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[Nick Lawson <617211@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: compiz-fusion-plugins-main

Tested on:  Fresh install of 10.04
Note that I'm assuming that 'fade windows' comes from the main plugins package - it did not seem to be in either?  Maybe its part of the core?

The "Fade Windows" plugin is used by several other plugins (such as the
ADD helper).  If one of those plugins causes it to rapidly fade and
unfade, it can get stuck faded.  This only happens when in "constant
time' mode - constant speed never sticks.

To cause this problem:
* Enable Fade Windows
* Switch Fade Windows to "Constant Time" instead of "Constant Speed".
* Cause windows to rapidly fade and unfade (the goal is to have a fade overlap an unfade on the same window).

My favorite way to reproduce this is to turn on another plugin like ADD
helper (Which makes unfocused windows fade) and then turn on Ubuntu's
"Select Windows When the mouse moves over them" option (in
system->preferences->windows).  Then just put two windows on your
desktop and shake the mouse rapidly between them to cause them to
flicker.  Note that you HAVE to have 'constant time' not 'constant
speed' selected.

There's probably an easier way to reproduce this, by turning the fade
time very high so you have plenty of time to cause multiple fades to
begin on the same window or something.

Note that even without trying to cause this to happen, after about a day
of using the machine, all windows will inevitably have had the fade
effect stick just due to alt/tab or popup windows or such... so the only
workaround is to make sure its set to "constant speed".

** Affects: compiz-fusion-plugins-main (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  Binary package hint: compiz-fusion-plugins-main
+ 
+ Tested on:  Fresh install of 10.04
+ Note that I'm assuming that 'fade windows' comes from the main plugins package - it did not seem to be in either?  Maybe its part of the core?
  
  The "Fade Windows" plugin is used by several other plugins (such as the
  ADD helper).  If one of those plugins causes it to rapidly fade and
  unfade, it can get stuck faded.  This only happens when in "constant
  time' mode - constant speed never sticks.
  
  To cause this problem:
  * Enable Fade Windows
  * Switch Fade Windows to "Constant Time" instead of "Constant Speed".
  * Cause windows to rapidly fade and unfade (the goal is to have a fade overlap an unfade on the same window).
  
  My favorite way to reproduce this is to turn on another plugin like ADD
  helper (Which makes unfocused windows fade) and then turn on Ubuntu's
  "Select Windows When the mouse moves over them" option (in
  system->preferences->windows).  Then just put two windows on your
  desktop and shake the mouse rapidly between them to cause them to
  flicker.  Note that you HAVE to have 'constant time' not 'constant
  speed' selected.
  
  There's probably an easier way to reproduce this, by turning the fade
  time very high so you have plenty of time to cause multiple fades to
  begin on the same window or something.
  
  Note that even without trying to cause this to happen, after about a day
  of using the machine, all windows will inevitably have had the fade
  effect stick just due to alt/tab or popup windows or such... so the only
  workaround is to make sure its set to "constant speed".

-- 
Fade Windows can get stuck if rapidly toggled
https://bugs.launchpad.net/bugs/617211
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