[mythtv-users] 16:9 video playback cutting off 10% on right side

[mythtv at varga.co.uk]

>>
>> > System specs:
>> >
>> > Myth 0.18
>> > Nvidia FX5200, 7667 drivers
>> > 2x HD-3000 capture card
>> > 800x600 through TV-out over s-video.
>> >
>> > I had my Myth system setup and everything was working great...until
>> the fan on the video card went bad and the system started locking
>> up.
>> >
>> > I was using a Nvidia 6200 AGP video card but I replaced it with a
>> fanless FX5200 card. After I replaced the video card and rebooted,
>> the Myth interface looked exactly the same as before, filling the
>> screen with very little overscan. I then attempted to playback some
>> recorded TV and discovered that on 16:9 material, at least 10-15% of
>> the picture is missing on the right side. 4:3 material seems to work
>> fine.
>> >
>> > This did not happen with the 6200 card. I didn't change any settings
>> in .nvidia-settings-rc or in XF86Config-4, so I don't know what's
>> causing this. Does anybody have any ideas?
>>
>> Different video cards sit the screen in slightly different places,
>> it's just a fact of life. You'll need to tinker with the modeline in
>> the XF86Config-4 file, just take it slowly.

> I don't think that's the problem. The X desktop and the Myth UI both
> look correct. Neither of them is getting 10-15% of the picture chopped
> off on the right side. I only see the problem during 16:9 video
> playback. I have Myth configured to use the same video mode for the GUI
> and for playback, so it isn't that either.

Are you definitely running your desktop in the same 16:9 mode?
Do you have any other modelines defined?