Ralph Little <[email protected]!skelband> wrote: > On Fri, May 21, 2021 at 2:57 PM Perry Hutchison <[email protected]> > wrote: > > However this time it did add a file to /etc/apt/sources.list.d: > > > > $ ll /etc/apt/sources.list.d > > total 12 > > drwxr-xr-x 2 root root 4096 May 21 14:08 ./ > > drwxr-xr-x 7 root root 4096 May 21 10:42 ../ > > -rw-r--r-- 1 root root 154 May 21 14:09 > > sane-project-ubuntu-sane-release-bionic.list > > > > $ cat /etc/apt/sources.list.d/sane-* > > deb http://ppa.launchpad.net/sane-project/sane-release/ubuntu bionic main > > # deb-src http://ppa.launchpad.net/sane-project/sane-release/ubuntu > > bionic main > > > > Does this mean that it worked, despite the error messages? > > > > Yes, it looks like you have two entries though. This one looks weird: > > Err:9 https://launchpad.net/~sane-project/+archive/ubuntu/sane-release > bionic Release > 404 Not Found [IP: 91.189.89.223 443]
I was able to clean that up using the configuration mechanism in Software Updater, and got sane updated. I now get: $ scanimage --version scanimage (sane-backends) 1.0.32; backend version 1.0.32 $ scanimage -L device `pixma:MF4800_192.168.0.10' is a CANON Canon i-SENSYS MF4800 Series multi-function peripheral device `gt68xx:libusb:005:003' is a Plustek OpticSlim M12 flatbed scanner The Canon seems to work properly (as it did using the original version of sane). The Plustek partly works, but I haven't been able to get "good" results: * Using SimpleScan, the parts that should be black come out as gray, even with contrast set to maximum and brightness set as dark as possible. (The white parts are correct.) * Hoping to get rid of the gray, I tried: $ scanimage -d gt68xx:libusb:005:003 --mode=Lineart and got a blank (all white) image. How would I go about finding a scanimage command that passes the same backend settings as SimpleScan is using, as a starting point?
