Difference between revisions of "XorgConfMonitorSectionForTV"
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should be adapted to allow refresh rates that can be understand by the TV encoder chip | should be adapted to allow refresh rates that can be understand by the TV encoder chip | ||
of your videocard. Normally this will be 60.0 Hz, also in Europe for the PAL TV-standard! | of your videocard. Normally this will be 60.0 Hz, also in Europe for the PAL TV-standard! | ||
| − | I repeat, you need the value for the TV-encoder on the videocard. | + | I repeat, you need the value for the TV-encoder on the videocard. (in fact, the TV-encoder |
| + | chip has internal instructions how to handle the rates for your TV. This is what | ||
| + | TV-standards like PAL and NTSC are designed for ;-) | ||
As sample I provide you with the 'Monitor' section of my xorg.conf: | As sample I provide you with the 'Monitor' section of my xorg.conf: | ||
Revision as of 18:05, 20 November 2006
To use a TV screen as monitor, the 'Monitor' section in xorg.conf (usually in /etc/X11) should be adapted to allow refresh rates that can be understand by the TV encoder chip of your videocard. Normally this will be 60.0 Hz, also in Europe for the PAL TV-standard! I repeat, you need the value for the TV-encoder on the videocard. (in fact, the TV-encoder chip has internal instructions how to handle the rates for your TV. This is what TV-standards like PAL and NTSC are designed for ;-)
As sample I provide you with the 'Monitor' section of my xorg.conf:
Section "Monitor"
Identifier "Generic Monitor"
HorizSync 30 - 50
VertRefresh 60.0
DisplaySize 200 150
EndSection
The DisplaySize is an optional parameter. Its value should be conform aspect ratio for the resolution you are going to use, normally using a 4x3 aspect ratio. The value given for this option is used to compute the number of Dots Per Inch (DPI) for your display. The size of the fonts in use (not only MythTV but all X applications!) will be adapted to the DPI value. In a 'normal' configuration (where people use a computer monitor) the values are read from the monitor itself, but S-Video and Composite cables do not provide this information, so you have to provide them yourself.
Giving the _real_ values for your display will result in unreadable small fonts. It is advised to play with the value, as the result may vary from unreadable fonts to fonts that are big enough to support your grandmother without wearing glasses ;-)
My favourite values so far:
- On a 53cm 4x3 aspect ratio PAL TV: DisplaySize 180 135
- On a 91cm 16x9 aspect ratio PAL TV: DisplaySize 200 150
