[mythtv-users] Mythfrontend idle cpu consumption help [OT: SD tvs and scaling]

Nick Rout nick.rout at gmail.com
Thu Jan 21 01:44:50 UTC 2010


On Thu, Jan 21, 2010 at 2:58 AM, Ian Clark <mrrooster at gmail.com> wrote:
>
>
> 2009/11/11 Johnny <jarpublic at gmail.com>
>>
>> > Or - come to think of it - if you still had some scaling even when
>> > using 640x480. That can happen if you scale the GUI and forget to
>> > uncheck the box for scaling the video to the same as the GUI.
>>
>> I purposely scale the video as well. The overscan is pretty bad. It
>> will cut off the logos etc that are supposed to be in the safe area. I
>> looked at it both ways and I can't see a difference in terms of
>> sharpness. Maybe I could with higher quality content, but I am just
>> talking about TV recordings here. They aren't that sharp to start
>> with.
>
> FWIW I also use an SD CRT TV (old, but good quality Sony 29"), and I used to
> have myth setup for the correct resolution (I forget exactly what I used),
> but when I rebuilt it last time I never got round to changing the default
> from 1024x768, and I must say I don't really notice the difference either.
>
> It's also quite handy for the odd time I need to connect a monitor to it,
> 1024x768 is nicely supported.
>
> I did used to use VDPAU too, but that nolonger works for me (I think it's
> related to an xorg.conf setting TBH, newer nVidia drivers just cause a
> kernel crash.), however as VDPAU didn't work too well with UK Channel 4,
> which has a habit of changing the resolution of the broadcase signal (eg,
> simpsons airs at 4:3, the adverts inbetween are 16:9), I'm now using opengl
> and interlacing (I forget which, but possibly Bob2x) and the picture I have
> now is the best it's ever been from myth for me. (even compared to VDPAU,
> which whilst problamatic, was very very nice.)
>
> This is over SVid too, geforce 7900 GTX (IIRC)

In which case you weren't using vdpau, which is only supported on 8xxx
and higher cards.


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