Comment 49 for bug 140051

As previously reported, DDC works as expected when booting the X server and AMD driver available in my PPA on hardware booting from a hard-disk.

However, one thing I forgot to point out is that I get really psychedelic colors, presumably because the maximum color depth is not correctly detected.

On LTSP, adding the following option to lts.conf works well in a pinch:

X_COLOR_DEPTH=24

On a desktop based on the same chipset, adding the following option to the Screen section in /etc/X11/xorg.conf produces the same effect:

DefaultDepth 24

We're still investigating the cause of this failed maximum depth detection. Stay tuned.