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[sajeev z <1093644@xxxxxxxxxxxxxxxxxx>]

Just goto amd website. In the navigation, go to drivers, goto linux
drivers download the 121 mb zip file unzip and follow the instructions.
After all the steps, reboot the system. Revoke from suspend works.

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

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https://bugs.launchpad.net/bugs/1093644

Title:
  [Samsung NP535U3C-A03DE] Blank screen on resume from suspend

Status in “linux” package in Ubuntu:
  Fix Committed

Bug description:
  when resuming from suspend, the screen remains blank, while the system
  ist still operational (logging in using ssh works).

  * restarting X doesn't help ("sudo restart lightdm" through ssh)
  * disabling KMS (nomodeset) doesn't help, still blank screen after pm-suspend
  * updating to xorg-edgers kernel 3.7.0-7 doesn't help
  * mainline kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/current/ (3.8.0.999) didn't work either
  * playing around with acpi_os_name had no effect

  I tried following the debugging instructions from
  https://wiki.ubuntu.com/DebuggingKernelSuspend, but I have no
  /sys/power/pm_trace (even on mainline kernel)

  The system is a brand new Samsung 535U3C-A03 with an AMD A4-4355M
  (integrated Radeon HD 7400G).

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-21-generic 3.5.0-21.32
  ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1
  Uname: Linux 3.5.0-21-generic x86_64
  ApportVersion: 2.6.1-0ubuntu9
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  galina     2104 F.... pulseaudio
   /dev/snd/controlC0:  galina     2104 F.... pulseaudio
  CRDA:
   country DE:
    (2400 - 2483 @ 40), (N/A, 20)
    (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
    (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
    (5470 - 5725 @ 40), (N/A, 26), DFS
  Date: Tue Dec 25 16:44:14 2012
  InstallationDate: Installed on 2012-12-24 (0 days ago)
  InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Release amd64(20121023)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 535U3C
  MarkForUpload: True
  ProcEnviron:
   LANGUAGE=de_DE:en
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-21-generic.efi.signed root=UUID=3d942843-dad1-48c0-b9d8-51ccff317810 ro quiet splash "acpi_os_name=Microsoft Windows NT" vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-21-generic N/A
   linux-backports-modules-3.5.0-21-generic  N/A
   linux-firmware                            1.98
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/24/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P06RAS.W70.121224.LEO
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP535U3C-A03DE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SEC_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP06RAS.W70.121224.LEO:bd12/24/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn535U3C:pvrP06RAS:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP535U3C-A03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 535U3C
  dmi.product.version: P06RAS
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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