> check that the scanner is plugged in, turned on and detected by the
> sane-find-scanner tool (if appropriate). Please read the documentation
> which came with this software (README, FAQ, manpages).

Thank you for that information. we can rule out a permissions problem, then. Maybe you can compare /lib/udev/rules.d/40-libsane.rules between precise and quantal to see if you can spot any relevant difference.