It seems to be a problem of misconfigured BIOS. In the first place I had to enable "USB Wake support" in the bios (v.A09) in order to allow the computer to wake up. Before that, it would just not wake up at all and needed a hard reboot to do so. I'm not sure that Linux is at stake at all.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1617599 Title: Resume from suspend causes reboot, except if USB key is plugged in Status in linux package in Ubuntu: Incomplete Bug description: I have been struggling to find out how to get my laptop (Dell M3800) using ubuntu 16.04 to resume from suspend. It goes into suspend (with no errors in /var/log/pm-suspend.log). But when resuming, it immediately reboots, with no errors in /var/log/pm-suspend either. *but* Resume works perfectly when a USB key is plugged in (any key!). PS: I figured that out because suspend/resume works out of the box when using ubuntu 16.04 live CD, but not when using the fresh installed 16.04 afterwards. What's the difference?? There's a key in the USB port in the first case. So I tried suspend/resume with the *installed* version when a USB key is present: it works. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1617599/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
