On Thursday 12 January 2006 16:05, Steve Adeff wrote: > On Thursday 12 January 2006 18:15, Michael T. Dean wrote: > > Paul Leppert wrote: > > > I recently purchased a new TV with 1080p capabilities (HP md5880n) and > > > was looking for advice on how to set up mythtv to get the best image / > > > performance at the HDTV resolutions. > > > > > > Based on the capabilities of the TV, I can feed it a 480p, 720p, and > > > 1080p signal (and I'm assuming a 1080i signal as well, but not sure if > > > that is relevant). I have a DVI to HDMI cable to feed it and have > > > confirmed I can send these three resolutions from my nVidia FX 6800 > > > (mythtv box). > > > > > > Based on my understanding of mythtv, I have the option of setting it > > > up to use different resolutions based on what is being played back and > > > another resolution for the GUI. > > > > > > I would assume this would work out as: > > > 1080i source -> 1080p output to TV > > > 720p source -> 720p output > > > 480i source -> 480p output > > > GUI -> 1080p output (probably doesn't matter much which resolution > > > to use for this) > > > > > > Is this how people use this capability? > > > > > > Is it better to have mythtv feed different resolutions to the TV based > > > on the source being played (and have the TV scale), or is it better to > > > have mythtv feed the highest resolution always (with mythtv scaling)? > > > > > > I have heard via this list that having mythtv feed a different > > > resolution (than the source content) will impact the performance since > > > the myth box will need to scale the image if it isn't the same > > > resolution. I have an Athlon XP 3200+ and it has problems keeping up > > > with HDTV (if I don't use XvMC, which I would prefer not to use), so > > > CPU performance is probably my top concern. Does the CPU perform the > > > scaling or does the video card? Anyone have any ideas on quantifying > > > the impact? > > > > On any video card that has hardware scaling capabilities, scaling takes > > almost no CPU resources. Your card does hardware scaling when using Xv, > > so you shouldn't notice any difference whether scaling on the Myth box > > or the TV. > > > > Mike > > recommended to play everything out of the computer to the highest > resolution your TV handles natively. The MythTV Menu can be whatever you > find looks best to your eyes, text, etc. will behave differently at > different sizes.
+1 for letting the TV run at its native resolution. (I just run everything at 1080p on my Westinghouse set). -- Jarod Wilson [EMAIL PROTECTED]
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