The compiz change is uploaded to hardy-proposed and is waiting for
approval.
I would appreciate if you could try any creative ways to break the lock
of the screensaver that you can find. Ctrl-alt-mouse-move, switchting
between virtual terminals etc. We need to be very careful that this does
not reopen the security problem we fixed when we added the
30_fix_screensaver patch.
Thanks,
Michael
** 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. lock the screen with ctrl-alt-l
- 5. verify that the screen is white
+ 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
- 6. install compiz-core from hardy-proposed
- 7. restart the X session
- 8. lock the screen with ctrl-alt-l
+ 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
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.
** Changed in: compiz (Ubuntu Hardy)
Importance: Undecided => Medium
Assignee: (unassigned) => Michael Vogt (mvo)
Status: New => Fix Committed
--
[nvidia] compiz displays white screen when locked
https://bugs.launchpad.net/bugs/160264
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