Asus U44S laptop with Optimus Nvidia Geoforce GT 610M. Slightly different but related issue. Can suspend with by closing the lid which didn't work in 15.10, although only without an external monitor plugged in. But upon resume getting a hardware lockup and freeze nearly 100% of the time. Initially it worked, but then has since stopped working. Using Nvidia binary driver 361.42 with the Intel card turned off under software control.
Just noticed something odd though as writing this up. Additional Drivers lists the Nvidia drivers OK, but for the Intel card it is now reporting "Unknown: Unknown - This device is not working." After upgrading to 16.04 from 15.10 I double checked and it reported the Intel card turned off from Additional Drivers. Clear, something has changed. ** Attachment added: "Additional Drivers" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574125/+attachment/4645942/+files/Screenshot%20from%202016-04-25%2006-33-43.png -- 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 uprade 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