Comment 2 for bug 509329

I have a laptop (Sony Vaio VGN-SR51MF/S) which I use together with an external monitor (Benq G2410HD). I'm running Kubuntu Lucid (development version, latest updates installed).
The video card is an Ati Monility Radeon 4530 HD; i'm using the xserver-xorg-video-ati drivers.

When looking at Screen settings, there is printed (Auto) after the correct native resolutions for both the laptop screen as the external monitor, so it can detect which settings are "preferred".

What the system does when booting while the HDMI cable is already connected and the external monitor is switched on, is that it enables the external monitor in clone mode (which is good), but it sets both displays to 1024x768. This resolution is lower than both the native resolution of my laptop (1280x800) and the native resolution of my external monitor (which is 1920x1080).

What I would expect that if the system can detect (which it can do) which resolution is the native resolution, it would enable clone mode and set the resolutions to the respective *native resolutions* instead of setting them both to 1024x768.

This bug was already filed as https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/509329 on ubuntu launchpad.