I have tracked the issue down to an upstream issue with sane-backends, with a fix here:
https://gitlab.com/sane-project/backends/-/issues/271 This is not a simple-scan bug. ** Bug watch added: gitlab.com/sane-project/backends/-/issues #271 https://gitlab.com/sane-project/backends/-/issues/271 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to simple-scan in Ubuntu. https://bugs.launchpad.net/bugs/1327801 Title: Bightness and contrast settings have no effect Status in simple-scan package in Ubuntu: Triaged Bug description: Scanner: Canon, Inc. CanoScan N1240U/LiDE 30 Ubuntu 14.04, Simple Scan version 3.12.1. Adjusting the settings of brightness and contrast has no effect. With the default for scanning in "text" mode being too bright, this makes "Simple Scan" in text mode unusable for me. Brightness and contrast settings don't work in "foto" mode, too. But the default of the foto mode is usable. Brightness setting does work in program "Skanlite". To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/1327801/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
