[mythtv-users] Mythfrontend idle cpu consumption help

Paul Gardiner lists at glidos.net
Wed Nov 11 15:45:47 UTC 2009

Paul Gardiner wrote:
> Johnny wrote:
>>> Just food for thought, but if you are only doing SD to an SD screen
>>> (~640-720x480), why bother with scaling up to 800x600 only to have the
>>> resulting output shown at (~640-720x480)?  Why not just use 640x480
>>> natively all the way through from source to destination and avoid the
>>> unnecessary scaling up and down.
>> Because too many of the GUI elements outside of myth are completely
>> unusable at 640x480. I know I don't go out there much, but it is worth
>> it for when I do. Also the quality difference is not perceptible, it
>> is SD after all. Third there is significant overscan so if I set it to
>> 640x480 I actually get much less then that after I have adjusted the
>> screen.
> I'm surprised the quality difference is not perceptible... unless
> you are using bob or linear for deinterlacing that is, or if your
> TV is an old CRT and not well focussed.

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.


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