Display Port not functioning to LCD on multiple units

DVI, HDMI (or lack of), VGA (or lack of), supported displays
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candersonmailbox
Posts: 6
Joined: Thu Jan 10, 2013 5:28 pm

Display Port not functioning to LCD on multiple units

Post by candersonmailbox »

Hello,

We have a Fit-PC3 for a large customer project which requires us to use both the display port and hdmi interface. We have an LCD panel, which has been verified to be able to display from a different display port device.

In short on multiple Fit-PC3 pro devices we cannot obtain video output from the Displayport output to our LCD.

We have modified the BIOS setting for display port to HDMI passive, this does not work.

Is there any incompatibility possibilities, what could it be?

Help Please!

irads

Re: Display Port not functioning to LCD on multiple units

Post by irads »

Before we investigate further please cross check:
Fit-pc3 DP with another DP display
Your LCD with another DP graphics card
Please inform us of the findings.

Thanks,

candersonmailbox
Posts: 6
Joined: Thu Jan 10, 2013 5:28 pm

Re: Display Port not functioning to LCD on multiple units

Post by candersonmailbox »

We have verified the following functionality:

Another DP device can display to the LCD
DP from Fit-pc3 works through passive HDMI adapter
DP from Fit-pc3 works through analog VGA adapter


Thank You,

irads

Re: Display Port not functioning to LCD on multiple units

Post by irads »

Thanks for the info. Another question:
Is your LCD native DP or are you using some kind of a converter DP-->converter-->LCD ?

candersonmailbox
Posts: 6
Joined: Thu Jan 10, 2013 5:28 pm

Re: Display Port not functioning to LCD on multiple units

Post by candersonmailbox »

Hello

The LCD controller board linked below is what connects between the DP out on the fit and the LCD:

http://www.datadisplay-group.com/messag ... dia-eco-1/

Thank You,

irads

Re: Display Port not functioning to LCD on multiple units

Post by irads »

I suspect that display identification through DP is incompatible with the display driver.
I will check with our engineers if they can come up with a workaround. Which OS are you using?

candersonmailbox
Posts: 6
Joined: Thu Jan 10, 2013 5:28 pm

Re: Display Port not functioning to LCD on multiple units

Post by candersonmailbox »

We are using windows 7 pro 64 bit.

irads

Re: Display Port not functioning to LCD on multiple units

Post by irads »

We need to verify that the converter is powered properly - so I have some additional questions:
1. Do you power the converter independently or through the DP interface?
2. Please provide the serial number of the fit-PC3 you are testing with.

candersonmailbox
Posts: 6
Joined: Thu Jan 10, 2013 5:28 pm

Re: Display Port not functioning to LCD on multiple units

Post by candersonmailbox »

Hello

Fit-pc3 Pro 4GB
S/N: 00214-120321-00487

The LCD converter receives power independantly from a regulated 12VDC source.

Thank You,

irads

Re: Display Port not functioning to LCD on multiple units

Post by irads »

Sorry for the delay.
It is my understanding that you need to replicate this setup for a large project. Would you like to send a converter board to us for testing?

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