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Old 04-09-11, 12:17 PM   #1
someone2000
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Default 2560x1600 from HDMI. Redirect DFP-0 ?

I have an HP HDX9494 laptop with a Geforce 8800 GTS in it.

I want to drive a 2560x1600 display via the HDMI port.

It appears that the internal display is driven by DFP-0, which is a dual link interface, which has a maximum pixel rate of 330 MHz.

The HDMI port is driven by DFP-1, which is a single link interface. It has a maximum pixel rate of 165 MHz, which is insufficient to drive a 2560x1600 display.

Is there any way to connect the output of DFP-0 to the HDMI port or otherwise drive a 2560x1600 monitor ?

Thanks

BTW

"HDMI 1.3 was released June 22, 2006 and increased the single-link bandwidth to 340 MHz (10.2 Gbit/s).[42][2][103] It optionally supports Deep Color, with 30-bit, 36-bit and 48-bit xvYCC, sRGB, or YCbCr, compared to 24-bit sRGB or YCbCr in previous HDMI versions."

"Maximum resolution over single link at 24-bit/px[b] <snip> 25601600p75"

http://en.wikipedia.org/wiki/HDMI
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Old 04-12-11, 11:12 AM   #2
Runningman
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Default Re: 2560x1600 from HDMI. Redirect DFP-0 ?

Quote:
Originally Posted by someone2000 View Post
I have an HP HDX9494 laptop with a Geforce 8800 GTS in it.

I want to drive a 2560x1600 display via the HDMI port.

It appears that the internal display is driven by DFP-0, which is a dual link interface, which has a maximum pixel rate of 330 MHz.

The HDMI port is driven by DFP-1, which is a single link interface. It has a maximum pixel rate of 165 MHz, which is insufficient to drive a 2560x1600 display.

Is there any way to connect the output of DFP-0 to the HDMI port or otherwise drive a 2560x1600 monitor ?

Thanks

BTW

"HDMI 1.3 was released June 22, 2006 and increased the single-link bandwidth to 340 MHz (10.2 Gbit/s).[42][2][103] It optionally supports Deep Color, with 30-bit, 36-bit and 48-bit xvYCC, sRGB, or YCbCr, compared to 24-bit sRGB or YCbCr in previous HDMI versions."

"Maximum resolution over single link at 24-bit/px[b] <snip> 25601600p75"

http://en.wikipedia.org/wiki/HDMI
Are you trying to drive both displays at the same time or one or the other? I have a feeling there is a driver limitation where you can only choose between the two....
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