Strange problem with live-tv

[frankmcg]

Have been lurking on the forums for a few days now and they've been invaluable in solving many of my GB-PVR problems/challenges! However, I've finally hit a brick-wall on this one and therefore needed to post as no one else seems to have had this problem:

Setup is: Windows MCE with onboard 6150, hauppauge Nova-T.

Pretty much everything was working fine running Forceware 81.xx although picture was still a bit blurry. Upgraded to Forceware 84.24 to see if this made any difference but now LiveTV seems to be corrupted. Essentially half the picture seems to be missing across the screen vertically ie there is one vertical line of image then one line of black and so on giving it the look of those old FMV clips you used to get in computer games. Strangely everything is fine both in WinTV2000 (horrible program) and for playing normal video clips through GB-PVR. Even more strangely, if I change the Windows colours setting from 32bit to 16bit the problem also goes away, but then I think I’m losing something in terms of picture quality.

Any ideas (beyond the obvious – roll-back to previous drivers!?)

[sub]

Pretty much everything was working fine running Forceware 81.xx although picture was still a bit blurry. Upgraded to Forceware 84.24 to see if this made any difference but now LiveTV seems to be corrupted. Essentially half the picture seems to be missing across the screen vertically ie there is one vertical line of image then one line of black and so on giving it the look of those old FMV clips you used to get in computer games.

Does pressing F7 a few times make any difference? Its probably the nvidia aspect ratio bug.

[frankmcg]

Thanks for the quick reply sub but unfortunately F7 doesn't seem to help.

I've attached an example picture (taken on digital camera) to illustrate what I was trying to describe.

[sub]

Yeah, thats weird. Does it work better if you use the Overlay or VMR9 renderer?

What video decoder are you using?

[frankmcg]

Yes overlay mode fixes it completely - but makes changing AR from fill to auto to letterbox etc v slow (and auto gives a black screen?!).

I'm using Cyberlink v 5.0.0727 muxer and purevideo demuxer (but the latter isn't used for livetv I thought?)

[sub]

Did you try both VMR9 and VMR9 Custom?

[frankmcg]

Sorry yes. Both VMR9 non custom and VMR7 fill the screen with a mostly corrupted image, with only the top left quarter showing a sort of normal image.

[sub]

Sorry, I dont really have any suggestions for you.

[frankmcg]

No worries. Upgraded to the latest forceware drivers and that seemed to fix it. I guess there must have been a strange conflict or they didn't install right. Anyway, fixed now!

One other quick question - I've changed my desktop resolution to 720x576 (widescreen PAL TV) but now because of the overscan part of the menus are being cut off within GB-PVR. Any easy fix for this?

[sub]

One other quick question - I've changed my desktop resolution to 720x576 (widescreen PAL TV) but now because of the overscan part of the menus are being cut off within GB-PVR. Any easy fix for this?

The best approach is to change your video card settings to avoid this. If thats not possible, then you can adjust the <OverScanBorder> settings in config.xml to reduce the area of the screen that GB-PVR will try to use.