[mythtv-users] HD recordings playback with black borders on top and bottom

Gabe Rubin gaberubin at gmail.com
Sat Sep 4 20:08:54 UTC 2010


On Sat, Sep 4, 2010 at 12:57 PM, Gabe Rubin <gaberubin at gmail.com> wrote:
> On Fri, Sep 3, 2010 at 3:44 PM, Gabe Rubin <gaberubin at gmail.com> wrote:
>> Hi,
>>
>> I set up a new system and all my recordings from firewire seem to
>> exhibit this same problem.  There is a black border on the top and the
>> bottom but no borders on the side.  This basically distorts the
>> recording because it resizes it to only be about 2/3 of its normal
>> height.  I checked to make sure adjust fill is off.  I am trying to
>> figure out what other setting would affect this.  I also turned off
>> use gui size for tv playback, and while that made the recording fill
>> more of the screen, it did not fill the screen.  If I change the auto
>> fill setting to full, it fills up the screen, but there is overscan,
>> and I suspect what is happening is that my image is being scaled down
>> and then scaled up, which seems like an unideal situation.
>>
>> For comparison, I play the same file in mplayer and it fills the screen.
>>
>> I feel like I am missing something obvious here.
>>
>
> I did some research and saw that you need to set up the proper aspect
> ratio in xorg.conf.
>
> I added these lines to xorg.conf:
> Section "Monitor"
>        Identifier "Television"
>        VendorName "Toshiba"
>        ModelName "46H84"
>        DisplaySize 482 274
> EndSection
>
>
> And then I added this line to the Screen section:
>        Monitor   "Television"
>
> I still get the black bars though.  Any help would be greatly appreciated.
>

It turns out that I needed to add these lines as well:

        Option    "UseEdidDpi"  "FALSE"
        Option    "DPI"  "100 x 100"


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