Join Date: Mar 2007
Location: Albany, New Zealand
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Yes, this is a strange problem. In my case both VC1 and MPEG4 AVC give me a green screen.
Intel changed something in BIOS 0083 that set this problem off and I believe it was their fix for no HA with Blu-ray. When I first built my HTPC, the PAVP setting was available in the BIOS and if not set to 'Lite', I would get this same green screen problem. The PAVP setting has now been removed and it's supposed to default to 'Lite' on the later BIOS updates but I am not convinced.
I spent another full day with my system, flashed to 0087, latest drivers and with help from Cyberlink who sent me a nice new PDVD8 install file, I did a full un-install, registry clean out and reinstall of PowerDVD 8 Ultra with no change to the green screen.
I'm back on BIO version 0081 and Blu-ray and other H.264 video is fine but without HA. I will find the problem - one day :-)
One weird thing about this is that I get perfect DxVA MPEG4 acceleration (while using Bios 0081 or earlier) using the same PDVD8 codec in my HD TV application (DVBViewer). It somehow does all the right things with H.264 and Vista EVR to handle MPEG4 fully and CPU use is only 1.5 to 2%. If I flash to Bios 83,85 or 87, this also breaks with green screen.