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DMP 4310 display autodetection failed

Dear All,

We currently test DMP 4310G to display digital signage to displays, but somehow HDMI autodetection failed on most of the displays.

We have LCD NEC, Samsung, EX90, and CTS500 as display.

When we connect DMP4310 via HDMI to NEC, Samsung and CTS500, they just blank (even the boot page where IP address is usually shown).

DMPDM shows that the autodetection is failed.

But when we connect DMP4310 to EX90, it can display content perfectly.

I tried to disable autodetection and enter resolution manually ( i checked the datasheet for native resolution of each display ) but still no results.

I also find this document on Cisco:

DMP 4310G Notice Regarding HDMI/DVI Effects on Autodetection

A corner case exists that is mildly disruptive. It is not likely to affect your organization. To understand

this corner case, assume that all of the following statements are true simultaneously.

• Your DMP model is 4310G.

• Your presentation system’s media signal interface is DVI, not HDMI.

• EDID data in the firmware for your presentation system misrepresents its native resolution.

• The falsely claimed resolution is an HDMIstandard instead ofa VESA standard.

In this case, your DMP 4310G proceeds as if the native resolution is low, to ensure that your digital sign

shows anything at all.

Any comments are really appreciated

Best Regard


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