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[Bug 1024507] Re: 1002:9488 [iMac11, 2] 12.10 quantal boots to black screen on iMac


Ray Perigo, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal:
ubuntu-bug xorg

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  1002:9488 [iMac11,2] 12.10 quantal boots to black screen on iMac

Status in Linux:
Status in linux package in Ubuntu:

Bug description:
  Running 12.10, updated today, on iMac 11,2 (mid 2010) with AMD Radeon 4670.
  Using kernel radeon driver (lsmod shows it running). Normal boot results in black screen. Ctl-Alt-Del reboots; indicating that system did boot. This appears to be a regression in the kernel, similar to bug 597070 (ubuntu 11.04 - used fglrx to get video to work) and to bug 863969 (ubuntu 11.10 - where an upgrade to the 3.2 kernel seemed to improve video detection). Suspend and resume does not work either, not turning off the system, only the video, and resuming to a black screen. I think the problem is in KMS, because the black screen happens even if I boot into text mode and using nomodeset fixes it. Hence filing this against xorg but expect it to go to kernel developers.

  WORKAROUND: Use kernel parameter nomodeset.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: xorg 1:7.7+1ubuntu1
  ProcVersionSignature: Ubuntu 3.5.0-4.4-generic 3.5.0-rc6
  Uname: Linux 3.5.0-4-generic x86_64

  ApportVersion: 2.3-0ubuntu4
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Fri Jul 13 19:12:16 2012
  DistUpgraded: Fresh install
  DistroCodename: quantal
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes,
   Advanced Micro Devices [AMD] nee ATI RV730 XT [Mobility Radeon HD 4670] [1002:9488] (prog-if 00 [VGA controller])
     Subsystem: Apple Inc. Device [106b:00b6]
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120509)
  MachineType: Apple Inc. iMac11,2
   PATH=(custom, no user)
  ProcKernelCmdLine: vmlinuz-3.5.0-4-generic root=UUID=268e7eb7-d871-478c-a906-b719eea881ea ro nosplash nomodeset initrd=EFI\ubuntu\initrd.img-3.5.0-4-generic
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/09/11
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: IM112.88Z.0057.B01.1112090906
  dmi.board.name: Mac-F2238AC8
  dmi.board.vendor: Apple Inc.
  dmi.chassis.type: 13
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-F2238AC8
  dmi.modalias: dmi:bvnAppleInc.:bvrIM112.88Z.0057.B01.1112090906:bd12/09/11:svnAppleInc.:pniMac11,2:pvr1.0:rvnAppleInc.:rnMac-F2238AC8:rvr:cvnAppleInc.:ct13:cvrMac-F2238AC8:
  dmi.product.name: iMac11,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
  version.compiz: compiz 1:0.9.8+bzr3249-0ubuntu2
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.33-3
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3-0ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3-0ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.19.0-1ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.1-1build1

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