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[Anthony Wong <anthony.wong@xxxxxxxxxxxxx>]

** Changed in: linux (Ubuntu)
     Assignee: Anthony Wong (anthonywong) => (unassigned)

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https://bugs.launchpad.net/bugs/1225846

Title:
  [Dell OptiPlex 3011] No display after boot to desktop with radeon
  driver, unless "nomodeset" is added.

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  CID: 201302-12681 Dell OptiPlex 3011

  This All-in-One computer can boot to desktop normally with 12.04.3 LiveUSB, 
  but after the OS was installed, there is no display after boot (after the purple screen).
  Observe the LCD screen, you will see it keeps blinking from black to dark gray. 

  However, if "nomodeset" is added to grub, the display came back.

  ubuntu@201302-12681:~$ lspci -nn | grep 300
  01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Device [1002:6771]
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.8.0-29-generic.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC280 Analog [ALC280 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC280 Analog [ALC280 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1644 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf7f10000 irq 45'
     Mixer name	: 'Realtek ALC280'
     Components	: 'HDA:10ec0280,102805c2,00100003'
     Controls      : 20
     Simple ctrls  : 9
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=8c3328b5-fcb1-45c9-9030-e800197f729f
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Dell Inc. OptiPlex 3011 AIO
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=78b8b178-67ea-4553-a81f-233cd21d2660 ro quiet splash nomodeset vt.handoff=7
  ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-29-generic N/A
   linux-backports-modules-3.8.0-29-generic  N/A
   linux-firmware                            1.79.6
  RfKill:
   
  Tags:  precise running-unity
  Uname: Linux 3.8.0-29-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 02/22/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X19
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 13
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrX19:bd02/22/2013:svnDellInc.:pnOptiPlex3011AIO:pvr01:rvnDellInc.:rn:rvr:cvnDellInc.:ct13:cvr:
  dmi.product.name: OptiPlex 3011 AIO
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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