[mythtv-users] How to fix overscan through Onkyo Receiver

Greg Oliver oliver.greg at gmail.com
Wed Nov 24 14:21:03 UTC 2010


On Wed, Nov 24, 2010 at 8:15 AM, dargllun <dargllun at googlemail.com> wrote:
> On 24.11.2010 15:13, dargllun wrote:
>>
>> On 24.11.2010 14:58, James Berwick wrote:
>>>
>>> On 11/24/2010 5:37 AM, Andre wrote:
>>>>
>>>> Was worth a try, that mode solved some similar (but not the same)
>>>> problems for me.
>>>>
>>>> Maybe there is some subtle difference when passed through the receiver
>>>> that triggers some auto setting in the TV? There has been some
>>>> discussion in other threads about TVs that automatically choose
>>>> overscan/1:1 or rgb-full/rgb-limited depending on the input signal,
>>>> maybe this related to your problem?
>>>>
>>>> There is something in the Samsung's where you must name the input PC
>>>> (I think) to get 1:1 (no overscan) and RGB-full. Panasonic Viera's
>>>> only allow 1:1 when set to game mode.
>>>>
>>>> Andre
>>>> _______________________________________________
>>>> mythtv-users mailing list
>>>> mythtv-users at mythtv.org
>>>> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>>>
>>> Hmm, that's a possibility. I currently have my input named MythTV on the
>>> receiver, I could try naming it back to PC when I get home.
>>>
>>> That being the case, how hard would it be to just tell MythTV to center
>>> itself inside the display area with a smaller working area? I tried the
>>> 'Screen Setup Wizard', which resized the screen but left it hugging the
>>> top left corner so things were overscanned with a ton of blank space on
>>> the bottom and right.
>>
>> The OSS radeon driver's xrandr implementation supports the overscan
>> property for this. You could check if the nvidia driver offers something
>> similar.

nvidia-settings has an overscan slider..  Turn on mythtv, export your
display and run it on another machine while you watch the effects on
the TV.  You could also try a custom modeline (although if the onkyo
is in fact causing the overscan - it will just overscan that modeline
as well)

> Sorry, I meant the _underscan_ property, of course.
>


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