Getting my Pioneer PDP436-XDE to display MythTV is easy and not so easy at the same time. First off, automatic xorg configuration does not work, but with the proprietary NVidia drivers there is a 720p option.
While the panel itself has a resolution of 1024×768 pixels and a 16:10 aspect ratio the electronics espects either a 1080p or 720p signal on the HDMI input.
So I have to get the X server to output a signal at 1280x720p. I tried using the integrated Intel 945 graphics but had no luck. If anyone has gotten his system to output 1280x720p with Intel graphics let me know in the comments or contact me here.
Mythbuntu has a very minimal xorg.conf file after installation relying heavily on automatic configuration of the X server and correct EDID information that needs to be provided by the display. Unfortunately automatic configuration did not work as expected so I had to slightly modify my xorg.conf file to work correctly with my plasma display.
# XORG.CONF for 1280x720p on a Pioneer Plasma via DVI with NVidia graphics
# NVidia proprietary driver
Section „ServerLayout“
Identifier „Simple Layout“
Screen „Screen 1“ 0 0
InputDevice „Mouse1“ „CorePointer“
InputDevice „Keyboard1“ „CoreKeyboard“
EndSectionSection „Files“
FontPath „/usr/share/fonts/misc/“
FontPath „/usr/share/fonts/TTF/“
FontPath „/usr/share/fonts/Type1/“
FontPath „/usr/share/fonts/75dpi/“
FontPath „/usr/share/fonts/100dpi/“
EndSectionSection „Module“
Load „dbe“ # Double buffer extension
SubSection „extmod“
Option „omit xfree86-dga“ # don’t initialise the DGA extension
EndSubSection
Load „type1“
Load „freetype“
Load „glx“
EndSectionSection „InputDevice“
Identifier „Keyboard1“
Driver „kbd“
Option „AutoRepeat“ „500 30“
# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
Option „XkbModel“ „pc104“
Option „XkbLayout“ „us“
EndSection
Section „InputDevice“
Identifier „Mouse1“
Driver „mouse“
Option „Protocol“ „Auto“
Option „Device“ „/dev/input/mice“
Option „ZAxisMapping“ „4 5“
# Mouse-speed setting for PS/2 mouse.
Option „Emulate3Buttons“
EndSection
Section „Monitor“
Identifier „Pioneer Plasma PDP436-XDE“
VendorName „Pioneer“
ModelName „PDP436-XDE“
HorizSync 25.0 – 50.0
VertRefresh 59.0 – 60.0
ModeLine „1280x720p“ 74.5 1280 1336 1472 1664 720 721 724 746 -hsync +vsync
Option „DPMS“
Option „UseEdidDpi“ „FALSE“
Option „DPI“ „100 x 100“
EndSection
Section „Device“
# simeli added
Option „UseEvents“ „True“
Identifier „NVidia GF7300“
Driver „nvidia“
#simeli old xorg
Option „TVStandard“ „HD720p“
EndSection
Section „Screen“
Identifier „Screen 1“
Device „NVidia GF7300“
Monitor „Pioneer Plasma PDP436-XDE“
DefaultDepth 24
Option „ConnectedMonitor“ „DFP“
Option „TVStandard“ „HD720p“
SubSection „Display“
Depth 24
Modes „1280x720p“
EndSubSection
EndSection