Comment 133 for bug 160264

I have an nvidia card and am running Ubuntu 8.10. I also have this bug.

What I've found though is that the screen renders white -but my system doesn't crash. In fact, if I enter my password, I log back into my account and everything is totally fine: no rendering problems, no functionality issues.

I've come to the conclusion that this is a rendering bug that renders all content (but the cursor) as white. When I enter my password (since the password input field has focus by default), the screen fades to normal from white.

Additionally, I'd like to note that when I switch to ANOTHER user (i.e. User2 [myself being User1]), I'm able to see the login window with a black background.

So to get the full results I've encountered, follow these steps:

1. Install Ubuntu 8.10 on a system with nvidia hardware. Enable compize/desktop effects.
2. create a secondary user account.
3.a switch from User1 to User2 (fast-user-switching).
3.b when switching to User2, you'll be prompted for a password within the standard GDM login.
4. once logged in, switch back to User1. do NOT log out.
5. the screen blanks to white, type in your password and hit Enter.
6. you should see User1's desktop.
7. switch back to User2 and this time the "locked screen" login is visible. Black background with visible dialog (borderless).

- from this point forward, performing these actions will return the same results.

Perhaps this is a permissions issue with rendering? Just a thought.

Special things to take into consideration:
User2 is just a regular user without any administrative privileges.
Both users have desktop effects enabled.

If a developer would like to contact me with further questions please send them to patryk at digital dash evolutions dot com.

Would love to have this fixed.