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[psyopper <bfranks@xxxxxxxxx>]

*** This bug is a duplicate of bug 419328 ***
    https://bugs.launchpad.net/bugs/419328

I am having the same issue with a Dell Mini 10 (Model 1011), Atom N230
and GMA 945. I successfully, and without any effort, had Compiz enabled
while driving both the LVDS at 1024x576 and the VGA at 1024x768 right of
LVDS in 9.04. Today I upgraded to 9.10 via update manager and now have
this same issue.

Combined width is 2048 which is the max texture size (width) for the 945
chipset. This may not be a bug, but is most definitely a regression
because I have lost functionality over a previous version.

As mentioned in the other bug, success can be had by arranging the
screens vertically:

1. Switch to Metacity (Desktop Effects set to None)
2. Attach external monitor
3. Open Display Settings
4. Arrange external Below LVDS
5. Set proper screen size for the VGA (in my case it's actually 1280x1024)
6. Turn Compiz back on (Desktop Effects set to Extra)

This arrangement nets a virtual resolution of 1280 x 1792 which falls
neatly inside of the accelerated buffer limit of 2048x2048 on the 945.
The problem is, as mentioned, this is a regression from 9.04 (which did
let me arrange them side by side) and is spatially difficult to maintain
as I don't rest my netbook on top of my monitor as the arrangement seems
to make me want to feel.

-- 
[i945gm] [karmic] X servers hangs when settings up dual monitor config
https://bugs.launchpad.net/bugs/438000
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