I'm running a dual head system of two graphics cards. 1) AGP radeon 9550, and 2) PCI 64MB radeon 7000.

When I open or close windows on the monitor run by the AGP card the other monitor will black out for about 1-2 secs. Also moving windows around on either monitor will make the screen run by the PCI card black out briefly.

Does this behaviour sound familiar to anyone?


Am running etch, with GNOME. Both display are LCD. I've tried various options in xorg.conf.