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[Justin Stressman <jstressman@xxxxxxxxx>]

Linux 3.13.0-32-generic x86_64

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https://bugs.launchpad.net/bugs/1307097

Title:
  Blank / Black screens on boot half the time [R9 280X]

Status in Ubuntu GNOME:
  Invalid
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I have 3 monitors hooked up.

  Roughly every other time I reboot, I get past my grub screen and then
  the left and right side monitors are on and "awake" but blank, and the
  center screen never comes out of sleep mode.

  The boot never progresses past this point and you can't switch to
  another virtual console or anything. It's just apparently frozen
  there.

  If I hit the reset button on the case, it usually boots to the login
  screen just fine the next time around.

  From Details:
  Memory: 11.7 GiB
  Processor: Intel® Core™ i7 CPU 965 @ 3.20GHz × 8
  Graphics: Gallium 0.4 on AMD TAHITI
  OS type: 64-bit
  System up to date

  From lspci -vv:
  02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti XT [Radeon HD 7970/8970 OEM / R9 280X] (prog-if 00 [VGA controller])
   Subsystem: PC Partner Limited / Sapphire Technology Device 3000
   Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0, Cache Line Size: 256 bytes
   Interrupt: pin A routed to IRQ 80
   Region 0: Memory at d0000000 (64-bit, prefetchable) [size=256M]
   Region 2: Memory at fba80000 (64-bit, non-prefetchable) [size=256K]
   Region 4: I/O ports at b000 [size=256]
   Expansion ROM at fbac0000 [disabled] [size=128K]
   Capabilities: <access denied>
   Kernel driver in use: radeon

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