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I've seen a couple similar questions (1, 2, 3, 4, 5), but neither seems to address my case. When I suspend, after a second, I see a terminal with the word "Nouveau" (implying Nvidia problems?), and the I get the login screen.

acpitool -w:

   Device   S-state   Status   Sysfs node
  ---------------------------------------
  1. P0P1     S4    *disabled
  2. EHC1     S0    *disabled  pci:0000:00:1d.0
  3. EHC2     S0    *disabled  pci:0000:00:1a.0
  4. RP01     S4    *disabled  pci:0000:00:1c.0
  5. PXSX     S4    *enabled   pci:0000:02:00.0
  6. RP02     S4    *disabled
  7. PXSX     S4    *disabled
  8. RP03     S3    *disabled  pci:0000:00:1c.2
  9. PXSX     S4    *enabled   pci:0000:03:00.0
  10. RP05    S4    *disabled  pci:0000:00:1c.4
  11. PXSX    S4    *enabled   pci:0000:04:00.0
  12. RP06    S4    *disabled
  13. PXSX    S4    *disabled
  14. PEG0    S4    *disabled  pci:0000:00:01.0
  15. PEGP    S4    *disabled  pci:0000:01:00.0
  16. LID0    S3    *enabled 

lspci:

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM67 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 525M] (rev a1)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] (rev 34)
03:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)

How can I make suspend work?

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closed as off-topic by chaskes, bain, Mitch Aug 4 at 16:33

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – chaskes, bain, Mitch
If this question can be reworded to fit the rules in the help center, please edit the question.

    
In /sys/kernel/debug/wakeup_sources you should see the active_count of the system wakeup source increment every time there is a wakeup. Do find /sys/devices -name wakeup to locate the control device and turn wakeup off with echo disabled > .../wakeup. Also see Debugging hibernation and suspend You should also report this bug on Launchpad so it can be fixed for all affected users. –  bain Aug 4 at 0:17
1  
@bain I installed Software Sources Nvidia driver, and it works. –  Simon Kuang Aug 4 at 5:46
    
So if Nouveau is in use, suspend is immediately followed by a wakeup, but if Nvidia driver is in use, everything works ok? In that case, this would seem to be a bug in the Nouveau driver, and you should report it on Launchpad and to the Nouveau project. –  bain Aug 4 at 10:38