How can I modify the screen brightness in Ubuntu 14.04 LTS ? In the Systems Settings -> Brightness & Lock screen, all I see are options related to the screen saver, but nothing for changing the current screen brightness. Shouldn't there be a scroll bar for brightness level in this window ?

enter image description here


Finally found the issue... When this happened I had booted Ubuntu in recovery mode. Some options are not available in recovery mode, such as adjusting screen brightness and using multiple monitors.

When I booted back in normal mode, the screen brightness adjustment settings were available.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.