Hi, Did an upstream bug get filed for this? I have the same pc model (HP Compaq dc7800p) and have always seen the same odd behaviour where the pc must first be put into hibernate before it will be able to resume from suspend to RAM. I have seen this behaviour in both Ubuntu and Arch linux (every version I have tried going back several years).
I currently don't use Ubuntu on this pc and came across this report looking for something else (updating kernel from 3.16.2 to 3.17.3 on Arch also broke my ability to hibernate so I couldn't access suspend of any kind without downgrading again). But I thought an additional confirmation of this bug (and as an upstream issue) could be helpful. -- 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/1375995 Title: [HP Compaq dc7800 Small Form Factor PC] suspend/resume failure Status in “linux” package in Ubuntu: Triaged Bug description: Suspend to RAM fails on HP Compaq dc7800p, the PC will not wake up again. It only works if I suspend to disk before, then I can suspend to RAM afterwards (as many time as needed) until the PC is rebooted again. ProblemType: KernelOops DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-18-generic 3.16.0-18.25 ProcVersionSignature: Ubuntu 3.16.0-18.25-generic 3.16.3 Uname: Linux 3.16.0-18-generic x86_64 Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.14.7-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: urs 1849 F.... lxpanel CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Tue Sep 30 20:44:46 2014 DuplicateSignature: suspend/resume:Hewlett-Packard HP Compaq dc7800p Small Form Factor:786F1 v01.32 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume HibernationDevice: RESUME=UUID=c338e9df-bc69-4692-b108-88cfd64982a7 InstallationDate: Installed on 2014-09-28 (2 days ago) InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140923) InterpreterPath: /usr/bin/python3.4 IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Hewlett-Packard HP Compaq dc7800p Small Form Factor ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-18-generic root=UUID=6475de33-f0cf-4e4a-b155-bac5d4c61b27 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.16.0-18-generic N/A linux-backports-modules-3.16.0-18-generic N/A linux-firmware 1.134 RfKill: SourcePackage: linux Title: [Hewlett-Packard HP Compaq dc7800p Small Form Factor] suspend/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 07/21/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786F1 v01.32 dmi.board.asset.tag: CZC81885DS dmi.board.name: 0AA8h dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: CZC81885DS dmi.chassis.type: 4 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786F1v01.32:bd07/21/2011:svnHewlett-Packard:pnHPCompaqdc7800pSmallFormFactor:pvr:rvnHewlett-Packard:rn0AA8h:rvr:cvnHewlett-Packard:ct4:cvr: dmi.product.name: HP Compaq dc7800p Small Form Factor dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1375995/+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
