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Thread Starter 
Greetings,

With the configuration listed below, I use ATI CCC to set the deinterlace method to Adaptive *. The problem is that Media Center will sometimes ignore the ATI deinterlace setting and default to BOB, depending on which signal it plays first after starting up. For example, if MC plays an NBC HD program first, it reverts to BOB deinterlacing every time. If it plays an SD or analog channel first, it keeps the Apaptive DI setting, even when switching back the the NBC HD program.

Has anyone else noticed this annoying behavior? Probably most people leave the DI on Automatic, but for me that isn't an option. Automatic also has the same problem defaulting to BOB depending on video format. I don't know if this bug is caused by ATI or VMC or both. I gave up on Nvidia cards awhile back. At least ATI gives me the scaling options to fill the screen on the TC-26LX70.

There's another bug (not sure if it's caused by MC or ATI or both) where the ATI CCC will not persist the Adaptive DI setting and reverts to Motion Adaptive after awhile. I've fixed this by using Vista Task Scheduler to keep reimporting the ATI DI registry settings ** from a file. A hack, but it works.

Configuration:

Computer: ASUS M2NPV-VM, AMD Athlon 64 X2
OS: Windows Vista 32bit, SP1
Video card: ASUS EAH3450 card (ATI 3450 chipset) with the current ATI driver/CCC installed.
Tuners: HDHomerun dual QAM, Hauppauge dual analog.
Signal: Comcast clear QAM digital and analog, no cable box.
TV: Panasonic TC-26LX70 with a DVI to HDMI cable from the computer.

*I can't use Automatic, Motion or Vector Adaptive, because they give horrible motion artifacts on some of the digital SD channels. BOB is also unacceptable because of the loss in vertical resolution. Adaptive gives the best overall picture on HD, SD and analog channels, although it's not perfect.

**FYI: The ATI DI registry keys look like this for Adaptive. The {ID} will be different on every computer.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Class\\{ 4D36E968-E325-11CE-BFC1-08002BE10318}\\0001\\UMD\\DXVA]
"DI_METHOD"=hex:33,00

[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Video\\{ 8EACC6BC-E169-4E11-BDAE-3D5EF8D9E83F}\\0000\\UMD\\DXVA]
"DI_METHOD"=hex:33,00

[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Video\\{ 8EACC6BC-E169-4E11-BDAE-3D5EF8D9E83F}\\0001\\UMD\\DXVA]
"DI_METHOD"=hex:33,00

[HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet002\\Control\\Class\\{ 4D36E968-E325-11CE-BFC1-08002BE10318}\\0001\\UMD\\DXVA]
"DI_METHOD"=hex:33,00

[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Clas s\\{4D36E968-E325-11CE-BFC1-08002BE10318}\\0001\\UMD\\DXVA]
"DI_METHOD"=hex:33,00

[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Vide o\\{8EACC6BC-E169-4E11-BDAE-3D5EF8D9E83F}\\0000\\UMD\\DXVA]
"DI_METHOD"=hex:33,00

[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Vide o\\{8EACC6BC-E169-4E11-BDAE-3D5EF8D9E83F}\\0001\\UMD\\DXVA]
"DI_METHOD"=hex:33,00