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Presentation issue on EDGE 95 MXP

Answered Question
Jan 8th, 2014
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I have a customer that has an MXP EDGE 95 system and complains that he is having alot of issues with his laptops doing PC presentations. Some of his laptops work ok, others don't. He reported the following laptops as NOT working:


HP 8740w

HP 2560p

HP 2550

HP 8560p

Dell Precision M6700

HP 6730b


He had no issues with the following laptops:


Dell Latitude E6530

Dell Latitude D630


What is weird is that if he uses a 50 feet DVI to VGA cable for his problem laptops, it works! it doesn't work with the original 15 feet cable. The cable was replaced so we know its not a cable issue. The codec was also replaced at some point. The 50 feet DVI to VGA cable was a solution that Cisco came up with but the customer says it makes no sense....


Anybody have any ideas how I could get this customer off my back? I am certain it's a laptop setting or driver causing the problem but my customer just won't have it.


Thanks for your help everyone :-)

Correct Answer by Jens Didriksen about 3 years 7 months ago

We've seen similar issues in the past with some laptops when using DVI to VGA cables, replaced the cables with VGA to VGA cables and used a DVI to VGA adaptor on the codec itself fixed it. (We also forced "VGA Out Quality to XGA")


/jens


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Paulo Souza Wed, 01/08/2014 - 12:32
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Hi,


Which PC resolutions have you tried to use?


Regards


Paulo Souza

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Correct Answer
Jens Didriksen Wed, 01/08/2014 - 17:01
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We've seen similar issues in the past with some laptops when using DVI to VGA cables, replaced the cables with VGA to VGA cables and used a DVI to VGA adaptor on the codec itself fixed it. (We also forced "VGA Out Quality to XGA")


/jens


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Wayne DeNardi Mon, 01/20/2014 - 18:56
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    2017 TelePresence

Check the refresh rate that you're sending as well as the resolution.  See the Video Inputs section on the Data Sheet that shows the following as supported inputs:


800 x 600 (at 60, 72, 75, and 85 Hz)

1024 x  768 (at 60, 70, and 75 Hz)

1280 x 720 (HD720P; at 50 and 60 Hz)

1280 x  1024 (at 60 Hz)

1280 x 768, 1280x800, 1360x768, and 1366x768 (at  60 Hz)


Wayne
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