ubuntu-x-swat team mailing list archive

["James D. Hasselman" <jhass840@xxxxxxxxxxxxxxxxx>]

Ubuntu Version: 9.10
Architecture: 64-bit
Graphics Card: GeForce 8600 GT
Driver Version: 185.18.36

I first noticed this bug after installing Ubuntu 9.10.  Upon booting for
the first time Ubuntu recommended that I install the NVIDIA graphics
driver in order to take full advantage of my graphics card.  I have a
similar experience with this bug and I shall provide you a list of steps
that you can take to reproduce it.

What I expected:  
When I release the mouse under a black notification box, the window should remain transparent until I move the mouse away.  Then the system should continue to function normally.

What happened:
Well, I was dragging an application window around my desktop and I happened to release it while the mouse was under one of the black notification windows and my screen began to flash violently and eventually my system locked up completely forcing me to do a hard reboot.

Steps to reproduce:
1.  System -> Administration -> Hardware Drivers
2.  Install/Activate NVIDIA accelerated graphics driver (version 185)
3.  Reboot
4.  System -> Preferences -> Appearance
5.  Go to the Visual Effects tab and click Extra
6.  Close the Appearance window
7.  Open an application or folder of your choice.  It doesn't matter what it is, the point is that you need a window which can be dragged
8.  Do something that causes a notification window to appear.  I had my buddy IM me.
9.  When the notification window pops up grab a window and drag it until the mouse "hand icon" is under the notification window.  The notification window should become transparent at this point.
10.  Release the window
11.  Close your eyes if you have a seizure disorder (not joking)

I would provide you with log files, but none of them seem to have
anything useful.  If you would like them anyway please let me know and I
will provide them.

Temporary Fix:
Disabling desktop effects altogether eliminates this problem since there is no way to make a notification window turn transparent.

-- 
screen starts flashing and freezes or crashes X
https://bugs.launchpad.net/bugs/379228
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