Personally I don't need the kernel backported. But I just found out that on linux 13.6.0-4, suspend still fails *on battery power* and also on AC after first trying to suspend on battery. Perhaps this is unrelated to the original bug?
This is what I found in syslog: Jul 23 14:22:02 kupsu kernel: [ 319.851591] ------------[ cut here ]------------ Jul 23 14:22:02 kupsu kernel: [ 319.851656] WARNING: CPU: 0 PID: 10373 at /home/apw/COD/linux/drivers/gpu/drm/i915/intel_display.c:953 intel_wait_for_pipe_off+0x1de/0x1f0 [i915]() Jul 23 14:22:02 kupsu kernel: [ 319.851659] pipe_off wait timed out Jul 23 14:22:02 kupsu kernel: [ 319.851661] Modules linked in: md4 nls_utf8 cifs fscache pci_stub vboxpci(OE) bnep rfcomm bluetooth 6lowpan_iphc binfmt_misc vboxnetflt(OE) vboxnetadp(OE) vboxdrv(OE) parport_pc ppdev lp parport arc4 iwldvm mac80211 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media intel_powerclamp coretemp kvm_intel kvm microcode snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec joydev serio_raw snd_hwdep snd_pcm iwlwifi intel_ips cfg80211 snd_seq_midi snd_seq_midi_event snd_rawmidi sony_laptop snd_seq snd_seq_device snd_timer mac_hid mei_me snd mei lpc_ich soundcore tpm_infineon bbswitch(OE) dm_crypt mxm_wmi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i915 psmouse ahci libahci e1000e i2c_algo_bit sdhci_pci drm_kms_helper ptp sdhci drm pps_core video wmi Jul 23 14:22:02 kupsu kernel: [ 319.851736] CPU: 0 PID: 10373 Comm: Xorg Tainted: G D W OE 3.16.0-031600rc5-generic #201407131735 Jul 23 14:22:02 kupsu kernel: [ 319.851738] Hardware name: Sony Corporation VPCZ13C5E/VAIO, BIOS R3031C3 10/04/2011 Jul 23 14:22:02 kupsu kernel: [ 319.851741] 00000000000003b9 ffff8802480bbb88 ffffffff8178214c 0000000000000007 Jul 23 14:22:02 kupsu kernel: [ 319.851745] ffff8802480bbbd8 ffff8802480bbbc8 ffffffff8107007c ffff88024cb24000 Jul 23 14:22:02 kupsu kernel: [ 319.851748] ffff8802482c0000 0000000000070008 00000001000012f7 0000000000000000 Jul 23 14:22:02 kupsu kernel: [ 319.851752] Call Trace: Jul 23 14:22:02 kupsu kernel: [ 319.851761] [<ffffffff8178214c>] dump_stack+0x46/0x58 Jul 23 14:22:02 kupsu kernel: [ 319.851767] [<ffffffff8107007c>] warn_slowpath_common+0x8c/0xc0 Jul 23 14:22:02 kupsu kernel: [ 319.851770] [<ffffffff81070166>] warn_slowpath_fmt+0x46/0x50 Jul 23 14:22:02 kupsu kernel: [ 319.851804] [<ffffffffc04a1b2e>] intel_wait_for_pipe_off+0x1de/0x1f0 [i915] Jul 23 14:22:02 kupsu kernel: [ 319.851834] [<ffffffffc04a1c04>] intel_disable_pipe+0xc4/0xd0 [i915] Jul 23 14:22:02 kupsu kernel: [ 319.851864] [<ffffffffc04a6cbf>] ironlake_crtc_disable+0xaf/0x270 [i915] Jul 23 14:22:02 kupsu kernel: [ 319.851894] [<ffffffffc04a784e>] intel_crtc_update_dpms+0x6e/0xa0 [i915] Jul 23 14:22:02 kupsu kernel: [ 319.851924] [<ffffffffc04aaa81>] intel_connector_dpms+0x61/0x70 [i915] Jul 23 14:22:02 kupsu kernel: [ 319.851946] [<ffffffffc0355dc4>] drm_mode_connector_set_obj_prop+0xa4/0xb0 [drm] Jul 23 14:22:02 kupsu kernel: [ 319.851966] [<ffffffffc035c328>] drm_mode_obj_set_property_ioctl+0x138/0x220 [drm] Jul 23 14:22:02 kupsu kernel: [ 319.851986] [<ffffffffc035c440>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm] Jul 23 14:22:02 kupsu kernel: [ 319.851999] [<ffffffffc034ae76>] drm_ioctl+0x2e6/0x590 [drm] Jul 23 14:22:02 kupsu kernel: [ 319.852005] [<ffffffff81254b93>] ? sysfs_notify+0x53/0xb0 Jul 23 14:22:02 kupsu kernel: [ 319.852025] [<ffffffffc035c410>] ? drm_mode_obj_set_property_ioctl+0x220/0x220 [drm] Jul 23 14:22:02 kupsu kernel: [ 319.852031] [<ffffffff81125b0c>] ? acct_account_cputime+0x1c/0x20 Jul 23 14:22:02 kupsu kernel: [ 319.852036] [<ffffffff810a88a9>] ? account_user_time+0x99/0xb0 Jul 23 14:22:02 kupsu kernel: [ 319.852039] [<ffffffff810a8edd>] ? vtime_account_user+0x5d/0x70 Jul 23 14:22:02 kupsu kernel: [ 319.852044] [<ffffffff811f16d5>] do_vfs_ioctl+0x75/0x2c0 Jul 23 14:22:02 kupsu kernel: [ 319.852049] [<ffffffff810247e5>] ? syscall_trace_enter+0x165/0x280 Jul 23 14:22:02 kupsu kernel: [ 319.852052] [<ffffffff811f19b1>] SyS_ioctl+0x91/0xb0 Jul 23 14:22:02 kupsu kernel: [ 319.852057] [<ffffffff8178fdff>] tracesys+0xe1/0xe6 Jul 23 14:22:02 kupsu kernel: [ 319.852059] ---[ end trace f42929fe69957d3c ]--- -- 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/1338227 Title: [Sony VPCZ13C5E] late resume failure Status in “linux” package in Ubuntu: Incomplete Bug description: Suspend fails: only network disconnects/reconnects, system remains usable (not sure how stable though). At least that's how it appears to the user. ProblemType: KernelOops DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-30-generic 3.13.0-30.55 ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2 Uname: Linux 3.13.0-30-generic x86_64 Annotation: This occured during a previous suspend and prevented it from resuming properly. The resume processing hung very near the end and will have appeared to have completed normally. ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: zek 2567 F.... pulseaudio Date: Sun Jul 6 14:32:51 2014 DuplicateSignature: late resume:Sony Corporation VPCZ13C5E:R3031C3 ExecutablePath: /usr/share/apport/apportcheckresume Failure: late resume HibernationDevice: RESUME=UUID=6b30d10b-455e-4cc0-921e-ff1270708ab8 InstallationDate: Installed on 2014-04-13 (83 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140412) InterpreterPath: /usr/bin/python3.4 MachineType: Sony Corporation VPCZ13C5E ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=/dev/mapper/xubuntu--vg-root 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-3.13.0-30-generic N/A linux-backports-modules-3.13.0-30-generic N/A linux-firmware 1.127.4 SourcePackage: linux Title: [Sony Corporation VPCZ13C5E] late resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 10/04/2011 dmi.bios.vendor: INSYDE dmi.bios.version: R3031C3 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnINSYDE:bvrR3031C3:bd10/04/2011:svnSonyCorporation:pnVPCZ13C5E:pvrRESERVED:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: VPCZ13C5E dmi.product.version: RESERVED dmi.sys.vendor: Sony Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1338227/+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