xorg 6.8 vs 7 on T43

[tartpad]

Hi,

I have a T43 (Radeon Mobility M300), and using CentOS 4 or older Fedora (3), I am able to get what I want, that is: when at work I have a 20" external LCD monitor running at 1600x1200, and when at home just using the built in LCD running at 1400x1050. This by just using a default xorg.conf file from the install.

Now, having upgraded to CentOS 5, and I have also tried Fedora 6, I am not able to get the external monitor to work with higher resolutions than the internal LCD, 1400x1050. I assume this is because of some change in the upgraded xorg 7.x

Have anybody else seen this ? Is there a solution ? (Currently I just downgraded xorg to 6.8, but this brought other problems....)

PS: I am not using dual head or anything fancy like that, and would rather not use the ATI drivers.

Tor

[ConnorBehan]

In the monitor section of xorg.conf, underneath the colour depth you are using should be a resolution or a list of resolutions. Edit it, so that 1600x1200 appears below it.