** Description changed:

  I have D-Link DWA-131 USB card.
  
  WORKAROUND: Reinsertion of the device helps.
+ 
+ WORKAROUND: Following advice from the site 
http://www.techytalk.info/ubuntu-fix-
+ network-stopped-working-after-resume-from-sleep/, I created the file
+ /etc/pm/config.d/unload_modules with the following contents:
+ 
+ SUSPEND_MODULES = "$SUSPEND_MODULES r8712u"
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-12-generic 3.0.0-12.20
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: NVidia [HDA NVidia], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  CRDA: Error: [Errno 2] Нет такого файла или каталога
  Card0.Amixer.info:
   Card hw:0 'NVidia'/'HDA NVidia at 0xb0000000 irq 19'
     Mixer name : 'Conexant CX20549 (Venice)'
     Components : 'HDA:14f15045,152d0758,00100100'
     Controls      : 20
     Simple ctrls  : 10
  Date: Tue Oct 25 16:55:42 2011
  HibernationDevice: RESUME=UUID=6aced6b7-4eb2-4f70-b00a-e93717f76016
  InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 001 Device 005: ID 07d1:3303 D-Link System DWA-131 802.11n Wireless N 
Nano Adapter(rev.A1) [Realtek RTL8192SU]
   Bus 002 Device 002: ID 09da:000a A4 Tech Co., Ltd Port Mouse
  MachineType: BenQ Joybook P51
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic 
root=UUID=a0ab8fb5-9cdd-46d9-a8a1-9b02fa271f83 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-12-generic N/A
   linux-backports-modules-3.0.0-12-generic  N/A
   linux-firmware                            1.60
  RfKill:
  
  SourcePackage: linux
  StagingDrivers: r8712u
  UpgradeStatus: Upgraded to oneiric on 2011-10-20 (5 days ago)
  dmi.bios.date: 08/11/2006
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: Q3A09
  dmi.board.name: Joybook P51
  dmi.board.vendor: BenQ
  dmi.board.version: REFERENCE
  dmi.chassis.type: 3
  dmi.chassis.vendor: NVIDIA
  dmi.modalias: 
dmi:bvnPhoenixTechnologiesLtd.:bvrQ3A09:bd08/11/2006:svnBenQ:pnJoybookP51:pvrREFERENCE:rvnBenQ:rnJoybookP51:rvrREFERENCE:cvnNVIDIA:ct3:cvr:
  dmi.product.name: Joybook P51
  dmi.product.version: REFERENCE
  dmi.sys.vendor: BenQ
- --- 
+ ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: amd64
  ArecordDevices:
-  **** List of CAPTURE Hardware Devices ****
-  card 0: NVidia [HDA NVidia], device 0: CONEXANT Analog [CONEXANT Analog]
-    Subdevices: 1/1
-    Subdevice #0: subdevice #0
+  **** List of CAPTURE Hardware Devices ****
+  card 0: NVidia [HDA NVidia], device 0: CONEXANT Analog [CONEXANT Analog]
+    Subdevices: 1/1
+    Subdevice #0: subdevice #0
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  vasdi      1521 f.... lxpanel
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  vasdi      1521 f.... lxpanel
  CRDA: Error: [Errno 2] Нет такого файла или каталога
  Card0.Amixer.info:
-  Card hw:0 'NVidia'/'HDA NVidia at 0xb0000000 irq 18'
-    Mixer name : 'Conexant CX20549 (Venice)'
-    Components : 'HDA:14f15045,152d0758,00100100'
-    Controls      : 20
-    Simple ctrls  : 12
+  Card hw:0 'NVidia'/'HDA NVidia at 0xb0000000 irq 18'
+    Mixer name : 'Conexant CX20549 (Venice)'
+    Components : 'HDA:14f15045,152d0758,00100100'
+    Controls      : 20
+    Simple ctrls  : 12
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=f67d54d9-9ee4-4893-935f-79f3acdc4103
  InstallationMedia: Lubuntu 12.04 "Precise Pangolin" - Release amd64 (20120423)
  Lsusb:
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 001 Device 003: ID 07d1:3303 D-Link System DWA-131 802.11n Wireless N 
Nano Adapter(rev.A1) [Realtek RTL8192SU]
-  Bus 002 Device 002: ID 09da:000a A4 Tech Co., Ltd Optical Mouse Opto 510D
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 001 Device 003: ID 07d1:3303 D-Link System DWA-131 802.11n Wireless N 
Nano Adapter(rev.A1) [Realtek RTL8192SU]
+  Bus 002 Device 002: ID 09da:000a A4 Tech Co., Ltd Optical Mouse Opto 510D
  MachineType: BenQ Joybook P51
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic 
root=UUID=ee3a5a6b-6341-410d-8cf1-ff013ed3dc04 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
  RelatedPackageVersions:
-  linux-restricted-modules-3.2.0-24-generic N/A
-  linux-backports-modules-3.2.0-24-generic  N/A
-  linux-firmware                            1.79
+  linux-restricted-modules-3.2.0-24-generic N/A
+  linux-backports-modules-3.2.0-24-generic  N/A
+  linux-firmware                            1.79
  RfKill:
-  
+ 
  SourcePackage: linux
  StagingDrivers: r8712u
  Tags:  precise staging precise staging
  Uname: Linux 3.2.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 08/11/2006
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: Q3A09
  dmi.board.name: Joybook P51
  dmi.board.vendor: BenQ
  dmi.board.version: REFERENCE
  dmi.chassis.type: 3
  dmi.chassis.vendor: NVIDIA
  dmi.modalias: 
dmi:bvnPhoenixTechnologiesLtd.:bvrQ3A09:bd08/11/2006:svnBenQ:pnJoybookP51:pvrREFERENCE:rvnBenQ:rnJoybookP51:rvrREFERENCE:cvnNVIDIA:ct3:cvr:
  dmi.product.name: Joybook P51
  dmi.product.version: REFERENCE
  dmi.sys.vendor: BenQ

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https://bugs.launchpad.net/bugs/881443

Title:
  No wifi after suspend

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