Kubuntu 10.04, 64 bits, freezes when starting-up

Hi,

It's a bit old issue already, but as the OS images uploaded at the Kubuntu servers are still dated April 29, it means that it are the same images, and hence it have the same problem. So I (finally) have decided to post the bug.

First, I attempted to try Kubuntu 10.04 beta, but the live CD wouldn't even be recognized to initiate the start-up process (by the way, also Fedora 13 KDE 64 bits final release, it has the same problem on my laptop, at least).

Then, I also tried the final release of Kubuntu 10.04 64 bits and the live CD works Ok (I am writing this post on a Kubuntu 10.04 live CD session). However, when I installed the OS to the hard drive... It froze right upon starting up. Then, again and again.. I had to uninstall Kubuntu 10.04.

Googling I found that it happens to several other people this very same problem or very similar ones, like slowing down or sudden general crashes or hang-ups.

The hardware: HP 6735b laptop, Turion Ultra X2, 64 bits, ZM-80, 4GB RAM, ATI Radeon HD 3200.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-21-generic 2.6.32-21.32
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 3275 F.... knotify4
                      ubuntu 3319 F.... kmix
CRDA: Error: [Errno 2] No existe el fichero ó directorio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xd6500000 irq 16'
   Mixer name : 'Analog Devices AD1984A'
   Components : 'HDA:11d4194a,103c30ee,00100400 HDA:11c11040,103c1378,00100200'
   Controls : 18
   Simple ctrls : 11
Date: Mon Jul 12 11:04:12 2010
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.

 pan0 no wireless extensions.
LiveMediaBuild: Kubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
MachineType: Hewlett-Packard HP Compaq 6735b
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/khostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- debian-installer/language=es console-setup/layoutcode?=es
ProcEnviron:
 LANGUAGE=
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
dmi.bios.date: 09/19/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68GTT Ver. F.07
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 30E3
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 96.1C
dmi.chassis.asset.tag: CNU8414XL2
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68GTTVer.F.07:bd09/19/2008:svnHewlett-Packard:pnHPCompaq6735b:pvrF.07:rvnHewlett-Packard:rn30E3:rvrKBCVersion96.1C:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq 6735b
dmi.product.version: F.07
dmi.sys.vendor: Hewlett-Packard