[mythtv-users] can Nvidia 7800GS play HD?

Michael T. Dean mtdean at thirdcontact.com
Thu Feb 21 15:04:53 UTC 2013


On 02/21/2013 10:00 AM, Michael T. Dean wrote:
> On 02/21/2013 09:40 AM, Brent S. Elmer Ph.D. wrote:
>> I have an old computer I am trying to make into a mythfrontend.  The
>> video card is a BFG overclocked Nvidia 7800GS in a 4 X AGP slot.  I am
>> running Debian testing/wheezy and have the latest nvidia proprietary 
>> drivers
>> installed(304.64).  The card is doing direct rendering.
>> The card is too old for vdpau.  Does anyone have this card set up to 
>> view HD?
>> SD displays fine.  HD stutters a little.
>> The card is fine for gnome-shell and everything else.  I was
>> just wondering if there are some tweaks I can make in the xconfig or
>> mythsetup to make it work a little better for HD.
>
> Make sure you're using a proper Playback Profile--I recommend setting 
> it up to use the Slim Playback Profile group.  If you get that 
> working, you can create your own custom profile and play around with 
> the deinterlacers to see if you can do better deinterlacing.
>
> Note that the card itself is irrelevant when using Slim (specifically, 
> when using Xv rendering)--it's the CPU and RAM that needs the resources.
>
> If you get things working with Xv rendering, you can attempt to use 
> something like the OpenGL Slim profile to try to get better rendering 
> (especially of the OSD), but it may be too much for that card/AGP (I 
> never had much luck with OpenGL renderer on my 7800 GTX at > 1x, and I 
> refuse to live without timestretch).

Oh, and you may need to do things like turn off Composite and/or switch 
to a Window Manager that just does what a WM should without all the fire 
and collapsing windows and ...

Mike


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