Carl Englund, could you please test the latest upstream kernel available 
following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow 
additional upstream developers to examine the issue. Please do not test the 
daily folder, but the one all the way at the bottom. Once you've tested the 
upstream kernel, please comment on which kernel version specifically you 
tested. If this bug is fixed in the mainline kernel, please add the following 
tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For 
example:
kernel-fixed-upstream-v3.11-rc4

This can be done by clicking on the yellow circle with a black pencil icon next 
to the word Tags located at the bottom of the bug description. As well, please 
remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why 
specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags added: latest-bios-v1.19 needs-upstream-testing regression-
potential

** Attachment removed: "version.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087861/+attachment/3454416/+files/version.log

** Attachment removed: "lspci-vnvn.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087861/+attachment/3454417/+files/lspci-vnvn.log

** Tags removed: regression-potential
** Tags added: regression-release

** Description changed:

  When returning from suspend, the image on the screen is returned but
  frozen. No mouse cursor movement, no keyboard input. Switch to console
  (ctrl+alt+f2) does not work. Ctrl+alt+del does not work. Hovever, the
  system seems to be alive since the hard drive light flashes occationally
  and fan spins at normal.
+ 
+ WORKAROUND: I switched to discrete graphics in the BIOS (Radeon).
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-19-generic 3.5.0-19.30
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  diskdoc    3436 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  diskdoc    3436 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
  Date: Sat Dec  8 00:21:28 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=11efe0be-9f52-4ee5-ae6c-7e025de38353
  InstallationDate: Installed on 2010-06-07 (914 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  MachineType: Acer Aspire 3820
  MarkForUpload: True
  ProcFB:
-  0 inteldrmfb
-  1 radeondrmfb
+  0 inteldrmfb
+  1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic 
root=UUID=8b7cae99-dae3-4d14-bbd3-24f82a9e0b57 ro quiet splash 
rootflags=data=writeback vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.5.0-19-generic N/A
-  linux-backports-modules-3.5.0-19-generic  N/A
-  linux-firmware                            1.95
+  linux-restricted-modules-3.5.0-19-generic N/A
+  linux-backports-modules-3.5.0-19-generic  N/A
+  linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: Upgraded to quantal on 2012-12-05 (2 days ago)
  dmi.bios.date: 10/27/2010
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: V1.19
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: JM31_CP
  dmi.board.vendor: Acer
  dmi.board.version: V1.19
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.19
  dmi.modalias: 
dmi:bvnPhoenixTechnologiesLTD:bvrV1.19:bd10/27/2010:svnAcer:pnAspire3820:pvrV1.19:rvnAcer:rnJM31_CP:rvrV1.19:cvnAcer:ct10:cvrV1.19:
  dmi.product.name: Aspire 3820
  dmi.product.version: V1.19
  dmi.sys.vendor: Acer

** Description changed:

  When returning from suspend, the image on the screen is returned but
  frozen. No mouse cursor movement, no keyboard input. Switch to console
  (ctrl+alt+f2) does not work. Ctrl+alt+del does not work. Hovever, the
  system seems to be alive since the hard drive light flashes occationally
  and fan spins at normal.
  
  WORKAROUND: I switched to discrete graphics in the BIOS (Radeon).
+ 
+ WORKAROUND: /usr/lib/pm-utils/sleep.d/95switcheroo/sleep.d :
+ #!/bin/sh
+ 
+ [ -f /sys/kernel/debug/vgaswitcheroo/switch ] || exit $NA
+ 
+ case "$1" in
+         hibernate|suspend)
+                 echo ON > /sys/kernel/debug/vgaswitcheroo/switch
+                 if grep -c 'IGD:+:Pwr' /sys/kernel/debug/vgaswitcheroo/switch
+                 then
+                     echo MIGD > /sys/kernel/debug/vgaswitcheroo/switch
+                 fi
+                 ;;
+         thaw|resume)
+                 echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
+                 ;;
+         *) exit $NA
+                 ;;
+ esac
+ 
+ add:
+ echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
+ 
+ to /etc/rc.local
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-19-generic 3.5.0-19.30
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  diskdoc    3436 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
  Date: Sat Dec  8 00:21:28 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=11efe0be-9f52-4ee5-ae6c-7e025de38353
  InstallationDate: Installed on 2010-06-07 (914 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  MachineType: Acer Aspire 3820
  MarkForUpload: True
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic 
root=UUID=8b7cae99-dae3-4d14-bbd3-24f82a9e0b57 ro quiet splash 
rootflags=data=writeback vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-19-generic N/A
   linux-backports-modules-3.5.0-19-generic  N/A
   linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: Upgraded to quantal on 2012-12-05 (2 days ago)
  dmi.bios.date: 10/27/2010
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: V1.19
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: JM31_CP
  dmi.board.vendor: Acer
  dmi.board.version: V1.19
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.19
  dmi.modalias: 
dmi:bvnPhoenixTechnologiesLTD:bvrV1.19:bd10/27/2010:svnAcer:pnAspire3820:pvrV1.19:rvnAcer:rnJM31_CP:rvrV1.19:cvnAcer:ct10:cvrV1.19:
  dmi.product.name: Aspire 3820
  dmi.product.version: V1.19
  dmi.sys.vendor: Acer

** Summary changed:

- Screen freeze on resume from suspend
+ [Acer Aspire 3820T] Screen freeze on resume from suspend

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1087861

Title:
  [Acer Aspire 3820T] Screen freeze on resume from suspend

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