Well, I have been able to solve the problem and I am able to use nvidia driver again. The problem is that nvidia-prime blacklist nvidia driver. The file is "/etc/modprobe.d/blacklist-nvidia.conf" with content: # Do not modify # This file was generated by nvidia-prime blacklist nvidia blacklist nvidia-drm blacklist nvidia-modeset alias nvidia off alias nvidia-drm off alias nvidia-modeset off
File was never re-established, even when uninstalling/purging nvidia- prime package. I think that this file should be re-established/deleted when you uninstall nvidia-prime. Thanks Alberto and other maintainers for your hard work maintaining nvidia packages ( -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1757180 Title: nvidia-prime can't switch off the discrete GPU Status in nvidia-prime package in Ubuntu: Fix Released Status in nvidia-settings package in Ubuntu: Fix Released Status in ubuntu-drivers-common package in Ubuntu: Fix Released Bug description: nvidia-prime used to be able to switch off and on NVIDIA dGPU. Now, a change in the nvidia packaging, and a change of behaviour in logind, broke this feature. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1757180/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
