Public bug reported: On Kubuntu 15.10 I had a problem with the suspend functionality on my laptop. The second time it suspends it would hang, and a hard reset was necessary to resolve the problem. After the update to 16.04, the problem was resolved (see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552216)
I updated my laptop using the xenial-updates repository. After the upgrade to linux 4.4.0-31, the suspend issue returned. I have also tried later updates (4.4.0-34 and 4.4.0-36), but the issue is also present in those versions. I therefore still use 4.4.0-28. I tried bisecting, but after a few iterations it messed up my boot partition, and after repairing that, I no longer took the time to finish the bisection. I think bisecting was somewhere in the 29 series of the kernel (see https://launchpad.net/ubuntu/+source/linux/4.4.0-31.50 for changelog) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-28-generic 4.4.0-28.47 ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13 Uname: Linux 4.4.0-28-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jan 9230 F.... pulseaudio Date: Sun Sep 4 19:42:54 2016 HibernationDevice: RESUME=UUID=321acbbf-9a6a-4825-8f47-a89d56536272 InstallationDate: Installed on 2016-02-03 (214 days ago) InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 8087:0a2a Intel Corp. Bus 001 Device 003: ID 0bda:57eb Realtek Semiconductor Corp. Bus 001 Device 002: ID 0461:4d15 Primax Electronics, Ltd Dell Optical Mouse Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP Pavilion Notebook ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic.efi.signed root=UUID=43cbb8c2-c0ce-40e2-a795-3a506e63d450 ro nogpumanager quiet splash pci=noaer PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-28-generic N/A linux-backports-modules-4.4.0-28-generic N/A linux-firmware 1.160 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/18/2015 dmi.bios.vendor: Insyde dmi.bios.version: F.77 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 80A4 dmi.board.vendor: HP dmi.board.version: 91.1C dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.77:bd12/18/2015:svnHP:pnHPPavilionNotebook:pvrType1ProductConfigId:rvnHP:rn80A4:rvr91.1C:cvnHP:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion Notebook dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug linux-4.4.0-31 linux-4.4.0-34 linux-4.4.0-36 xenial ** Tags added: linux-4.4.0-31 linux-4.4.0-34 linux-4.4.0-36 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1620089 Title: REGRESSION: Laptop hangs during second time it suspends To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1620089/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
