This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1866994 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1866994 Title: Screen backlight control not working on Dell XPS 15 7590 Status in linux package in Ubuntu: Incomplete Bug description: I tried running Ubuntu 20.04 (ISO downloaded on March 10th) on a Dell XPS 15 7590 with the 4k LED display (*not* OLED). The screen backlight control keys seem to be registered but the brightness remain unchanged. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1866994/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp