No sure if this will help, but there are plenty of debian bugs related to this to check
If you are relying on the `resume=` kernel parameter with /etc/default/grub, that might well be ignored. According to the message below, there are various bugs in upstream debian (and I'm not sure if Ubuntu patches/changes this): https://lists.debian.org/debian-kernel/2017/04/msg00348.html After installed, I noted `/etc/initramfs-tools/conf.d/resume` uses a UUID, but I had issues getting resume to work, possibly because I recreated my swap partition. As far as I could tell, Ubuntu 16.04.2 LTS seems to ignore the `resume=` kernel parameter as a UUID or LABEL. `apt-cache show initramfs-tools` shows Ubuntu 16.04.2 LTS currently has `Version: 0.122ubuntu8.8`, so it should be free of the bug/regression that caused UUID or LABEL to be ignored in `conf.d/resume` -- 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/1669620 Title: Reboot when resume from suspend Status in linux package in Ubuntu: Confirmed Bug description: When I resume my computer from suspend2ram, after about 2 seconds it shutdowns and after about 3 seconds swithces on, and system starts to boot from GRUB as it was poweroff. But if I resume my computer right away after it was suspended, it resumes properly. I occur this problem if some amount of time passed between suspend and resume. And I didn't reproduce this problem when lightdm was stopped (but the screen is black after resume, but I can login via SSH). But with launched X Server the problem occurs both with nouveau and Nvidia proprietary driver. There is not this problem on Ubuntu 14.04 (it is installed on this computer too but without madm and root partition encryption). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-generic 4.4.0.64.68 ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44 Uname: Linux 4.4.0-64-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: tim 2077 F.... pulseaudio CurrentDesktop: XFCE Date: Fri Mar 3 02:43:35 2017 EcryptfsInUse: Yes IwConfig: tun0 no wireless extensions. lo no wireless extensions. enp4s0 no wireless extensions. MachineType: Gigabyte Technology Co., Ltd. EP43-DS3L ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-64-generic root=UUID=77b30501-4b3e-4223-8e1c-ee51e9f214d7 ro RelatedPackageVersions: linux-restricted-modules-4.4.0-64-generic N/A linux-backports-modules-4.4.0-64-generic N/A linux-firmware 1.157.8 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/08/2008 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F5 dmi.board.name: EP43-DS3L dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF5:bd07/08/2008:svnGigabyteTechnologyCo.,Ltd.:pnEP43-DS3L:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP43-DS3L:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: EP43-DS3L dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1669620/+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
