Dell XPS 15 9570 with GTX 1050ti (mobile) None of the above solutions worked, and while at first Tims solution appeared to work, I was still using > 20w ...
I've been enjoying 18.04 otherwise but as a student often in classes without chargers, battery life is too important to me. I'll be reverting back to 16.04 - looking forward for this issue to be fixed. Is there a way to subscribe to this bug? I'd like to get back on to 18.04 as soon as this is fixed. -- 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 : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp