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[Michael Murphy <1270218@xxxxxxxxxxxxxxxxxx>]

I'm currently running kernel 3.13.0-5-generic which seems okayish. In
general, it seems the problem is intermittent. Sometimes on boot there
is no display, other times it boots fine.

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https://bugs.launchpad.net/bugs/1270218

Title:
  3.13.0-4-generic [Radeon HD 7950] No Display at Login Screen

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  It seems this kernel version causes my Radeon HD 7950 to fail at the login screen -- the monitor has video output until it gets to the login screen. The previous version, 3.13.0-3-generic, which I am currently using, works fine.
  --- 
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  mmstick    2139 F.... pulseaudio
   /dev/snd/controlC0:  mmstick    2139 F.... pulseaudio
   /dev/snd/pcmC0D0p:   mmstick    2139 F...m pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=0c0d4375-04a3-47aa-b834-784266bab26b
  InstallationDate: Installed on 2014-01-17 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140115)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: To be filled by O.E.M. To be filled by O.E.M.
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-3-generic root=UUID=533353cd-e20e-4979-942f-c0b806c157ea ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-3.18-generic 3.13.0-rc8
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-3-generic N/A
   linux-backports-modules-3.13.0-3-generic  N/A
   linux-firmware                            1.121
  RfKill:
   
  Tags:  trusty
  Uname: Linux 3.13.0-3-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 10/16/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1604
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: SABERTOOTH 990FX
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1604:bd10/16/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FX:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: To be filled by O.E.M.

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