Bug#523589: xserver-xorg-video-radeon: dualhead broke with upgrade

[di dit]

2009/4/15 Alex Deucher <alexdeucher at gmail.com>:
> Sounds like:
> https://bugs.freedesktop.org/show_bug.cgi?id=21199

Indeed.

> Does:
> xset dpms force off
> followed by moving the mouse cause both screens to come on?

Yes it does. Thanks for the workaround!
I'm ready to test patches to solve this issue if needed.
Thank you very much for your help.