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Old 04-19-06, 05:48 AM   #1
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Join Date: Apr 2006
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Unhappy Quadro 4 550 XGL maximum pixel clock over DVI

I want to use my Quadro 4 550 xgl card to drive a Dell 2405fpw. I was aware that these old cards perhaps have a limit of 140MHz on DVI output.

But when I tried it, I get a limit of 112MHz pixel clock!

Is it true, that this card a that limited, or is this false detected?

(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on Quadro4 550 XGL at PCI:1:0:0:
(--) NVIDIA(0):     Dell 2405FPW (DFP-0)
(--) NVIDIA(0): Dell 2405FPW (DFP-0): 112 MHz maximum pixel clock
(--) NVIDIA(0): Dell 2405FPW (DFP-0): Internal Single Link TMDS
(II) NVIDIA(0): Assigned Display Device: DFP-0
(WW) NVIDIA(0): No valid modes for "1920i"; removing.
(WW) NVIDIA(0): No valid modes for "1920x1200"; removing.
(WW) NVIDIA(0): No valid modes for "1680x1024"; removing.
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0):     "1280x1024"
(II) NVIDIA(0):     "1024x768"
(II) NVIDIA(0):     "800x600"
(II) NVIDIA(0):     "640x480"
(II) NVIDIA(0): Virtual screen size determined to be 1280 x 1024
And even if it tells me, that interlaced modes are supported, it can't use these (I tried the one, that are already reported as working).

Thanks Sven

PS: Everything is working if I use analog connection to the monitor.
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