Problem with HD TV only showing part 1/8th of picture (1 Viewer)


Portal Member
September 25, 2008
Home Country
United Kingdom United Kingdom
TV-Server Version:
MediaPortal Version:
MediaPortal Skin: Blue3Wide
Windows Version: Vista Ultimate (64) SP1
CPU Type: AMD Athlon X2 6000
HDD: 1 x 140 Mb for OS, 600 Mb Raid5 for data
Memory: 2Gb
Motherboard: MSI K9N SLI
Video Card: ATI Radeon X1600
Video Card Driver: ATI 8.561.0.0
Sound Card: Realtek High Definition Audio Device (on montherboard)
Sound Card AC3:
Sound Card Driver: Microsoft 6.0.6000.16386
1. TV Card: hauppauge HVR4000
1. TV Card Type: Triband
1. TV Card Driver: 88x_2_122_26109_WHQL
MPEG2 Video Codec: MPV Decode Filter
MPEG2 Audio Codec: MPA Decode Filter
h.264 Video Codec: Core AVC 1.8.5, DivX 7.1, Matroska Pack Full v1.1.2
Satelite/CableTV Provider: Sky (EuroBird)
HTPC Case: Tower
Cooling: Air
Power Supply: Thermaltake
Remote: Microsoft Remote
TV: Philips 1080p
TV - HTPC Connection: HMDI

Fiirstly, thanks to all the developers - fantastic product.

Strange problem with HD TV, worked fine in Meida Portal RC2 and RC3, broke in 1.0. Now it shows HD but only the top 1/8th of the top RH corner of the picture is shown full screen. I have tried several h.264 codecs (above), all with the same effect.

Looks very much like this old thread.
CoreCodec Community Forum • View topic - Problem with MediaPortal

Help advice appreciated


Portal Member
January 17, 2009
Home Country
United Kingdom United Kingdom
Hi Irelandp

I have just encountered the same issue having just set up MP on a second PC where HA was not required. I downloaded the coreavc trial and all I could watch was the BBC HD logo.

In coreavc configuration, try unticking the YV12 option in output formats. I can now see the full picture. No idea what it all means as I found out through trial and error.

Hope this helps.




Portal Member
September 25, 2008
Home Country
United Kingdom United Kingdom
Found solution


Thanks for your help. Your suggested "spell" did not work, however, it encouraged me to try clicking around on the CoreAvc options. I have found that if you set the Deinterlacing to "Single Frame" or "Bob", all you can see is the BBC HD logo expanded to full screen (very good description). (i.e. about 1/8 th of the actual picture)

However, if you set Deinterlacing to None, you get full screen picture (with the BBC HD logo in the top lh corner as it is supposed to be) but jaggies on fast moving pictures, set it to Hardware, you get full screen with no jaggies. Voila.

I am sure setting up a media centre is a bit like witch craft. All we do is share "spells" that sometimes work if you incant them at the right phase of the moon!. BTW - don't forget you need fresh bat's wing when setting your deinterlacing to hardware. ;)

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