Please make sure you are running gnome-control-center 1:43~rc-1ubuntu1. That update was pushed today and should fix this issue.
In the future, please use this command to report a bug like this: ubuntu-bug gnome-control-center It will provide additional info like the specific versions installed on your computer and it helps people better handle your bug report. For instance, you never said what version of Ubuntu you are using. If you had used that command, it would have been more clear. ** Changed in: gnome-control-center (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1988889 Title: Screen blank timeout not adjustable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1988889/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs