Judging by the age of this bug and the number of people subscribed, this page seems to have become a forum and not a current relevant bug report. The release 17.10 this bug was about is no longer supported anyway.
Anyone experiencing problems please open a new bug of your own by running: ubuntu-bug xorg ** Changed in: gnome-power-manager (Ubuntu) Status: Confirmed => Invalid ** Changed in: gnome-shell (Ubuntu) Status: Incomplete => Invalid ** Changed in: mutter (Ubuntu) Status: Incomplete => Invalid ** Changed in: nvidia-graphics-drivers-384 (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-graphics-drivers-384 in Ubuntu. https://bugs.launchpad.net/bugs/1720438 Title: brightness control broken nvidia Status in gnome-power: Confirmed Status in gnome-power-manager package in Ubuntu: Invalid Status in gnome-shell package in Ubuntu: Invalid Status in mutter package in Ubuntu: Invalid Status in nvidia-graphics-drivers-384 package in Ubuntu: Invalid Bug description: Ubuntu 17.10 beta 2 Nvidia 310M, 340.x official driver installed with Additional Drivers program The brightness control built into the laptop (Dell Vostro 3300) isn't changing the brightness. Normally I can use Fn + Up/Down arrow keys to change the brightness. The brightness control works fine in Ubuntu 16.04 with the same driver series. I don't know if this is a GNOME 3.26 bug but it's likely as I'm having the exact same problem with Fedora 26 on this laptop. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-power/+bug/1720438/+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