I only had this in 18.4 and 20.4,but had not tried older versions after noticed it.but i remembered in any previous version reboot was not needed.
I found a github-repo describing the difference,but had not tested it because it is not designed to be working on 20.4.only tried lightdm,but no difference. https://github.com/matthieugras/Prime-Ubuntu-18.04 -- 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/1890404 Title: prime-select needs reboot Status in nvidia-prime package in Ubuntu: New Bug description: in previous ubuntu versions (<18.4) it was posible to switch hybrid graphics with only logout/login, but not with 18.4+ including 20.4 tried also with lightdm instead of gdm3, same result and more problems (not working fingerprint, tap2click and larger cursor) is it possible to select card by commandline (in grub) to avoid rebooting after switching? ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: nvidia-prime 0.8.14 Uname: Linux 5.4.52-custom x86_64 ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: GNOME-Flashback:GNOME Date: Wed Aug 5 10:23:56 2020 Dependencies: InstallationDate: Installed on 2020-04-27 (99 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) PackageArchitecture: all SourcePackage: nvidia-prime UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1890404/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
