Suspend hangs

[Nikola Kovacs]

Trying to suspend results in the the screen going blank, the fans speeding up, and the computer hanging.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xorg 1:7.7+7ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-28.37-generic 3.16.7-ckt1
Uname: Linux 3.16.0-28-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.113 Mon Dec 1 21:08:13 PST 2014
 GCC version: gcc version 4.9.1 (Ubuntu 4.9.1-16ubuntu6)
.tmp.unity.support.test.0:

ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
BootLog:
 resume: libgcrypt version: 1.5.4
  * Setting up X socket directories... 
[ OK ]
  * Starting early crypto disks... 
[ OK ]
CompizPlugins: [core,bailer,detection,composite,opengl,decor,vpswitch,compiztoolbox,gnomecompat,snap,imgpng,resize,regex,move,grid,mousepoll,place,session,animation,expo,ezoom,unitymtgrabhandles,wall,fade,scale,workarounds,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Mon Dec 15 22:38:24 2014
DistUpgraded: 2014-10-23 16:37:47,769 DEBUG enabling apt cron job
DistroCodename: utopic
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
 NVIDIA Corporation GK106 [GeForce GTX 660] [10de:11c0] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Gigabyte Technology Co., Ltd Device [1458:3625]
InstallationDate: Installed on 2014-03-31 (258 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Gigabyte Technology Co., Ltd. P35-DS3R
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic root=UUID=c740d858-96be-4dfc-b301-91c5aab9e9d2 ro quiet splash
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to utopic on 2014-10-23 (53 days ago)
dmi.bios.date: 06/19/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F13
dmi.board.name: P35-DS3R
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF13:bd06/19/2009:svnGigabyteTechnologyCo.,Ltd.:pnP35-DS3R:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35-DS3R:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P35-DS3R
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Mon Dec 15 22:28:50 2014
xserver.configfile: default
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.16.0-1ubuntu1.2

[Nikola Kovacs (nx)]

Turns out it's my monitor's (Dell U2415) built-in USB hub. If it's not plugged in, suspend works.
I've tried disabling wakeup for everything that was enabled in /proc/acpi/wakeup, but that didn't help.

[Nikola Kovacs (nx)]

I no longer have this issue in Ubuntu 15.10

[Paul White (paulw2u)]

Marking this as "Invalid" as Ubuntu 14.10 is EOL and Nikola isn't seeing a problem in Ubuntu 15.10.