Same issue for me. Nvidia is not powered off in intel mode. Cause massive battery drain, powertop shows value between 30-40 W.
Ubuntu 18.04.3, gdm3 MSI GS65 Stealth, Nvidia GTX 1070 MaxQ nvidia-prime version 0.8.8.2 Its strange that nvidia powering off in intel mode worked before on 18.04. Then I used nvidia mode for two months. Now I want to switch back to intel mode but its not working anymore. Unfortunately I don't know which update caused this, because I used nvidia mode for some time. Does this issue already have some official solution, or I have to use bbswitch? The manual bbswitch solution works for me, but I don't like it. Some notes: I tried to install nvidia driver 390, nvidia driver 430 and nvidia driver 435 from ppa and also from repository. Nvidia is not powering off in intel mode with any of them. When system booted in intel mode the /sys/kernel/debug/vgaswitcheroo directory doens't even exist... -- 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/1765363 Title: prime-select intel is not powering off the nvidia card Status in nvidia-prime package in Ubuntu: Confirmed Bug description: Right now, it seems that prime-select intel makes sure the nvidia driver is not loaded, as nvidia-settings reports. But my power consumption is > 20W. cat /proc/acpi/bbswitch reports the card is still on. If bbswitch and powertop are reliable, then the nvidia card is still powered. This is a thinkpad w520 in Optimus mode. 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: 2.20.9-0ubuntu5 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Apr 19 19:56:21 2018 Dependencies: EcryptfsInUse: Yes InstallationDate: Installed on 2017-12-14 (125 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) PackageArchitecture: all SourcePackage: nvidia-prime UpgradeStatus: Upgraded to bionic on 2018-03-09 (41 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1765363/+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
