ubuntu-x-swat team mailing list archive

[Jim Thomas <665546@xxxxxxxxxxxxxxxxxx>]

Sorry for the string of comments but I've got one more piece of
information.  As Roger posted above setting visual effects to none
appears to solve the problem.  However that is not the end of it.  Using
the Edit menus approach in my previous post I visited some but not all
of the menus while visual effects were disabled.  They all popped up
immediately.  Then I changed visual effects back to 'extra' and
immediately went through the Applications menu.  All of the menus I
'touched' while effects were off came up on the first visit while none
of the ones I did not 'touch' did.

So this tells me that the root cause of the odd behavior exists
irregardless of which visual effect mode is being used.  It is just that
without effects it does not manifest itself.  I feel this reinforces my
theory that we are violating timing somewhere due to a stack up of
delays with cache hits/misses likely causing the timing variation.
Using visual effects uses up enough of the timing margin to push cache
misses into causing problems.

Sadly I'm not familiar with how the mouse movement drives menu display
through all of the library layers so I have no idea where to look in
source code to continue further.  I'll have to leave that to the devs
and hope that these observations prove fruitful.

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https://bugs.launchpad.net/bugs/665546

Title:
  Drop and sub menus don't always show up