Could you also try use `nouveau.modeset=0` instead of nomodeset and remove acpi_backlight as well? The full kernel parameters would then become:
BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic root=UUID=4aaeabb9-cce5-41e4-8dfd-2a30aaf8d649 ro quiet splash nouveau.modeset=0 vt.handoff=1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824472 Title: Brightness issue To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824472/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
