[mythtvnz] Video output resolution question

[Nick Rout]

On Mon, Jan 23, 2012 at 9:30 AM, Paulgir <paulgir at gmail.com> wrote:
>
>>>>
>>>
>>> Sorry about the brevity of the last reply.I'm using my desktop to email
>>> the mythbox is not on my LAN yet.
>>> OK. the message I got (had I read it correctly) told me what the problem
>>> with those commands was - typos.Here's the output:
>>>
>>> myth at myth:~$ xrandr
>>> xrandr: Failed to get size of gamma for output default
>>> Screen 0: minimum 320 x 175, current 1280 x 720, maximum 1280 x 720
>>> default connected 1280x720+0+0 0mm x 0mm
>>> ? ?1280x720 ? ? ? 50.0* ? ?51.0 ? ? 52.0
>>
>>> ?xwininfo
>>>
>>> xwininfo: Please select the window about which you
>>> ? ? ? ? ? would like information by clicking the
>>> ? ? ? ? ? mouse in that window.
>>>
>>> xwininfo: Window id: 0x1200003 "Desktop"
>>> ? Width: 1280
>>> ? Height: 720
>>
>> So your monitor/TV is running at 1280x720 or 720p
>>
>> If you want a higher resolution you need to sort out driving your
>> monitor/TV at that resolution.
>>
>> By the way, every time you post, it seems to start a new thread for me
>> (I am using gmail). Please don't.
>>
>>
> I am new to using a mailing list so I don't know why you are seeing a new
> thread each time I reply.I am replying to the Digest after editing it and
> changing
> the subject line to the subject line of the original email - perhaps this
> is
> not the correct procedure?
>
> On the original question - are you saying the TV needs to be set correctly?
> All the HDMI inputs on the TV are capable of receiving 1080i signals.There
> appears
> to be no requirement or facility for manual set up.From the TV manual:
> Max display resolution:
> 4:3 768 x 768
> 16:9 1024 x 768
> PC (from HDMI terminal)
> signal                                  horizontal frequency (kHz)                      vertical frequency (Hz)
> 640 x 480 @ 60Hz                31.47                                                       60.00
> 750 (720) / 60p             45.00                                                           60.00
> 1125 (1080) / 60p               67.50                                                       60.00
>
> On the mythtv HDMI input the tv displays 720p / 50 Hz
> On the 1st phillips HDD recorder (analogue tuner) on another HDMI input:
> 1080i / 50 Hz
> On the 2nd phillips HDD recorder        (analogue tuner) on component input:
> 576i / 50 Hz
> Tv internal tuner: 1080i /50Hz
> Obviously the 1st HDD isn't really outputing 1080i .

Why? it might be upscaling.

> The display settings in the xfce menu show a maximum resolution of 1280 x
> 720.

yes we established that from xrandr

> xorg.conf is:
> Section "Screen"
>        Identifier      "Default Screen"
>        DefaultDepth    24
> EndSection
>
> Section "Extensions"
>        Option  "Composite"     "Disable"
> EndSection
>
> Section "Device"
>        Identifier      "Default Device"
>        Driver  "nvidia"
>        Option  "TVOutFormat"   "COMPONENT"
>        Option  "TVStandard"    "HD1080p"
>        Option  "DPI"   "100x100"
>        Option  "NoLogo"        "1"
>        Option  "ConnectedMonitor"      "TV"
> EndSection
>
> I'm wondering if adding this line would help:
>
> Option    "UseEdidDpi"  "FALSE"


Try runnig without an xorg.conf at all. I am not sure why you have set
it up as component when you are using hdmi.


Actually you do realise that 720p is more lines of video than 1080i
(which is effectively 540 lines)? Are you sure you aren't better off
as you are?