this acpi_backlight=vendor fixed it for me, but I think this is no simple for basic users
-- brightness changes twice when using hotkeys https://bugs.launchpad.net/bugs/257827 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
