[Gllug] xorg.conf for widescren lcd tv

Stuart Sears stuart at sjsears.com
Wed Jul 5 14:22:27 UTC 2006

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damion.yates at gmail.com wrote:

> I would try xvidtune if you haven't already.  There are also CGIs out
> there for creating X config modelines like you used to in the old days
> before most monitors did that automatic stuff with DPMI is it?

and indeed commandline tools, such as

gtf 1366 768 60

which will generate a modeline for you for 1366x768 at 60Hz
(assuming Ubuntu ships with gtf), which will look a little like this:

# 1368x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 85.86 MHz

  Modeline "1368x768_60.00"  85.86  1368 1440 1584 1800  768 769 772 795
 -HSync +Vsync

you can then paste this into the TVs "Monitor" section of xorg.conf
I usually do this as:
Modeline "1368x768"  85.86  1368 1440 1584 1800  768 769 772 795

which seems to work fine for my TV (and the various other random
monitors I come across)

incidentally does anyone know whether the -Hsync +Vsync bit is
necessary? The lines always seem to work fine without it.

your TV manual also may contain info about refresh rates and so on. Mine
does. ( v.new Samsung )


- --
Stuart Sears RHCA RHCX
To err is human, to forgive is Not Company Policy.
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