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Overscan, and tv isue
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Author:  madsholme [ Thu Jan 19, 2006 9:58 pm ]
Post subject:  Overscan, and tv isue
1: Where is the overscan control? (need to adjust it a bit on my via epia board)

2: When i see tv, something there are some green/blue/purple boxes under the picture. (the tv picture gets smaller than normal, and these colors are under it) how ever if i quick tv mode, and enter again, everything is fine, any one having any ideas?
Author:  ed3120 [ Fri Jan 27, 2006 11:02 am ]
Post subject: 
Try using nvidia-settings
Author:  cesman [ Fri Jan 27, 2006 12:30 pm ]
Post subject: 
1. One topic per thread.
2. Search the forum (epia dpms).
3. Post more hardware details.
Author:  L0o0ky [ Fri Jan 27, 2006 12:31 pm ]
Post subject: 
ed3120 wrote:
Try using nvidia-settings


Quote:
1: Where is the overscan control? (need to adjust it a bit on my via epia board)


Are you using an nvidia card--most (if not all) epia boards I am aware of have a single pci slot. I guess it is possible you are using a USB tuner.

This may depend on your version of mythtv, but have you tried Utilities/Setup->Setup->TV settings->playback--->There's an option for overscan.

thanks,
Author:  madsholme [ Tue Jan 31, 2006 10:48 pm ]
Post subject: 
the box is a epia box
so epia onboard gfx

the problem, is there is a black border all round my screen. like the resolution is height enought or something.

its realy anoying its there, isent there a way to get away?
Author:  madsholme [ Tue Jan 31, 2006 11:17 pm ]
Post subject: 
here are 2 images showing my screen, hope this helpes explaning the problem:

http://tmp.blacknet.dk/DSC00126.JPG
http://tmp.blacknet.dk/DSC00127.JPG

notice that even on the desktop there is a black border. hope there is a way to solve this, as its quite anoying seeing tv, what that big a black border around the screen... its around 2cm / 2½cm so its pretty big
Author:  cameraready [ Wed Feb 01, 2006 5:44 am ]
Post subject: 
You'll need to edit the XF86config-4 file to get the built-in gfx to overscan the image to the TV. It's off by default. Under the Device section you'll need a line like:

Code:
    Option "TVVScan" "over"


Google for epia XF86config-4 files and you should find some samples to try. After you get the output to overscan, the GUI may go off the screen. Get into the Utilities/Setup->Setup->Appearance menu and adjust the size of the MythTV gui so that it's centered on the screen. You can also adjust the overscan on the playback of the recordings and live TV under the Utilities/Setup->Setup->TV settings->playback menu. It took me a while to get my settings where I needed them since my s-video output wasn't centered on the TV screen once I activated the overscan in XF86config-4.

Edit: Corrected the references to menus for adjusting sizes & position.
Author:  dardack [ Wed Feb 01, 2006 7:02 am ]
Post subject: 
Quote:
Get into the Utilities/Setup->Setup->TV settings->playback menu and adjust the size of the MythTV gui so that it's centered on the screen.


The gui settings is under Utilities/Setup->Setup->Appearance it is the second screen under Appearance. The TV settings for overscan and placement is under the playback menu.
Author:  madsholme [ Wed Feb 01, 2006 7:21 am ]
Post subject: 
dardack wrote:
Quote:
Get into the Utilities/Setup->Setup->TV settings->playback menu and adjust the size of the MythTV gui so that it's centered on the screen.


The gui settings is under Utilities/Setup->Setup->Appearance it is the second screen under Appearance. The TV settings for overscan and placement is under the playback menu.


yes but i feel its the image that dosent fit the entire screen, leaving a black border.. like to low ressolution or something.
Author:  madsholme [ Wed Feb 01, 2006 7:22 am ]
Post subject: 
cameraready wrote:
You'll need to edit the XF86config-4 file to get the built-in gfx to overscan the image to the TV. It's off by default. Under the Device section you'll need a line like:

Code:
    Option "TVVScan" "over"


Google for epia XF86config-4 files and you should find some samples to try. After you get the output to overscan, the GUI may go off the screen. Get into the Utilities/Setup->Setup->TV settings->playback menu and adjust the size of the MythTV gui so that it's centered on the screen.


alright tnx, gonna try that and post back what i get :)
Author:  ryanpatterson [ Wed Feb 01, 2006 7:28 am ]
Post subject: 
What are you viewing your mythtv on? That looks like a computer monitor. If that is the case then it should be easy to adjust the picture size and position using the monitor's controls.
Author:  madsholme [ Wed Feb 01, 2006 9:24 am ]
Post subject: 
ryanpatterson wrote:
What are you viewing your mythtv on? That looks like a computer monitor. If that is the case then it should be easy to adjust the picture size and position using the monitor's controls.


Its a sony triniton television, so cant do that.. but yes that would had ben an easy sollusion!
Author:  dardack [ Wed Feb 01, 2006 6:06 pm ]
Post subject: 
Couple things:
This is a tool i came across to effect epia out, don't know if it would work with your model.
http://www.blackfiveservices.co.uk/EPIATVTool.shtml
Would help to get your exact mobo model, to find out the exact video card that is on it. If it is gfx, just type in nvidia-settings and go to TV than overscan, increase it till it fills the screen, or if it doesn't exactly, fills it more, and set the gui settings and playback settings in mythtv accordingly.

Second, are you going in the s-video, component, vga slot?
If it's component or vga you might want to try this to get high-def out (just helped me get 720p finally), as you were concernced about the resolution.
http://www.linuxis.us/linux/media/howto/linux-htpc/index.html

However, mostly i find it's an overscan issue. Just need to figure out how to get that working.
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Author:  madsholme [ Wed Feb 01, 2006 10:56 pm ]
Post subject: 
tnx for your help, i will try and look into that later today when i get off work! THe model is a Via Epia - M
as far i can see its a via gfx that is on it:
http://www.viatech.com/en/products/mainboards/mini_itx/epia_m/
I am using S-Video, for output, hope that answeres everything.
Author:  dardack [ Thu Feb 02, 2006 6:13 am ]
Post subject: 
Ok it's via. I don't know if nvidia-settings will work with that. you can check this page out, the chipsets he list are on the board you linked to (VT1622 which is your tv-out chip).
http://www.kingcot.eclipse.co.uk/unichr ... TvOut.html

Also, don't know if your using xorg or just x, but here is the page for the VIA chips:
http://xorg.freedesktop.org/releases/X1 ... via.4.html

Looks like your 1622 has a 720x480Noscale mode, that has cleaner tv output with minimal overscan. If you want overscan 720x480Over it looks like. But it doesn't look like it does greater resolutions however, but that shouldn't matter unless your doing HD, cause the PVR's record a max of 720x480.
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