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Old 04-11-11, 02:58 PM   #6
danix
NVIDIA Corporation
 
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Join Date: Feb 2010
Location: Santa Clara, CA
Posts: 237
Default Re: 2560x1600 from HDMI. Redirect DFP-0 ?

Apparently I replied to the double post. If you really want to try to make this work, you can try creating a modeline that underclocks the refresh rate so that you can drive the resolution you want and stay under the 165 MHz pixel clock limit. Make sure to set option "ExactModeTimingsDVI" so that the driver won't try to match your mode against existing modes from the EDID. There's no guarantee that your display would actually be able to display this mode, and obviously your refresh rate would suffer, but it might be worth a shot.

The following modelines for 2560x1600 @ 30 Hz both come in at under 165 MHz:


bash-3.2$ gtf 2560 1600 30

# 2560x1600 @ 30.00 Hz (GTF) hsync: 48.84 kHz; pclk: 164.10 MHz
Modeline "2560x1600_30.00" 164.10 2560 2688 2960 3360 1600 1601 1604 1628 -HSync +Vsync

bash-3.2$ cvt 2560 1600 30
# 2560x1600 29.99 Hz (CVT) hsync: 48.88 kHz; pclk: 164.25 MHz
Modeline "2560x1600_30.00" 164.25 2560 2696 2960 3360 1600 1603 1609 1630 -hsync +vsync
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