Public bug reported: I'm really concerned with ubuntu power consumption and have done everything in ubuntu help pages corresponding power optimization. that included running pm-powersave and powertop. I also had some problem with my external HDD and usb devices not being even seen by OS. just turned out when I change their status in powertop Tunables from good to bad, they start working again! the entry starts with Autosuspend for USB device ....
I'm using Ubuntu 16.10 the output of "apt-cache policy powertop" is: powertop: Installed: 2.8-1build1 Candidate: 2.8-1build1 Version table: ... I expected the autosuspend to intelligently disable devices if not used for a while (like 3 min at least) and also activating them again as soon as they are required... But it just deactivate all my USB Ports. at least should be warned in https://help.ubuntu.com/community/PowerManagement/ReducedPower that this could happen. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: powertop 2.8-1build1 ProcVersionSignature: Ubuntu 4.8.0-39.42-generic 4.8.17 Uname: Linux 4.8.0-39-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.3-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity Date: Tue Mar 7 21:28:00 2017 InstallationDate: Installed on 2017-02-25 (10 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) SourcePackage: powertop UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: powertop (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug yakkety -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1670783 Title: changing status of autosuspend usb devices completely disables them. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/powertop/+bug/1670783/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
