[mythtv-users] Playback looks at screensize not at monitor or windowsize

[Karl Newman]

On Mon, Jun 15, 2015 at 4:11 AM, Michael T. Dean <mtdean at thirdcontact.com>
wrote:

> On 06/15/2015 01:30 AM, Karl Newman wrote:
>
>> On Sun, Jun 14, 2015 at 3:12 PM, Michael T. Dean wrote:
>>
>>  What does:
>>>
>>> xdpyinfo
>>>
>>> give?
>>>
>> http://pastebin.com/fqKk3ZJ0
>>
>
> OK, so your X is configured at 4:3 (or close enough--1.348659:1), with a
> DPI of 58x44 (non-square).
>
> Therefore, I'm guessing that your HDMI->composite converter sees a 4:3
> signal and assumes it's outputting to a 16:9 display and pillarboxes the X
> output then sends it through to your TV (presumably with WSS?).  Your X is
> configured with 1280x720 resolution.  Any specific reason why you're using
> that and not a 4:3 square-pixel resolution (and, possibly a "4:3 standard"
> resolution), like 1024x768 or 1280x960 or whatever with a square-pixel
> aspect (like 100x100)?  I'd be interested how things work with a 4:3
> logical aspect ratio (i.e. where the resolution of the output has a 4:3
> aspect).
>
> If switching resolution doesn't help, you may just have to "un-fix" X and
> lie to it to say you're using a 16:9 display.
>
> Mike
>

I solved the mystery why it was ignoring my DisplaySize in xorg.conf. I
forgot I had used xrandr in .xinitrc (/usr/bin/xrandr --output HDMI2 --mode
1280x720 --rate 60.0 --fbmm 560x420). I changed it to 560x420 for a true
4:3. Here's the available modes from the converter:
  $ xrandr
Screen 0: minimum 8 x 8, current 1280 x 720, maximum 32767 x 32767
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected 1280x720+0+0 (normal left inverted right x axis y axis)
735mm x 420mm
   1280x720      60.00*+  50.00    59.94
   1920x1080     50.00 +  60.00    59.94
   1920x1080i    60.00    50.00    59.94
   1440x576i     50.00
   1440x480i     60.00    59.94
   720x576       50.00
   720x480       60.00    59.94
   640x480       60.00    59.94
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

The 720 line resolution appears sharper than the 480 line resolutions, even
though that should be the native screen resolution.

Karl
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