01-08-2014 12:24 PM - last edited on 03-25-2019 09:11 PM by ciscomoderator
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 :-)
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01-08-2014 05:01 PM
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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01-08-2014 12:32 PM
Hi,
Which PC resolutions have you tried to use?
Regards
Paulo Souza
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01-08-2014 12:33 PM
We used standard 1024X768 resolution
01-08-2014 05:01 PM
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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01-20-2014 06:56 PM
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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