Same problem with Dell Vostro 3650. Worked flawlessly on 15 (using open source ati radeon driver) and can't suspend on 16. suspend-log seems to finish well, when activating debug info for pmutils I can see it gets to the point where it launches s2ram --force. No errors at all in the log (attached), all the drivers reporting fine.
But the fan is still going, and the power light stays on. Normal behaviour would be no fan and blinking power light. The only way to continue is by long pressing the power button and forcing a complete shutdown and restart of the system. Thanks ** Attachment added: "pm-suspend.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574125/+attachment/4647724/+files/pm-suspend.log -- 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/1574125 Title: suspend not working after upgrade Status in linux package in Ubuntu: Confirmed Bug description: Hi, Upgraded from Ubuntu 15.10 where suspend workes flawlessly. After upgrade, putting machine in suspend turns the monitor black and everything seem to be off, though the fan still spins, the power light is on and the battery is trained. Nothing seem to wake it up (Meaning different key combinations - trying to get a shell by Ctrl+Alt+F1, for example; pressing power, any other key). Unsure how to try to get it working since I have to kill the power by pressing down the power button, then restarting it (it then does a drive scan for errors). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-21-generic 4.4.0-21.37 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: maria 2076 F.... pulseaudio /dev/snd/controlC1: maria 2076 F.... pulseaudio CurrentDesktop: Unity Date: Sun Apr 24 00:07:49 2016 HibernationDevice: RESUME=UUID=cc1bb3f2-abd6-41ad-b36e-62190fc5faaa InstallationDate: Installed on 2016-01-31 (83 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: LENOVO 20351 ProcEnviron: LANGUAGE=sv PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=sv_SE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-21-generic N/A linux-backports-modules-4.4.0-21-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-21 (2 days ago) dmi.bios.date: 04/02/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 9ACN25WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Lancer 5A2 dmi.board.vendor: LENOVO dmi.board.version: 31900058STD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G50-70 dmi.modalias: dmi:bvnLENOVO:bvr9ACN25WW:bd04/02/2014:svnLENOVO:pn20351:pvrLenovoG50-70:rvnLENOVO:rnLancer5A2:rvr31900058STD:cvnLENOVO:ct10:cvrLenovoG50-70: dmi.product.name: 20351 dmi.product.version: Lenovo G50-70 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574125/+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