pc fails to suspend/shutdown after dual monitors were used

[montini]

After the external monitor is used, closing laptop lid causes the constant blinking of the "Sleep" LED (Thinkpad R61) but the laptop fails to go to standby. I am using the opensource nvidia graphics driver with 3D capabilities enabled. The closed source driver from nvidia does not produce such behaviour. The system is oneiric ocelot (but the behaviour was the same on natty).

Description: Ubuntu oneiric (development branch)
Release: 11.10

$ glxinfo |grep -i "\(render\|opengl\)"
direct rendering: Yes
OpenGL vendor string: nouveau
OpenGL renderer string: Gallium 0.4 on NV86
OpenGL version string: 2.1 Mesa 7.11
OpenGL shading language version string: 1.20
OpenGL extensions:
    GL_NV_conditional_render, GL_ARB_ES2_compatibility,

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Bryce Harrington (bryce)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command in a terminal after reproducing the issue, and it it will automatically gather debugging information needed for this bug:

  apport-collect 864256

[bugbot (bugbot)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.