Public bug reported: I have a Brother MFC-7420 printer/scanner combination device. It was working when I had Ubuntu 12.04 LTS installed. I have installed the Brother drivers from the Brother website (brscan2 version 0.2.5-1).
When upgrading to Ubuntu 14.04 LTS scanning stopped working as a normal user, neither Simple Scan nor Xsane found the scanner. When launching as root, both were working (e.g. sudo simple-scan). The problem was related to the scanner device (/dev/usb/lp0) belonging to the group lp, with normal users having no access permissions to the device file. When I added my user account to the lp group, it solved the issue. Curiously, sane-find-scanner still cannot find my scanner, but scanimage -L works, as well as simple-scan and xsane. The same problem has been discussed here, concerning Ubuntu 13.10 (I'm running 14.04 LTS 64bit): http://ubuntu.5.x6.nabble.com/xsane-and-simple-scan-only-working-as-root-td5044224.html ** Affects: simple-scan (Ubuntu) Importance: Undecided Status: New ** Description changed: - I have a Brother MFC-7420 printer/scanner combination devide. It was + I have a Brother MFC-7420 printer/scanner combination device. It was working when I had Ubuntu 12.04 LTS installed. I have installed the Brother drivers from the Brother website (brscan2 version 0.2.5-1). When upgrading to Ubuntu 14.04 LTS scanning stopped working as a normal user, neither Simple Scan nor Xsane found the scanner. When launching as root, both were working (e.g. sudo simple-scan). The problem was related to the scanner device (/dev/usb/lp0) belonging to the group lp, with normal users having no access permissions to the device file. When I added my user account to the lp group, it solved the issue. Curiously, sane-find-scanner still cannot find my scanner, but scanimage -L works, as well as simple-scan and xsane. The same problem has been discussed here, concerning Ubuntu 13.10 (I'm running 14.04 LTS 64bit): http://ubuntu.5.x6.nabble.com/xsane-and-simple-scan-only-working-as-root-td5044224.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1376300 Title: Scanning works only as root after upgrade to 14.04 LTS, fixable by adding user to group lp To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/1376300/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs