I have the same problem with a nvidia card (7300 LE), the problem is the same but instead of a black screen I get a white one. If I disable desktop efects from both user it works fine otherwise not. Even though a white screen shows when switching users you can type your password and enter and you will be able to login, but it is not what all we want, is it?
I hope my version of the problem can help solving the entire problem.
I have the same problem with a nvidia card (7300 LE), the problem is the same but instead of a black screen I get a white one. If I disable desktop efects from both user it works fine otherwise not. Even though a white screen shows when switching users you can type your password and enter and you will be able to login, but it is not what all we want, is it?
I hope my version of the problem can help solving the entire problem.
Thanks in advance.