external monitor stops boot process

[Jorge Rama]

My laptop will not boot into ubuntu if I start the system with an external monitor attached.

After selecting "Ubuntu" screen shows this text:

alloc magic broken at 0xdfbb1680: ff2c001e
Aborted. Press any key to exit

_________

I am then forced to disconnect the monitor and reboot the system.

However if I connect the monitor while "Ubuntu" is loading/loaded I can work with the external monitor without issue.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-17-generic 3.5.0-17.28
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu3
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jorgehsrama 2294 F.... pulseaudio
Date: Thu Oct 25 09:51:50 2012
HibernationDevice: RESUME=UUID=8170e72c-3b1e-48b8-9dd3-f93f30791e6a
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
Lsusb:
 Bus 001 Device 004: ID 04f2:b071 Chicony Electronics Co., Ltd 2.0M UVC Webcam / CNF7129
 Bus 002 Device 002: ID 045e:00dd Microsoft Corp. Comfort Curve Keyboard 2000 V1.0
 Bus 002 Device 003: ID 046d:c016 Logitech, Inc. Optical Wheel Mouse
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: ASUSTeK Computer Inc. K50IN
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=0a689cc1-8f39-4ff3-8297-878646ffed1b ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-17-generic N/A
 linux-backports-modules-3.5.0-17-generic N/A
 linux-firmware 1.95
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to quantal on 2012-07-28 (88 days ago)
dmi.bios.date: 09/21/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 218
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K50IN
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr218:bd09/21/2009:svnASUSTeKComputerInc.:pnK50IN:pvr1.0:rvnASUSTeKComputerInc.:rnK50IN:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr:
dmi.product.name: K50IN
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

[Joseph Salisbury (jsalisbury)]

Does this only happen with a specific model of monitor? Have you tried other monitors?

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.7 kernel[0] (Not a kernel in the daily directory) and install both the linux-image and linux-image-extra .deb packages.

Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. Please only remove that one tag and leave the other tags. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.7-rc2-raring/

[Jorge Rama (jorgehsrama)]

I have not yet tested with an alternative monitor, but I tested kernel v.3.7-rc2-quantal and the problem continues.

I should also state that this issue also prevents Windows from booting when I select it from grub.

[Jorge Rama (jorgehsrama)]

Also tested with alternative monitor. The issue persists.

[Jorge Rama (jorgehsrama)]

Issue persists in Ubuntu 13.04

[penalvch (penalvch)]

Jorge Rama, as per http://www.asus.com/Notebooks_Ultrabooks/K50IN/#support_Download_8 an update is available for your BIOS (223). If you update to this, does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Jorge Rama (jorgehsrama)]

Thank you!! Updating the BIOS solved the issue.

[penalvch (penalvch)]

Jorge Rama, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1071200/comments/8 regarding this being fixed with a BIOS update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.