ubuntu hangs on Panda 4460 after log out then log in with "ubuntu" option.

The display output I choose is DVI-D because HDMI doesn't work on my side - Bug 1019977:

Panda 4430 board can't boot to desktop via HDMI port with Linaro ubuntu image.

https://bugs.launchpad.net/linaro-ubuntu/+bug/1019977

After plug out the power cable and plug it in, board now can be booted up successfully. According to the output of test command, the unity-3d is available, although there are many driver error information flushing out.

Refer to attachment to get full serial console log output.

The hardware recovery messages should be fixed with the latest pvr-omap4 package available at the PPA. Now for the fist log, it's actually a bug on the kernel side.

Opening also at the TI LT project.

@Ricardo, for Panda 4460 board, this time it doesn't hang, and I even can open firefox browser to watch some YouTube videos, although they still can't be played smoothly.

Observed on hardware pack:

http://snapshots.linaro.org/precise/hwpacks/lt-panda-x11-base/201/hwpack_linaro-lt-panda-x11-base_20120725-201_armhf_supported.tar.gz

with ubuntu rootfs image:

http://snapshots.linaro.org/precise/images/ubuntu-desktop/313/linaro-precise-ubuntu-desktop-20120725-313.tar.gz

linaro@linaro-ubuntu-desktop:~$ ps aux | grep compiz
linaro 3466 5.4 12.6 183024 122792 ? Sl 12:13 0:09 compiz
linaro 3585 0.0 0.0 1360 444 ? Ss 12:13 0:00 /bin/sh -c /usr/bin/compiz-decorator
linaro 3772 0.0 0.0 3200 792 ttyO2 S+ 12:16 0:00 grep --color=auto compiz
linaro@linaro-ubuntu-desktop:~$ ps aux | grep unity
linaro 3520 0.7 1.4 70224 13712 ? Sl 12:13 0:01 /usr/lib/unity/unity-panel-service
linaro 3680 0.5 0.8 68456 8160 ? Sl 12:14 0:00 /usr/lib/unity-lens-applications/unity-applications-daemon
linaro 3682 0.1 0.4 89400 4828 ? Sl 12:14 0:00 /usr/lib/unity-lens-files/unity-files-daemon
linaro 3684 0.2 0.6 81944 6536 ? Sl 12:14 0:00 /usr/lib/unity-lens-music/unity-music-daemon
linaro 3686 0.6 1.1 88656 11320 ? Sl 12:14 0:00 /usr/bin/python /usr/lib/unity-lens-video/unity-lens-video
linaro 3737 0.0 0.3 80048 3440 ? Sl 12:14 0:00 /usr/lib/unity-lens-music/unity-musicstore-daemon
linaro 3753 0.5 1.3 99960 12692 ? Sl 12:14 0:00 /usr/bin/python /usr/lib/unity-scope-video-remote/unity-scope-video-remote
linaro 3774 0.0 0.0 3196 752 ttyO2 S+ 12:16 0:00 grep --color=auto unity
linaro@linaro-ubuntu-desktop:~$ ps aux | grep unity-2d
linaro 3776 0.0 0.0 3196 752 ttyO2 S+ 12:16 0:00 grep --color=auto unity-2d
linaro@linaro-ubuntu-desktop:~$

I will mark this test passed, but the precondition is we need to log out manually and log it in with "ubuntu" option selected.