I tried the fix for a different problem in this link randomly and it worked for me.
https://forums.developer.nvidia.com/t/problem-driver-nvidia-455-45-01 -on-linux-mint-20-4-6-7/165402 I am adding steps here: 1. Add the following lines to the file "/etc/initramfs-tools/modules" nvidia nvidia-drm nvidia-modeset 2. Run "sudo update-initramfs -u" in the terminal 3. Reboot -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1905591 Title: no brightness control in {455,460} after update from 450 To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
