Thanks for the bug report.
Those gamma commands only support Xorg, but you are using a Wayland
session without any Xorg running. To use a Xorg session you need to log
out and then select 'Ubuntu on Xorg' on the login screen.
** Changed in: xorg (Ubuntu)
Status: New => Invalid
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1970523
Title:
[Mesa Intel® HD Graphics 3000 (SNB GT2)] Cannot able to Change gamma
on Inspiron 3520.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1970523/+subscriptions
_______________________________________________
Mailing list: https://launchpad.net/~ubuntu-x-swat
Post to : ubuntu-x-swat@lists.launchpad.net
Unsubscribe : https://launchpad.net/~ubuntu-x-swat
More help : https://help.launchpad.net/ListHelp
