Dual Monitor (VGA + DVI-I-to-VGA) Problem

This is not specifically Arch related, but maybe someone can help me with this anyway...
My problem is that when I boot up with both monitors plugged in, the BIOS uses the VGA one as primary, then in any OS I can't detect the second monitor hanging on the DVI port in any way, it seems that its like "invisible", like it hasn't been activated by the BIOS or something...
When I boot up with only the DVI monitor plugged in, it works fine and then I can plug in the normal VGA later and the strange thing is that both monitors work properly then!
So my question is - is there a way to make the BIOS "initialize" both monitors or is there a way to "wake" the DVI-plugged monitor up somehow after boot? Cause plugging one monitor out and in for each boot is not a thing I'd like to do on regular basis

My graphics card died a few days ago and now I've got an ATI Radeon X300 card instead, which means I have to start over with dual head configuration...
Now I'm facing the exactly same problem (monitor on DVI port is seen as "disconnected" which is not true), but the ConnectedMonitor option is not working.. it would be awesome if someone could tell me a similar option (to force monitor output) working with the xf86-video-ati (radeon) driver!

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