https://bugs.freedesktop.org/show_bug.cgi?id=98398
Bug ID: 98398 Summary: [Nouveau] Vgaswitcharoo fails to turn off GPU properly Product: DRI Version: XOrg git Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/other Assignee: dri-devel@lists.freedesktop.org Reporter: rick.2889@gmail.com
Created attachment 127483 --> https://bugs.freedesktop.org/attachment.cgi?id=127483&action=edit dmesg output
Using Arch Linux and kernel 4.8.3, I am observing much higher power usage in powertop when using Nouveau with vgaswitcharoo (~13W) opposed to NVIDIA/Bumblebee with BBSwitch (~7.5 W).
I initially started noticing this because the battery drained much faster and the fans started to spin while they otherwise stayed idle.
Attached is my dmesg log.