ubuntu-x-swat team mailing list archive

[Bryce Harrington <737891@xxxxxxxxxxxxxxxxxx>]

Andres, can you confirm that this happens when booted into Classic
Desktop (no effects)?  It appears from your bug report that compiz (or
kwin compositing) is turned off, but I want to be doubly sure this is
true.

The reason is that upstream says that this bug is because there is a
4096x4096 maximum texture hardware limitation for compositing with this
Arrandale chip.  So you either need to disable compositing, or arrange
your screens to not exceed this limit.

>From your log files it appears your laptop is 1280x800 and you have a
3840x1080 monitor, which totals to 5120, and since that's larger than
4096 the graphics card can't handle it.

(Is this correct, that you have a 3840x1080 monitor?)

A way to work around this limitation would be to have your laptop
monitor positioned above or below your external monitor.

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https://bugs.launchpad.net/bugs/737891

Title:
  [Arrandale] gnome-display-properties unable to correctly enable
  monitors connected to VGA