Comment 12 for bug 745839

@Bryce, you wrote

> No, not really a driver issue. Rather, you're pushing the hardware beyond its capabilities.

> The X300 radeon card in the Xpress 200M is capable only of a maximum 2048x2048 combined screen dimension when running compiz. See bug #555641.

Appreciate your time in looking into this, and your explanation.
While I agree that the driver may not support going beyond 2048 x 2048, I disagree that the hardware is not capable of doing it.

For the past (nearly) two years since Jaunty, I have been using this same notebook with Xpress 200M, enjoying full compiz capability at extended desktop mode with 1440x900 (LCD on video out) + 1280x1024 (notebook LCD). All these with the whistle and bells of 3d desktop etc etc. So, clearly the hardware is capable of compiz effects at larger than 2048x2048.

Granted, the new driver and driver model (DRM etc) may assume or put contraints on the Xpress 200M graphics hardware, and understandably, such constraints cannot be easily fixed.

I'll try with the up-down layout instead of the left-right layout and update this thread again.

Thanks again for all the replies.