[mythtv-users] Mythfrontend Mac OS X Monitor Aspect Ratio

[Dave LeBer]

On Mon, Jan 18, 2010 at 9:21 PM, Dave LeBer <dleber at codeferous.com> wrote:

>
>
> On Mon, Jan 18, 2010 at 9:13 PM, scram69 <scram69 at gmail.com> wrote:
>
>> >> Dave,
>> >> My mini (GMA950 video) detects my 16:9 flat panel as 1360x768 when
>> >> connected via DVI to HDMI.  I lose 3 pixels in the horizontal on each
>> >> side.  Do you have that resolution available?  SD content plays back
>> >> 4:3 with black bars...
>> >>
>> >> Steve
>> >
>> > Thanks Steve,
>> > I can force that resolution using SwitchResX but still no difference.
>> 4:3
>> > content is still stretched.
>> > Can I compare my configuration with yours?
>> > I'm running:
>> > Mac OS X 10.5.8
>> > Mythfrontend-release-0-22-fixes-20100117_Rev.23167 (from
>> thesniderpad.com)
>> > I've tried Snow Leopard on the Mini (since that is what is running on
>> the
>> > MBP) and I was originally running a build of Mythfrontend 0.22-fixes
>> from
>> > November.
>> > ;david
>> >
>> >
>> > _______________________________________________
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>> > mythtv-users at mythtv.org
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>> >
>> >
>>
>> I'm also on 10.5.8, but rev 22957, although I doubt that makes much
>> difference.  It sounds to me like your TV might be choosing to stretch
>> the content on its own.  My set has an "auto-stretch" setting that I
>> turn off.
>
>
> Hey Steve,
>
> I thought of that, so I tried connecting the Mac Mini to my Cinema Display,
> unfortunately I get the same behaviour. I'll probably try hooking my MBP to
> the tv later this evening, but I'm not really expecting any revelations.
>
> If I compensate for the horizontal stretch by forcing a v-stretch zoom,
> then the recorded content is watchable. As long as nothing important happens
> in the top or bottom part of the frame that is :-)
>
> Very, very, odd... and frustrating.
>

And... it looks like the LCD TV is an important part of the equation after
all. I connected my MBP to the tv and saw the same behaviour (4:3 content
stretched, no black border). I then re-tested connecting the Mini to my
cinema display, and although it doesn't show the Display Aspect Ratio in
Settings it does do the right thing when displaying recorded 4:3 content.

On my old setup (Myth 0.20) zooming didn't work on the Mini but recorded 4:3
content displayed correctly (not stretched, w/black side borders). Now after
the upgrade to 0.22 it doesn't, so I'm not sure if the TV is auto scaling
(since it wasn't before) or if it's something else.

So: cinema display via DVI works, tv via dvi-hdmi doesn't.

;david
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