Ok, I've managed to get a semi-working Xserver module, but I still want to work on it some more. In the meantime, I've discovered that the only reason that my colourmap was screwed up under X using the framebuffer Xserver was because of the default fb depth (which is 8). When I did 'fbset -depth 16' and then started X with the config below, KDE popped right up and in the correct colours :-) Word of warning, 24-bit depth doesn't work yet, apparently, so keep the colour depth at either 8 or 16 for now.
This should buy more time for getting the Radeon Mobility patches into XFree86 4.1.0 :-P Here's my XF86Config-4: # XF86Config-4 (XFree86 server configuration file) generated by Dexconf, the # Debian X Configuration tool, using values from the debconf database. # # Edit this file with caution, and see the XF86Config manual page. # (Type "man XF86Config" at the shell prompt.) Section "Files" FontPath "unix/:7100" # local font server # if the local font server has problems, we can fall back on these FontPath "/usr/lib/X11/fonts/misc" #FontPath "/usr/lib/X11/fonts/cyrillic" FontPath "/usr/lib/X11/fonts/100dpi/:unscaled" FontPath "/usr/lib/X11/fonts/75dpi/:unscaled" FontPath "/usr/lib/X11/fonts/Type1" FontPath "/usr/lib/X11/fonts/Speedo" FontPath "/usr/lib/X11/fonts/100dpi" FontPath "/usr/lib/X11/fonts/75dpi" EndSection Section "ServerFlags" EndSection Section "Module" Load "ddc" Load "GLcore" Load "dbe" #Load "dri" Load "extmod" Load "glx" Load "pex5" Load "record" Load "xie" Load "bitmap" Load "freetype" Load "speedo" Load "type1" Load "vbe" Load "int10" EndSection Section "InputDevice" Identifier "Generic Keyboard" Driver "keyboard" Option "CoreKeyboard" Option "XkbRules" "xfree86" Option "XkbModel" "macintosh" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/input/mice" Option "Protocol" "ImPS/2" Option "Emulate3Buttons" "true" Option "ZAxisMapping" "4 5" EndSection Section "Device" Identifier "Radeon Mobility M6" Driver "fbdev" Option "UseFBDev" "true" #Option "ShadowFB" "false" EndSection Section "Monitor" Identifier "LCD" HorizSync 30-68 VertRefresh 50-85 Option "DPMS" EndSection Section "Screen" Identifier "Default Screen" Device "Radeon Mobility M6" Monitor "LCD" DefaultDepth 16 SubSection "Display" Depth 8 Modes "1152x768" EndSubSection SubSection "Display" Depth 15 Modes "1152x768" EndSubSection SubSection "Display" Depth 16 Modes "1152x768" EndSubSection SubSection "Display" Depth 24 Modes "1152x768" EndSubSection EndSection Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection Section "DRI" Mode 0666 EndSection # end of XF86Config