I see now that the change which is said to cause the issue was committed on 2019-10-17 while 1.0.29 was released on 2020-02-02. So yes, it's probably a mistake in the issue description.
I tried to apply the change proposed in the upstream issue, but it does not compile: SCAN_FLAG_DISABLE_GAMMA not declared. Can you please let us know exactly how you applied it. Did you possibly compile without warnings? -- 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 sane-backends: Unknown Status in sane-backends package in Ubuntu: Confirmed Status in simple-scan package in Ubuntu: Invalid 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/sane-backends/+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
