[mythtv-users] Migrating from VGA to HDMI
Matt Doran
matt.doran at papercut.biz
Tue Apr 24 10:52:44 UTC 2007
Phill Edwards wrote:
>> You do get overscan using the 1280x720_60 built-in X modeline ... but
>> the output is pretty good. But it's hard to tell the difference between
>> VGA (at the native res) and HDMI at less than native. I've also
>> experimented with the 50Hz modeline, which should be better to display a
>> 50HZ signal (I assume you're in Aus?). I honestly had trouble noticing
>> the difference.
>>
>> I also found a mode-line that has no overscan (it's a weird resolution
>> though). I don't have access to it from here, but can post it if you're
>> interested.
>>
>
> Yes please - definitely intrerested. And yes, I'n in Australia.
>
>
>
This one gives you no overscan, through HDMI:
Modeline "1216x684" 74.16 1216 1356 1396 1648 684 707 712 750 +hsync
+vsync
The standard X 720p modelines 1280x720_50 and 1280x720_60 can be used
over HDMI.
This gives you native resolution, but only works over VGA.
Modeline "1368x768" 85.478 1368 1424 1536 1792 768 771 777 795
+hsync +vsync
You'll need to use these in the "Device" section to get some of these
modes to work:
Option "ExactModeTimingsDVI" "1"
Option "ModeValidation" "AllowNon60HzDFPModes"
Good luck with it,
Matt
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