[sane-devel] Canon LiDE 300 on Raspbian - No scanners were identified.

[Perry Hutchison]

Jakub Jakubowski <jakub.k.jakubowski at gmail.com> wrote:
> Sane-find-scanner  finds the device, but scanimage -L does not
> (both ran as sudo).

One approach which sometimes helps figure out what is going on --
with any program, not just scanimage -- is to run the troublesome
program under truss(1) or strace(1).