Public bug reported: After fresh installation of Ubuntu 20.04 I changed used card to Intel GPU with command "sudo prime-select intel". After reboot Intel card is used to display, but dGPU is still active (more heat and power consumption, this laptop also has led that indicate dGPU activation).
In Ubuntu 19.04 which I used till today, after change to iGPU, laptop use iGPU and dGPU is in inactive state. I have MSI PE70 7RD laptop with Intel 7700HQ processor and NVIDIA 1050 GPU. I found similar problem on net, but without solution. https://askubuntu.com/questions/1232461/ubuntu-20-04-dgpu-is-always-on Workaround that I found is use "powertop" and in Tunables card activate power saving for dGPU card "Runtime PM for PCI Device NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile]", but I think it should work without such changes every reboot. Description: Ubuntu 20.04 LTS Release: 20.04 nvidia-prime: Installed: 0.8.14 Candidate: 0.8.14 Version table: *** 0.8.14 500 500 http://pl.archive.ubuntu.com/ubuntu focal/main amd64 Packages 500 http://pl.archive.ubuntu.com/ubuntu focal/main i386 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: nvidia-prime 0.8.14 ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30 Uname: Linux 5.4.0-29-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat May 9 11:38:41 2020 Dependencies: InstallationDate: Installed on 2020-05-09 (0 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) ** Affects: nvidia-prime (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877727 Title: Nvidia dGPU active despite prime-select set to Intel card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1877727/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
