Since the 'oibaf' PPA is likely the problem here I am going to close this bug. Please uninstall the PPA, reboot, and if the problem continues to occur then open a new bug.
** Changed in: nvidia-graphics-drivers-390 (Ubuntu) Status: New => Invalid ** Changed in: software-properties (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-390 in Ubuntu. https://bugs.launchpad.net/bugs/1932021 Title: cannot find proper graphics drivers and cannot install (NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M]) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1932021/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp