Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1747633 Title: [Hewlett-Packard HP EliteBook 8460p] hibernate/resume failure Status in linux package in Ubuntu: Incomplete Bug description: suddenly screen blank with some yellow dot on the left edge blinking, i don't know why. recovered after reboot ProblemType: KernelOops DistroRelease: Ubuntu 18.04 Package: linux-image-4.13.0-32-generic 4.13.0-32.35 ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 Annotation: This occurred during a previous hibernation, and prevented the system from resuming properly. ApportVersion: 2.20.8-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: muhammad 1521 F.... pulseaudio Date: Sun Feb 4 20:26:12 2018 DuplicateSignature: hibernate/resume:Hewlett-Packard HP EliteBook 8460p:68SCF Ver. F.65 ExecutablePath: /usr/share/apport/apportcheckresume Failure: hibernate/resume HibernationDevice: RESUME=UUID=efe174e4-e201-4371-a3f2-5838808bd295 InstallationDate: Installed on 2018-02-02 (3 days ago) InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) InterpreterPath: /usr/bin/python3.6 MachineType: Hewlett-Packard HP EliteBook 8460p ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-32-generic root=UUID=e19030b9-4b26-46ca-9237-14b74aa33739 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 3.6.4, python3-minimal, 3.6.3-0ubuntu2 PythonDetails: /usr/bin/python2.7, Python 2.7.14+, python-minimal, 2.7.14-2ubuntu1 RelatedPackageVersions: linux-restricted-modules-4.13.0-32-generic N/A linux-backports-modules-4.13.0-32-generic N/A linux-firmware 1.170 SourcePackage: linux Title: [Hewlett-Packard HP EliteBook 8460p] hibernate/resume failure UpgradeStatus: Upgraded to bionic on 2018-02-04 (1 days ago) UserGroups: dmi.bios.date: 04/06/2017 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68SCF Ver. F.65 dmi.board.name: 161C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 97.4E dmi.chassis.asset.tag: CNU2379L6S dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68SCFVer.F.65:bd04/06/2017:svnHewlett-Packard:pnHPEliteBook8460p:pvrA0001D02:rvnHewlett-Packard:rn161C:rvrKBCVersion97.4E:cvnHewlett-Packard:ct10:cvr: dmi.product.family: 103C_5336AN dmi.product.name: HP EliteBook 8460p dmi.product.version: A0001D02 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1747633/+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