A bug report was filed in 2010, supposedly fixed in 2018 and patched in 2019 in `xrandr` version `1.5.1`. I tried compiling `1.5.1` in Ubuntu but it didn't seem to have been fixed yet. Documented in this Ask Ubuntu Q&A: [When will xrandr version 1.5.1 be available in Ubuntu?](https://askubuntu.com/questions/1192154/when-will-xrandr- version-1-5-1-be-available-in-ubuntu)
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1444880 Title: xrandr report inverted gamma values Status in xorg package in Ubuntu: Confirmed Bug description: $ xrandr --output VGA1 --gamma 1:1:1.7 $ xrandr --verbose | grep -iE '(gamma|bright)' Gamma: 1.0:1.0:1.7 Brightness: 1.0 Gamma: 1.0:1.0:0.59 Brightness: 1.0 $ xrandr --output VGA1 --gamma 1:1:.6 $ xrandr --verbose | grep -iE '(gamma|bright)' Gamma: 1.0:1.0:1.7 Brightness: 1.0 Gamma: 1.0:1.0:1.7 Brightness: 1.0 As you can see in output of commands above, "Gamma" values printed by xrandr --verbose are exactly the invert of the values set: 1/<value set>... Appart for value 1.0 which is correct. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1444880/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
