My computer has been able to run Unity with no problems since I installed 11.04 a few months ago. The
unity_support_test script have previously always given a firm yes to the question if Unity is supported. My graphics card is a NVIDIA GeForce GT 330M and I have installed the proprietary driver version 270.41.06.
However, Unity did not start today when I started my computer and logged in, instead I got the "Ubuntu classic" interface. I have restarted a few times and been extra careful to choose "Ubuntu" as session and not "Ubuntu classic" or any other non-Unity alternative, but the result is the same every time, Ubuntu classic and no Unity.
There were some updates yesterday, but I did not recognize anything interface related.
I have read some other questions and answers here, but I did not find anything useful. The only recommendation that I have followed was to install the CompizConfig Settings Manager and to check if the Ubuntu Unity Plugin was activated, but the plugin was already active as it should be.
As a final check before posting this question, I runned the
unity_support_test script and to my surprise the answer was not "yes" but instead the following:
mghg@vaio-ubuntu:~$ /usr/lib/nux/unity_support_test -p X Error of failed request: BadWindow (invalid Window parameter) Major opcode of failed request: 138 (NV-GLX) Minor opcode of failed request: 4 () Resource id in failed request: 0x1ff Serial number of failed request: 31 Current serial number in output stream: 31
Please help me get back to Unity!