Public bug reported: I previously used Ubuntu 16.04 and Nvidia 375 driver with a Nvidia Geforce 635M and Sandy Bridge i7. To switch between the 2 Optimus cards (Intel hybrid and Nvidia discrete), one had to go into nvidia-settings, switch, logoff, login back, and the change was applied.
I now have a Nvidia Quadro M2000 and a Skylake Xeon which has some Sync/Mux feature (whatever does that mean) with the Nvidia 390 driver. First of all, installing nivida-prime doesn't install bbswitch-dkms. Then, once the GPU switch is made, it triggers update-initramfs, recompile the kernel modules, and one needs to reboot the system to get the GPU change. Even when we install bbswitch-dkms. So am I getting a wrong impression or is there something twisted here ? ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: nvidia-prime 0.8.7 ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15 Uname: Linux 4.15.0-15-generic x86_64 ApportVersion: 2.20.9-0ubuntu4 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Apr 19 19:20:01 2018 Dependencies: InstallationDate: Installed on 2018-04-08 (11 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180408) PackageArchitecture: all SourcePackage: nvidia-prime UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: nvidia-prime (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1765556 Title: nvidia-prime needs a reboot to switch between dGPU/hGPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1765556/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs