I'm running Ubuntu 10.4 (Lucid) and I had this problem with getting a black screen when switching users also.
Following Igor's advice fixed it for me.
The steps I took were:
1. Download the nvidia-96 96.43.18-0ubuntu1 package from http://packages.ubuntu.com/maverick/nvidia-96
2. Install the package with the following command: sudo dpkg -i nvidia-96_96.43.18-0ubuntu1_i386.deb
3. Restart the computer
Since then everything works perfectly. Thanks to Igor and the rest of you for the support!
I'm running Ubuntu 10.4 (Lucid) and I had this problem with getting a black screen when switching users also.
Following Igor's advice fixed it for me.
The steps I took were:
1. Download the nvidia-96 96.43.18-0ubuntu1 package from http:// packages. ubuntu. com/maverick/ nvidia- 96 96_96.43. 18-0ubuntu1_ i386.deb
2. Install the package with the following command: sudo dpkg -i nvidia-
3. Restart the computer
Since then everything works perfectly. Thanks to Igor and the rest of you for the support!