I faced similar problem. With upstream kernel buggy behavior is not changed, still it's not possible to suspend the system as it goes back to login screen immediately.
I'm happy to provide more info, let me know what is needed. --------------------- ~$ uname -a Linux orion3 3.15.0-031500-generic #201406131105 SMP Fri Jun 13 15:06:46 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- 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/1329689 Title: Suspend fails with nouveau problem Status in “linux” package in Ubuntu: Incomplete Bug description: Suspend works with linux-image-extra-3.13.0-24-generic, but fails with linux-image-extra-3.13.0-27-generic Here is a message from syslog: Jun 13 02:00:56 nereocystis kernel: [ 59.696022] sd 0:0:0:0: [sda] Stopping disk Jun 13 02:00:56 nereocystis kernel: [ 59.722745] nouveau [ DRM] waiting for kernel channels to go idle... Jun 13 02:00:56 nereocystis kernel: [ 59.722770] nouveau [ DRM] suspending client object trees... Jun 13 02:00:56 nereocystis kernel: [ 59.723158] nouveau [ DRM] suspending kernel object tree... Jun 13 02:00:56 nereocystis kernel: [ 61.725016] nouveau E[ PDISP][0000:01:00.0][0xc000857c][ffff8800a28d3b80] fini timeout, 0xc2061008 Jun 13 02:00:56 nereocystis kernel: [ 61.725017] nouveau E[ PDISP][0000:01:00.0][0xc000857c][ffff8800a28d3b80] failed suspend, -16 Jun 13 02:00:56 nereocystis kernel: [ 61.725019] nouveau E[ DRM] 0xd1500000:0xd15c7c00 suspend failed with -16 Jun 13 02:00:56 nereocystis kernel: [ 61.725042] nouveau E[ DRM] 0xdddddddd:0xd1500000 suspend failed with -16 Jun 13 02:00:56 nereocystis kernel: [ 61.725153] nouveau E[ DRM] 0xffffffff:0xdddddddd suspend failed with -16 Jun 13 02:00:56 nereocystis kernel: [ 61.725625] nouveau E[ DRM] 0xffffffff:0xffffffff suspend failed with -16 Jun 13 02:00:56 nereocystis kernel: [ 61.725733] nouveau [ DRM] resuming display... Jun 13 02:00:56 nereocystis kernel: [ 61.752906] pci_pm_suspend(): nouveau_pmops_suspend+0x0/0xb0 [nouveau] returns -16 Jun 13 02:00:56 nereocystis kernel: [ 61.752920] dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns -16 Jun 13 02:00:56 nereocystis kernel: [ 61.752922] PM: Device 0000:01:00.0 failed to suspend async: error -16 Jun 13 02:00:56 nereocystis kernel: [ 61.752934] PM: Some devices failed to suspend, or early wake event detected Jun 13 02:00:56 nereocystis kernel: [ 61.752987] mei_me 0000:00:16.0: irq 45 for MSI/MSI-X Jun 13 02:00:56 nereocystis kernel: [ 61.769256] snd_hda_intel 0000:00:1b.0: irq 48 for MSI/MSI-X Jun 13 02:00:56 nereocystis kernel: [ 61.856994] pciehp 0000:00:1c.5:pcie04: Device 0000:04:00.0 already exists at 0000:04:00, cannot hot-add Jun 13 02:00:56 nereocystis kernel: [ 61.856997] pciehp 0000:00:1c.1:pcie04: Device 0000:03:00.0 already exists at 0000:03:00, cannot hot-add Jun 13 02:00:56 nereocystis kernel: [ 61.856999] pciehp 0000:00:1c.5:pcie04: Cannot add device at 0000:04:00 Jun 13 02:00:56 nereocystis kernel: [ 61.857001] pciehp 0000:00:1c.1:pcie04: Cannot add device at 0000:03:00 Jun 13 02:00:56 nereocystis kernel: [ 62.097072] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Jun 13 02:00:56 nereocystis kernel: [ 62.097105] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jun 13 02:00:56 nereocystis kernel: [ 62.097879] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out Jun 13 02:00:56 nereocystis kernel: [ 62.097996] ata1.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded Jun 13 02:00:56 nereocystis kernel: [ 62.097999] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out Jun 13 02:00:56 nereocystis kernel: [ 62.099477] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out Jun 13 02:00:56 nereocystis kernel: [ 62.099569] ata1.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded Jun 13 02:00:56 nereocystis kernel: [ 62.099570] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out Jun 13 02:00:56 nereocystis kernel: [ 62.099923] ata2.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded Jun 13 02:00:56 nereocystis kernel: [ 62.099925] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out Jun 13 02:00:56 nereocystis kernel: [ 62.100186] ata1.00: configured for UDMA/133 Jun 13 02:00:56 nereocystis kernel: [ 62.105023] ata5: SATA link down (SStatus 0 SControl 300) Jun 13 02:00:56 nereocystis kernel: [ 62.106057] ata2.00: ACPI cmd ef/10:06:00:00:00:a0 (SET FEATURES) succeeded Jun 13 02:00:56 nereocystis kernel: [ 62.106060] ata2.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out Jun 13 02:00:56 nereocystis kernel: [ 62.108022] ata2.00: configured for UDMA/100 Jun 13 02:00:56 nereocystis kernel: [ 62.113114] sd 0:0:0:0: [sda] Starting disk Jun 13 02:00:56 nereocystis kernel: [ 64.091258] PM: resume of devices complete after 2337.685 msecs Jun 13 02:00:56 nereocystis kernel: [ 64.091849] PM: Finishing wakeup. Jun 13 02:00:36 nereocystis whoopsie[1581]: online Jun 13 02:00:56 nereocystis whoopsie[1581]: offline Jun 13 02:00:56 nereocystis kernel: [ 64.091850] Restarting tasks ... done. Jun 13 02:00:56 nereocystis kernel: [ 64.102356] video LNXVIDEO:00: Restoring backlight state Jun 13 02:00:56 nereocystis kernel: [ 64.102630] video LNXVIDEO:02: Restoring backlight state Jun 13 02:00:56 nereocystis anacron[4281]: Anacron 2.3 started on 2014-06-13 Jun 13 02:00:56 nereocystis anacron[4281]: Will run job `cron.daily' in 5 min. Jun 13 02:00:56 nereocystis anacron[4281]: Jobs will be executed sequentially Jun 13 02:00:57 nereocystis kernel: [ 64.303326] iwlwifi 0000:03:00.0: L1 Disabled; Enabling L0S Jun 13 02:00:57 nereocystis kernel: [ 64.310766] iwlwifi 0000:03:00.0: Radio type=0x0-0x0-0x3 Jun 13 02:00:57 nereocystis NetworkManager[1046]: <info> wake requested (sleeping: yes enabled: yes) Jun 13 02:00:57 nereocystis NetworkManager[1046]: <info> waking up and re-enabling... Jun 13 02:00:57 nereocystis NetworkManager[1046]: <info> WWAN now enabled by management service ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-extra-3.13.0-27-generic 3.13.0-27.50 ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11 Uname: Linux 3.13.0-27-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: kevin 10207 F.... pulseaudio CurrentDesktop: Unity Date: Fri Jun 13 02:13:05 2014 HibernationDevice: RESUME=UUID=8434466e-40aa-4c19-990f-adc570555efa InstallationDate: Installed on 2013-06-02 (375 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) Lsusb: Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 13d3:5120 IMC Networks Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK Computer Inc. U30Jc ProcFB: 0 inteldrmfb 1 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-27-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-27-generic N/A linux-backports-modules-3.13.0-27-generic N/A linux-firmware 1.127.2 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-04-24 (49 days ago) dmi.bios.date: 01/24/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: U30Jc.217 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: U30Jc dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrU30Jc.217:bd01/24/2011:svnASUSTeKComputerInc.:pnU30Jc:pvr1.0:rvnASUSTeKComputerInc.:rnU30Jc:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: U30Jc dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. 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