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DreamColor LP2480zx - problems with running 10-bit per color channel mode (1066 Views)
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rafal Student
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rafal
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Registered: ‎06-12-2009
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DreamColor LP2480zx - problems with running 10-bit per color channel mode

‎06-12-2009 11:16 AM

I am trying to get HP Dreamcolor LP2480zx display working in the 10-bit per color channel mode with NVidia Quadro FX 580 (from PNY).

 

The two posts suggest that it should be possible:

http://h30434.www3.hp.com/psg/board/message?board.id=Display&thread.id=593&view=by_date_ascending&page=1
(see the answer from GregStaten) 

 

http://forums.nvidia.com/index.php?showtopic=87481&st=0&gopid=551799&#entry551799

 

But I have no success so far.

 

NVidia's NVSG Viewer has a button to switch to 10-bit mode. After clicking "30 bit" button, the NVSG Viewer says (in the logs):

"Pixel format error: 10-bit per color channel in combination with stereo not available",

although stereo mode is off. Our OpenGL application falls back to the 8-8-8-8 mode when trying to open a 10-10-10-2 pixel buffer. I can see clear banding (contouring) when displaying a smooth gray-scale gradient.

Does NVidia Quadro FX 580 actually support 10-bit per color channel output? Has anybody tested it with the DramColor display?
What else can we try?

Thanks,

Rafal

Cable: display port
OS: Windows XP
NVidia drivers: 182.65
Display: HP LP2480zx
  Firmware: TR: 135 SL:063BL:167

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