** Description changed:

  Binary package hint: compiz
  
  My computer has two users, and they are often logged onto X
  simultaneously. I am one of the users and I use compiz. The problem is
  that when I lock my screen and switch to other VT (using ctrl+alt+fN or
  Fast User Switch Applet), then back to mine I get a white screen instead
  of Gnome unlock dialog. However, the mouse pointer still exists and even
  changes to cursor-like when I point the area where password text box
  should be located. I am able then to enter my password (the screen
  remains completely white) and to press enter. After that I am returned
  to my desktop as if nothing has happened.
  
  I'm running Gutsy. compiz version is 1:0.6.0+git20071008-0ubuntu1.1. I
  have an nvidia video card with nvidia-glx-new 100.14.19+2.6.22.4-14.9
  installed.
  
  TEST CASE:
  1. install hardy on a system with nvidia hardware
  2. install proprietary nvidia driver
  3. run compiz
  4. create a additional user B
  5. use the "fast-user-switching" applet to switch to that user B
  6. switch back to user A
  7. verify that the screen is white
  
  1. install compiz-core from hardy-proposed
  2. restart the X session
  3. use the "fast-user-switching" applet to switch to user B
  4. switch back to user A
  9. verify that the screeen is not white
  10. verify that you can not break out of the lock (compare to bug #145123) by 
pressing key combinations like "alt-tab", "ctrl-alt-arrow" etc
+ 11. Verify that no notifcation daemon message appear when the screen is 
locked over the log (see comment #95)
  
  Steps to reproduce :
  
  1. Login to user 1
  2. Use the fast user switcher applet to login to user 2
  3. Logout from user 2 session
  
  Result : You get a white screen. You have to type your password and the
  white screen will disappears.

-- 
[nvidia] compiz displays white screen when locked
https://bugs.launchpad.net/bugs/160264
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