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Identical Monitors, resolution issues.


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#1 digitalmatter

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Posted 16 November 2016 - 04:22 PM

Ive got a workstation here that I just bought 2 identical monitors for.

 

Monitor 1 would only display 1300x768

Monitor 2 displays 1600x900 (which I want on both)

 

I am forced to make Monitor 2 my main display for the 1600x900 resolution while Monitor 1 is stuck at 1300x768.

 

The monitor that reads 1600x900 shows up as the Acer G205H properly when looking at my displays while the monitor that reads 1300x768 reads as a Generic Non-PnP Monitor.

 

 

Graphics card is a Quadro FX 570 ( not a gaming rig, more for work ). Drivers are up to date all around.

 

Both cards have a DVI to VGA Adapter on the card and VGA cables going to the monitors. 

 

PC Specs

2.8ghz Xeon

12gb of RAM

Win 7 Pro

 

Ive been working in IT for 10+ years now and I am embarrassed I cannot figure this one out.  Any help here?


Edited by digitalmatter, 16 November 2016 - 04:23 PM.


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#2 Platypus

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Posted 16 November 2016 - 04:32 PM

The first thing I would try is to see if it shows the same behavior using DVI.

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#3 digitalmatter

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Posted 16 November 2016 - 04:33 PM

I do not have any DVI cables around, I would have to go get some to test this theory.



#4 Platypus

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Posted 16 November 2016 - 04:37 PM

Borrowing some could save a lot of head scratching, or at least give evidence if one monitor is faulty (e.g. has corrupted EDID table).

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#5 digitalmatter

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Posted 16 November 2016 - 04:43 PM

Well when I swap the monitor's VGA cables they read the same. So I do not think it is the monitor doing this. My guess is either the video card, the fact that I am using DVI --> VGA Adapters, or something else I cannot think of. I figured I would throw it out here before I went and bought a new business minded video card and new cables just to test something out. 



#6 digitalmatter

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Posted 16 November 2016 - 05:35 PM

[RESOLVED]

 

I completely forgot that that the monitor that would only go to 1300x768 was being routed through a VGA switch so I can jump into my CCTV system. That cable was also on an older style VGA cable. I took the VGA switch out of the equation and switched to a new style VGA cable. Rebooted and VOILA, both monitors detected and resolutions worked perfect.

 

Not sure if it was the old vga cable, the switch or both.

 

Thanks for the input Platypus!



#7 Platypus

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Posted 16 November 2016 - 05:48 PM

Ah, good to hear! Thanks for letting us know how it was resolved.

Edited by Platypus, 16 November 2016 - 05:49 PM.

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