[mythtv-users] Playback Scaling Problem with upgrade

[Jay Foster]

On 10/29/2014 2:12 PM, Jonatan Lindblad wrote:
> On 2014-10-29 02:59, Jay Foster wrote:
>> I checked my current mythtv system (0.21-fixes) and it does not even
>> have the Zoom setting in the setup UI, so this would explain why when I
>> upgrade that DB to 0.27, the Zoom field is blank.  Apparently, the
>> mythbuntu folks are aware of this because my fresh install of mythbuntu
>> 14.04.1 had the default Zoom setting set to V.Fill, which worked
>> correctly for me.
>>
>> My recordings are HDHR ATSC broadcasts (1280x720p, 1920x1080i). Nothing
>> special there.  They scale correctly on my 0.21 system, but require the
>> V.Fill zoom option on 0.27.  I'm OK with that, if that is what is
>> needed.  I suspect that somewhere between 0.21 and 0.27, the code
>> changed to assume that the display pixels are square, which is not the
>> case for me.  It appears that without the V.Fill setting in 0.27, the
>> playback is converting 1280x720p programs to 1280x720 pixels and
>> 1920x1080i programs to 1280x720 pixels for display.  However, my display
>> is 1280x768, which results in a distorted (vertically squished) picture
>> with black bands on the top and bottom.
>>
>> xrandr output:
>> Screen 0: minimum 8 x 8, current 1280 x 768, maximum 16384 x 16384
>> VGA-0 connected primary 1280x768+0+0 (normal left inverted right x axis
>> y axis) 0mm x 0mm
>>     1024x768       60.0 +   75.0     70.1
>>     1280x768       59.9*
>>     800x600        75.0     72.2     60.3     56.2
>>     640x480        75.0     72.8     59.9
>> DVI-D-0 disconnected (normal left inverted right x axis y axis)
>> HDMI-0 disconnected (normal left inverted right x axis y axis)
>
> Noticed the "0mm x 0mm"?  It looks like your physical screen size 
> isn't detected/configured.
>
> https://www.mythtv.org/wiki/Display_Size
>
> Cheers,
> Jonatan
>
>
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Been there, done that, no difference other than making the text in my 
terminal shell too small to read.  My display is 1106mm x 622mm.
DisplaySize     1106 622

Jay