Mike Gerwitz writes: > On Wed, Jan 23, 2019 at 01:08:39 -0500, Mike Gerwitz wrote: >> Right after sending this message, I recalled that I used powertop to do >> "auto tuning". Sure enough, one of the lines was this: >> >> Good Autosuspend for USB device UHCI Host Controller [usb6] >> >> By disabling it, it runs this command: >> >> echo on > /sys/bus/usb/devices/usb6/power/control >> >> And it resolves my suspend issues on 4.20.3-gnu. > > [...] > >> This bug can be closed. > > Sorry, I take that back. I could have sworn it did resolve the issue, > but that does not seem to be the case. > > This seems unrelated to powertop; `auto' seems to be the default setting > of /sys/bus/usb/devices/*/power/control, which is reset on reboot. In > any case, setting it to `on' does not solve my suspend issue. > > It's not a hardware issue, because earlier kernel versions work just > fine. > > I tried debugging this further, but even on a minimal Guix system, I > cannot seem to work around the problem. > > Any advice, anyone?
Recently I had to switch back to my x200 and found that it wouldn't suspend anymore, and I wasn't sure why. Then I somehow screwed up my system and had to do a reinstall of guix and suspend worked again. I wasn't sure why... now I seem to have the answer. When I reinstalled, I must not have done so from the latest guix versions. cwebber@jasmine:~$ uname -a Linux jasmine 4.17.3-gnu #1 SMP 1 x86_64 GNU/Linux So I guess if I did a system upgrade, I would have the problem again :) Note that I am running this x200 with a (somewhat out of date) Libreboot install.
