Hi? I have recently purchased IBM T221 Monitor which supports resolution of 3840 x 2400.
However, I had trouble running this resolution with my Matrox Parhelia.
IBM T221 LCD supports 3840 x 2400 using 1, 2, or 4 DVI's.
For 1 DVI, it supports 3840 x 2400 at 11Hz Refresh, for 2 DVI's it supports at 25Hz, and with 4 DVI's at 41Hz.
So far I have tested this monitor with ATI Fire GL4 128MB AGP, ATI Radeon 9700 Pro, and Matrox Parhelia 128MB AGP card.
With Fire GL4, using 2 DVI's, it did support the resolution at 25Hz, which didn't bother me at all, but its poor video overlay performance made me give up.
And with Radeon 9700 Pro, it supports 3840 x 2400 using only 1 DVI, but its 11Hz refresh rate is unuasable.
So I tested with Matrox Parhelia Graphic Card, but 3840 x 2400 was not achievable.
In order to support 3840 x 2400 mode, each DVI has to support 1920 x 2400 resolution, which by the way is not VESA standard.
Is there any way I can make my Parhelia to support 3840 x 2400 using 2 DVI's? Each with 1920 x 2400?
The driver doesn't show its option, but I don't see any reason why it couldn't be supported.
Maybe all I need is some driver modification trick to allow parhelia to support 3840 x 2400.
Thanks in advance for your help.
Sang
However, I had trouble running this resolution with my Matrox Parhelia.
IBM T221 LCD supports 3840 x 2400 using 1, 2, or 4 DVI's.
For 1 DVI, it supports 3840 x 2400 at 11Hz Refresh, for 2 DVI's it supports at 25Hz, and with 4 DVI's at 41Hz.
So far I have tested this monitor with ATI Fire GL4 128MB AGP, ATI Radeon 9700 Pro, and Matrox Parhelia 128MB AGP card.
With Fire GL4, using 2 DVI's, it did support the resolution at 25Hz, which didn't bother me at all, but its poor video overlay performance made me give up.
And with Radeon 9700 Pro, it supports 3840 x 2400 using only 1 DVI, but its 11Hz refresh rate is unuasable.
So I tested with Matrox Parhelia Graphic Card, but 3840 x 2400 was not achievable.
In order to support 3840 x 2400 mode, each DVI has to support 1920 x 2400 resolution, which by the way is not VESA standard.
Is there any way I can make my Parhelia to support 3840 x 2400 using 2 DVI's? Each with 1920 x 2400?
The driver doesn't show its option, but I don't see any reason why it couldn't be supported.
Maybe all I need is some driver modification trick to allow parhelia to support 3840 x 2400.
Thanks in advance for your help.
Sang
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