Hi William,
I should have mentioned that I'm using just a TV at the moment, a
Philips 100HZ 36" widescreen. It's only 2 years old otherwise I'd
consider trading up to an LCD with DVI input! Part of my XF86Config file
is below - Some of which I have left untouched (like 'metamodes')
because I don't understand it! DisplaySize did a lot to get my picture
size right, including making it anamorphic all the time so once set, I
don't need to change the TV settings again until it's turned on again.
Section "Monitor"
Identifier "monitor1"
VendorName "Philips"
ModelName "WideTV"
HorizSync 30-50
VertRefresh 50-61
DisplaySize 320 180
EndSection
Section "Device"
Identifier "device1"
VendorName "nVidia"
BoardName "NVIDIA GeForce FX (generic)"
Driver "nvidia"
Option "ConnectedMonitor" "TV"
Option "Metamodes" "1024x768, 1024x768; 800x600, 800x600; 640x480,
640x480"
Option "TVOutFormat" "SVIDEO"
Option "TVStandard" "PAL-I"
EndSection
Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24
Subsection "Display"
Depth 24
Virtual 800 600
EndSubsection
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of William
Sent: 10 March 2005 14:49
To: 'Discussion about mythtv'
Subject: RE: [mythtv-users] Widescreen switching
> I've almost got my Mythtv picture perfect, with a little help
> from xvattr and nvidia-settings. The last step is to get the
> FX5200 card to output a WSS signal to make the TV go into
> widescreen mode. Anyone know how?
>
For me the trick was to use a modeline that was 16:9 by design.
Unfortunely
mythtv does not seem to recognize this so I also had to add a explicit
definition of the screen size and now everything works as expected. I
just
wish there was a way to automatically detect the formal of of the 4:3
versus
letterbox broadcasts and to switch mode when letterbox is detected. This
problem will iron itself out as the stations all switch to the new
standards.
I have attached parts of my xorg.conf file for clarity. If the modeline
numbers look confusing it is because I am using a
resolution-in-a-resolution
which scales the picture to perfectly fit my screen while maintaining
the
timings required by my monitor. The biggest pain was geting the overall
timing correct so that I had a stable picture that my monitor would
accept.
After that it was simply a matter of playing with the visible portion of
the
picture and the sync pulse timings to get everything where it should be.
I
overscan by about 6 pixels so that the edges of the picture are not
visible.
I do not use any overscan features of myth. I find I get a MUCH better
picture doing it this way. With kernel deint turned on I get a better
picture than my monitor produces with its own scaling features.
-------------------------
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "RGB-hv hi-def monitor/tv"
HorizSync 31.0 - 77.0
VertRefresh 55.0 - 120.0
#Option "dpms"
Option "NoLogo" "1"
Option "NoDDC" "1"
#Option "RenderAccel" "1"
ModeLine "540" 37.26 824 944 1048 1104 468 514 528 563 +hsync
+vsync
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "540"
Virtual 824 468
EndSubSection
EndSection
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