[Bug 633596] [NEW] blank screen on bootup with HP Touchsmart tm2t laptop

[rattboi]

Public bug reported:

When starting up with an Ubuntu Maverick Meerkat beta liveUSB, after
grub, the screen goes blank and never returns.

I found that using the option "acpi=off" is the only way I've gotten the
screen to show back up. I tried many other grub options, such as
i915.modeset=1, i915.modeset=0, radeon.modeset=1, radeon.modeset=0,
nomodeset, vga=771, etc.

This laptop has hybrid ATI/Intel graphics. In Lucid Lynx, by default it
would boot to using the Intel card, but with both cards powered on. I'm
currently using a custom kernel build in Lucid of 2.6.34, with the
vga_switcheroo module.

Turning ACPI off was the only option I've found that works.

One thing I noticed is that once I'm booted with ACPI off, there is no
vga_switcheroo module loaded. I assumed that by 2.6.35, that module
would be available.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-19-generic 2.6.35-19.28
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic x86_64
AcpiTables:
 Error: command ['gksu', '-D', 'Apport', '--', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 1: Traceback (most recent call last):  File "/usr/share/apport/dump_acpi_tables.py", line 52, in <module>
     dump_acpi_tables('/sys/firmware/acpi/tables', sys.stdout)
   File "/usr/share/apport/dump_acpi_tables.py", line 43, in dump_acpi_tables
     tables = os.listdir(path)
 OSError: [Errno 2] No such file or directory: '/sys/firmware/acpi/tables'
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: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 Cannot stat file /proc/2978/fd/43: Stale NFS file handle
                      USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ubuntu     2983 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xc4500000 irq 23'
   Mixer name	: 'IDT 92HD81B1X5'
   Components	: 'HDA:111d7605,103c1486,00100402'
   Controls      : 14
   Simple ctrls  : 9
Card1.Amixer.info:
 Card hw:1 'Generic'/'HD-Audio Generic at 0xc4420000 irq 24'
   Mixer name	: 'ATI R6xx HDMI'
   Components	: 'HDA:1002aa01,00aa0100,00100200'
   Controls      : 4
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [off]
Date: Wed Sep  8 22:04:25 2010
LiveMediaBuild: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100906)
MachineType: Hewlett-Packard HP TouchSmart tm2 Notebook PC
ProcCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/hostname.seed boot=casper acpi=off BOOT_IMAGE=/casper/vmlinuz
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
dmi.bios.date: 06/03/2010
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1486
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 83.15
dmi.chassis.asset.tag: CNU0301PCZ
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.05:bd06/03/2010:svnHewlett-Packard:pnHPTouchSmarttm2NotebookPC:pvr0489200000252A20001220000:rvnHewlett-Packard:rn1486:rvrKBCVersion83.15:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: HP TouchSmart tm2 Notebook PC
dmi.product.version: 0489200000252A20001220000
dmi.sys.vendor: Hewlett-Packard

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kernel-config maverick needs-upstream-testing regression-potential

-- 
blank screen on bootup with HP Touchsmart tm2t laptop
https://bugs.launchpad.net/bugs/633596
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.