mitxs@testing:~$ /usr/lib/nux/unity_support_test -p
OpenGL vendor string:   nouveau
OpenGL renderer string: Gallium 0.4 on NV46
OpenGL version string:  2.1 Mesa 9.0

Not software rendered:    yes
Not blacklisted:          no
GLX fbconfig:             yes
GLX texture from pixmap:  yes
GL npot or rect textures: yes
GL vertex program:        yes
GL fragment program:      yes
GL vertex buffer object:  yes
GL framebuffer object:    yes
GL version is 1.4+:       yes

Unity 3D supported:       no
mitxs@testing:~$ 

My card is blacklisted, so I haven't 3D acceleration.
The screen corruption is solved if i load a unity session or xfce session.

The problem occurs if I set UNITY_FORCE_START=1 in /etc/environment, and
try unity. Then the screen is corrupted.

This is relationated with 
http://askubuntu.com/questions/37629/geforce-go-7300-7400-blacklisted-can-i-still-run-unity

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu.
https://bugs.launchpad.net/bugs/1061209

Title:
  screen corruption  [nvidia Geforce Go 7400]

Status in “xserver-xorg-video-nouveau” package in Ubuntu:
  New

Bug description:
  Testing latest Ubuntu release iso, (ubuntu-12.10-beta2-desktop-i386 iso), 
after installing, when I click on menu button of the launcher, the screen 
images are corrupted.
  When load the display manager, sometimes the screen blink and I have to 
switch to a virtual console.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1061209/+subscriptions

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