Finally found a solution for this issue => you have to add the kernel parameter "resume=UUID=<UUID_OF_SWAP_PARTITION>" to the /etc/default/grub file: edit the file and afterwards sudo update-grub) or use Grub Customizer.
Questions: 1. Why the heck is this kernel parameter suddenly required in Ubuntu 18.04 ? It was definitely not necessary in Ubuntu 16.10, 17.04, 17.10. No, it wasn't, on 3 PCs !!! 2. Why the heck is this kernel parameter not set automatically if it is required ? It should be definitely set automatically. Would make everything easier for a simple user like me :-) -- 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/1759860 Title: Ubuntu MATE Bionic Beaver alpha - Hibernate/Resume Failure - ASUS P8H67-M PRO Status in linux package in Ubuntu: Confirmed Bug description: Resume from hibernate failed ProblemType: KernelOops DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-13-generic 4.15.0-13.14 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic x86_64 Annotation: This occurred during a previous hibernation, and prevented the system from resuming properly. ApportVersion: 2.20.9-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mihai 1761 F.... pulseaudio Date: Thu Mar 29 15:35:03 2018 DuplicateSignature: hibernate/resume:System manufacturer System Product Name:3904 ExecutablePath: /usr/share/apport/apportcheckresume Failure: hibernate/resume HibernationDevice: RESUME=UUID=21524dee-cba8-4f0e-8718-07509400c3f8 InstallationDate: Installed on 2018-03-29 (0 days ago) InstallationMedia: Ubuntu-MATE 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180307.1) InterpreterPath: /usr/bin/python3.6 MachineType: System manufacturer System Product Name ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-13-generic root=UUID=47373a65-7f17-4d2d-a006-c7eebce02df4 ro quiet splash vt.handoff=1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. Python3Details: /usr/bin/python3.6, Python 3.6.5rc1, python3-minimal, 3.6.4-1 PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-4 RelatedPackageVersions: linux-restricted-modules-4.15.0-13-generic N/A linux-backports-modules-4.15.0-13-generic N/A linux-firmware 1.173 SourcePackage: linux Title: [System manufacturer System Product Name] hibernate/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 04/27/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3904 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8H67-M PRO dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3904:bd04/27/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8H67-MPRO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759860/+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