Oneiric alpha 2 live session freezes on startup

Bug #807584 reported by Jussi Pakkanen on 2011-07-08
This bug affects 1 person
Affects Status Importance Assigned to Milestone

Bug Description

I booted the oneiric alpha 2 ISO (mac 64 bit). The welcome screen shows up asking to try or install. I click on live session. Then the application tries to do something and just freezes. You can shutdown the machine with the top bar button but that's about it.

It did work for me once, but all subsequent tries have failed.
Architecture: amd64
DistroRelease: Ubuntu 11.10
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64+mac (20110705.1)
Package: xorg 1:7.6+7ubuntu1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.0-3.4-generic 3.0.0-rc5
Tags: oneiric running-unity unity-2d
Uname: Linux 3.0-3-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

tags: added: iso-testing
Paolo Rotolo (paolorotolo) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 807584
When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at

Changed in ubiquity (Ubuntu):
status: New → Incomplete
Brian Murray (brian-murray) wrote :

Not a bug with the installer rather its likely a bug with xorg or the kernel driver.

affects: ubiquity (Ubuntu) → xorg (Ubuntu)
Brian Murray (brian-murray) wrote :

You should be able to launch a terminal using the key sequence "Ctrl + T".

tags: added: oneiric
Bryce Harrington (bryce) on 2011-07-12
Changed in xorg (Ubuntu):
status: Incomplete → New
status: New → Incomplete
Jussi Pakkanen (jpakkane) wrote :

Ctrl-t does not work, with or without shift. However I just discovered something stranger:

If I change language with the list on the left and click "try ubuntu" there is no freeze.

If I click on some language, then english again and then "try ubuntu" there is no freeze.

If I just click on "try ubuntu" it freezes.

apport information

tags: added: apport-collected running-unity unity-2d
description: updated
Bryce Harrington (bryce) wrote :

Hi Jussi,

Can you still reproduce this issue using a daily iso from today?

Changed in xorg (Ubuntu):
status: Incomplete → New
status: New → Incomplete
Jussi Pakkanen (jpakkane) wrote :

Yes, it's exactly the same.

Bryce Harrington (bryce) wrote :

Please install xdiagnose, reproduce the freeze, and then run this command:

  apport-collect 807584

Also, please reproduce the issue and then gather output from dmesg and the file /sys/kernel/debug/dri/0/i915_error_state

Changed in xorg (Ubuntu):
status: Incomplete → New
status: New → Incomplete
Jussi Pakkanen (jpakkane) wrote :

I can't do that because I can't launch a terminal, switching to text console does not work and you can't ssh in the machine.

However, X itself is not frozen. I can move the mouse, activate top panel thingies and so on. Pressing the power button shuts down the machine cleanly.

I have run apport-collect on this machine many times and the data can be found in e.g. bug 801034.

Bryce Harrington (bryce) wrote :

Hmm, well since you can click on stuff to shut down and whatever, it doesn't sound like X or the GPU has locked up. Perhaps some fault in something outside X. But the report is entirely non-actionable without logs, sorry.

affects: xorg (Ubuntu) → ubuntu
Changed in ubuntu:
status: Incomplete → Invalid
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