[Bug 768263] Re: Ubuntu 11.04 beta 2 won't boot (blank screen)

[Christopher M. Penalver]

Vidar Hoel, thank you for reporting this and helping make Ubuntu better.
Natty reached EOL on October 2012. Please see the following document for
currently supported Ubuntu releases https://wiki.ubuntu.com/Releases .

We were wondering if this is still an issue in a supported release? If
so, could you please test for this with the latest development release
of Ubuntu? ISO CD images are available from
http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you please provide the information
following https://wiki.ubuntu.com/DebuggingCasper ?

Please let us know your results. Thank you for your understanding.

Helpful Bug Reporting Tips:
https://help.ubuntu.com/community/ReportingBugs

Changing package from linux to casper. Please advise if incorrect
procedure.

** Package changed: linux (Ubuntu) => casper (Ubuntu)

** Changed in: casper (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/768263

Title:
  Ubuntu 11.04 beta 2 won't boot (blank screen)

Status in “casper” package in Ubuntu:
  Incomplete

Bug description:
  I made a bootable USB stick from the Ubuntu 11.04 beta 2 desktop-iso (AMD64). When I boot it on my Lenovo U350, it imitatively crashes. The screen is almost blank, but there are some unreadble text on the screen. The font is about 5x10cm on my 13" screen.
  It has clearly crashed.

  This happens in under 1 sec after the USB-stick is first read. After
  this crash nothing happens, the USB-stick is not read. And after 10
  sec, the laptop reboots.

  I have tried this stick in other machines, there it works perfectly.

  (As you see, I already have have Ubuntu 10.10 installed on this
  computer, but I want to do a fresh install of 11.04 Beta 2.)

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: linux-image-2.6.35-28-generic 2.6.35-28.50
  Regression: Yes
  Reproducible: Yes
  ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
  Uname: Linux 2.6.35-28-generic x86_64
  NonfreeKernelModules: wl
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sitron     1508 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf4600000 irq 48'
     Mixer name	: 'Intel Cantiga HDMI'
     Components	: 'HDA:14f15066,17aa4001,00100300 HDA:80862802,80860101,00100000'
     Controls      : 10
     Simple ctrls  : 5
  Date: Thu Apr 21 13:17:38 2011
  HibernationDevice: RESUME=UUID=d8ead2a1-896b-4093-944a-738a816e9759
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  MachineType: LENOVO IdeaPad U350
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.35-28-generic root=UUID=eb8f1953-f197-45f7-a17f-19ca1f557a7a ro quiet splash
  RelatedPackageVersions: linux-firmware 1.38.6
  RfKill:
   0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  dmi.bios.date: 11/10/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 1CCN24WW
  dmi.board.name: LL1
  dmi.board.vendor: Lenovo
  dmi.board.version: Rev 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Lenovo
  dmi.chassis.version: Rev 1.0
  dmi.modalias: dmi:bvnLENOVO:bvr1CCN24WW:bd11/10/2009:svnLENOVO:pnIdeaPadU350:pvrRev1.0:rvnLenovo:rnLL1:rvrRev1.0:cvnLenovo:ct10:cvrRev1.0:
  dmi.product.name: IdeaPad U350
  dmi.product.version: Rev 1.0
  dmi.sys.vendor: LENOVO

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