I am running Myth .20 on FC6 with an ATI X850. I tried modifying my xorg.conf file with the settings you suggested.
Code:
[mythtv@myth ~]$ cat /etc/X11/xorg.conf
# Xorg configuration created by pyxf86config
Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "aticonfig-Screen[0]" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
EndSection
Section "Module"
Load "glx"
Load "dbe"
Load "v4l"
Load "extmod"
Load "type1"
Load "freetype"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]"
Driver "fglrx"
Option "TVFormat" "NTSC-M"
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "640x480"
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "Disable"
EndSection
Along with the most recent ATI Linux driver (8.35.5), this is working well for everything except the PIP in the guide section. Can you let me know what the other steps were to resolve this? Was this on the SVN or still on .20? Are you using the ATI drivers or something else?
Thanks.