I've done a bit more narrowing down on this and found that the problem occurs between kernel 3.14.51 and kernel 3.15.0-RC1. I know this isn't kernel bisecting (haven't done this before so will give it a go but not sure whether I'll be successful).
Oddly, in Ubuntu 14.10, I can suspend/resume fine with kernel 3.16.0-38, but this doesn't work in 15.04. Odd. -- 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/1416557 Title: [Acer Aspire V5-573G] suspend/resume failure Status in linux package in Ubuntu: Expired Bug description: Black screen on resume after suspend ProblemType: KernelOops DistroRelease: Ubuntu 15.04 Package: linux-image-3.18.0-12-generic 3.18.0-12.13 ProcVersionSignature: Ubuntu 3.18.0-12.13-generic 3.18.4 Uname: Linux 3.18.0-12-generic x86_64 Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.15.1-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lightdm 1668 F.... pulseaudio valeronm 2143 F.... pulseaudio /dev/snd/controlC0: lightdm 1668 F.... pulseaudio valeronm 2143 F.... pulseaudio Date: Fri Jan 30 23:39:37 2015 DuplicateSignature: suspend/resume:Acer Aspire V5-573G:V2.29 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume HibernationDevice: RESUME=UUID=2b5c8acc-3a16-4e7f-97ba-5f4d5d564e7c InstallationDate: Installed on 2015-01-30 (0 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150130) InterpreterPath: /usr/bin/python3.4 MachineType: Acer Aspire V5-573G ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.18.0-12-generic.efi.signed root=UUID=eca5cdef-c2d4-4af6-a5e2-a11289cc9cfc ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.18.0-12-generic N/A linux-backports-modules-3.18.0-12-generic N/A linux-firmware 1.141 SourcePackage: linux Title: [Acer Aspire V5-573G] suspend/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 06/05/2014 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V2.29 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Dazzle_HW dmi.board.vendor: Acer dmi.board.version: Type2 - A01 Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.29:bd06/05/2014:svnAcer:pnAspireV5-573G:pvrTBDbyOEM:rvnAcer:rnDazzle_HW:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.name: Aspire V5-573G dmi.product.version: TBD by OEM dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1416557/+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