[mythtv-users] Modelines

[Robert Dege]

@Mike - I have a Samsung TV, which has two HDMI ports, and a Game Mode.  I
currently have the TV configured for Movie mode, but will try enabling Game
mode to see if it makes a difference.  I will also toggle between the two
HDMI ports.  One of the ports doubles as a DVI in, when using a HDMI to DVI
adapter.


@ Raymond - The overscan affects all programs, including xfce (I am unable
to see the panel across the top of the screen).  I did try the screen setup
wizard, but it only made minor adjustments... not enough to resolve the
issue.


@ Kenni - Thank you for the judder free link.  I will check it out later
this evening if the above TV suggestions are ineffective.


-Robert


On Mon, Jan 27, 2014 at 11:27 AM, Batshua bat Yehonatan
<batshua at gmail.com>wrote:

> Chiming in:
>
> I've been having trouble with getting my resolution to work over HDMI for
> a while. I fixed it once with a great deal of help, but then I had to
> reinstall the OS and of course, failed to record how I'd fixed it before.
> If anyone's up for another custom Modeline puzzle, I'd love some help, too.
>
> Thanks,
> Batshua
>
>
> On Mon, Jan 27, 2014 at 11:02 AM, Kenni Lund <kenni at kelu.dk> wrote:
>
>> On 2014-01-27 Mike Perkins <mikep at randomtraveller.org.uk> wrote:
>> > On 27/01/14 13:50, Robert Dege wrote:
>> >>
>> >> Is it possible to use a custom Modeline if connecting to a TV over
>> HDMI?
>> >> I
>> >> know that this article (http://www.mythtv.org/wiki/Modeline_Database)
>> says
>> >> it's ignored if TV-OUT has been configured, but I don't know if that
>> >> applies here, since HDMI can be used to connect to monitors as well.
>> >> Plus,
>> >> I have no TV-OUT setup in the xorg.conf.
>> >>
>> >> Both the mythfrontend UI, and TV playboack are larger than the physical
>> >> screen (overscan?).  I used the screen wizard in the mythfrontend setup
>> >> menu to adjust the dimensions.  While it did help a bit, the display is
>> >> still too large.  I'm hoping a custom modeline might help.
>> >>
>> >> Mythbuntu 12.04
>> >> Mythtv 0.27
>> >> nVidia GT520 using 304.88-0ubuntu0.0.3 drivers
>> >>
>> > Since HDMI is all digital there should be nothing to configure in xorg,
>> it
>> > "just works".
>> >
>> > There is an overscan issue which can usually be resolved by digging
>> through
>> > your TV setup menus. It might be called something like "PC Game Mode".
>> >
>> > If your TV has more than one HDMI input you might try all of them. One
>> of
>> > our TVs had different options for some of the inputs (ie "Game Mode"/"PC
>> > mode"/Exact Scaling"/whatever) was only available on HDMI2.
>>
>> Exactly, and also remember to check the zoom-levels of the TV if the
>> above doesn't help.
>>
>> If trying the other HDMI-connectors on the TV and changing the TV
>> configuration doesn't help, the mode lines from the JudderFree guide
>> serves as a good starting point:
>>
>> http://www.mythtv.org/wiki/User_Manual:JudderFree#The_pain_with_TVs_reporting_incomplete_EDID
>>
>> I've copy-pasted my own xorg.conf to pastebin, which you can use for
>> inspiration or perhaps copy-paste directly. I use it for my Mythbuntu
>> 12.04 frontends with Nvidia graphics and 1920x1080 TVs, so it's likely
>> very similar to what you want to achieve:
>> http://pastebin.com/raw.php?i=VuD0T2Rh
>>
>> On 2014-01-27 15.51 "Raymond Wagner" <raymond at wagnerrp.com> wrote:
>> > The screen setup wizard will let you exactly match MythTV's UI to you
>> display.  The only reason you should need to tinker with modelines is if
>> you're using applications outside of MythTV.
>>
>> Another reason to tinker with modelines, rather then using the screen
>> setup wizard is to get 1:1 pixel mapping or to get judderfree playback
>> by utilizing refresh rates which aren't announced by the TV. I would
>> personally only use the screen setup wizard as a very last resort,
>> when all other posibilities have been eliminated. I have yet to come
>> across a LCD/LED TV which couldn't be fixed with prober mode lines in
>> combination with a correctly configured TV.
>>
>> Best regards
>> Kenni
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>
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