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

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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

** Affects: casper (Ubuntu)
     Importance: Medium
         Status: Incomplete


** Tags: amd64 apport-bug kernel-uncat maverick needs-upstream-testing regression-release
-- 
Ubuntu 11.04 beta 2 won't boot (blank screen)
https://bugs.launchpad.net/bugs/768263
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