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[Launchpad Bug Tracker <335803@xxxxxxxxxxxxxxxxxx>]

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Its a bit of a strange bug, i think it might be related to the fact that
i installed KDE 4.2 using the method discribed at
http://www.kubuntu.org/news/kde-4.2 i.e. adding the custom reporatories.

The best way to describe this bug is by giving an example.

Open LYX ( which uses the Qt libraries ) and open a file. Everything
looks grand if you use the up and down arrows to navagate, it gets the
hint to redisplay, but if you use the middle mouse button nothing moves!
Well actually you can see the the blinking Text Cursor has moved to
where it is expected to be by moving the middle mouse button but the
rest of the text hasn't moved at all!

To get the rest of the text to move you need to click into the text area
before anything changes.

And as the title of this bug says this only ever happens when compiz is
turned on! If i go to System > Preferences > appearance > Visual Effects
and set the effects to "NONE" then the problem has gone away. But of
course i can't use any of the useful compiz stuff then in gnome ;)

I've tried to disable the Window Decoration in Compiz cos i thought that
would help but it leaves all of my windows without a title bar and it is
impossible to do anything with.

Anyone able to lend a hand in figuring out what exactly is wrong with
this?

Oh and i'm using Ubuntu 8.10 btw

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New

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qt applications have render update delay in gnome when compiz is enabled
https://bugs.edge.launchpad.net/bugs/335803
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