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[Bug 720679] [NEW] Compiz clears the root window in the installer session


Public bug reported:

Binary package hint: compiz

In both Maverick and Natty, when replacing metacity with compiz in the
installer session, the root window gets initially painted by /usr/bin
/ubiquity-dm (you can see it for about a second) and then cleared to
black by compiz.  There do not appear to be any windows set to

To reproduce:
Boot a live CD and press a key when you see the 'man = keyboard' icon.  Select a language then hit F6 over the first option. This will bring up the kernel command line.  Add 'break=bottom maybe-ubiquity' just before '--', leaving a space between them, then hit enter to boot.

This should then bring you to an initramfs prompt.  Type 'chroot root
bash' then 'sed -i "s/'metacity'/'compiz'/g" /usr/bin/ubiquity-dm'.
Type exit and exit again.

You should now be booted into the live session using compiz.  The screen
will be black, despite the code in /usr/bin/ubiquity-dm that attempts to
paint to the root window.  'DISPLAY=:0 xsetroot -solid red' from a VT
will also not work.

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

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  Compiz clears the root window in the installer session

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