DP Source Interoperability Testing

Interoperability Testing of DP Source Devices

The communication between a moldern video and audio source and the display is increasingly complicated. The most annoying situation for a user who just upgraded his PC or monitor is that part of the functions in his new device do not work. The problem usually arises from poor interoperability between the two connected devices.

In spite that all digital display components found in the market are certified and checked for compliance there are many things that might go wrong. It is a very complicated task for e.g. the Source to parse the Sink EDID in a proper way and the two parties to negotiate all possible situations in mutual acceptance. Only one to one testing will finally reveal that all goes as planned.

An interoperability tool like Unigraf UFG Console will considerably help the tester to completely understand tested situation. It will be difficult, or even impossible, with a normal sink or source device to do that. Unigraf's tools have been found user friendly and industry leaders around the world are using them to ensure suberb interoperability of their devices.

EDID Emulation

The key feature of Unigraf's approach is to use a test frame grabber board as the sink device for the testing. During the test the frame grabber in a way emulates a TV or a monitor. You can either use a "true" emulation by using the EDID information from a real world TV or monitor or you can alternatively use a test EDID and include one feature at a time. The EDID editor included in Unigraf's software tool allows for both workflows.

Your Private Plug Test

Most of the interface standard communities have their regular Plug Test events for testing the interoperability between devices from different vendors. Plug Tests are a very functional evant but they are a time consuming and costly way of verifying the inoperability. Unigraf's approach provides you a more simple way of testing the interoperability issues in-house.

By using Unigraf's test tools you do not need to have the actual reference Sink Devices like TVs or monitors in-house. All you need to do is to copy the EDID hex from the problem Sink and program it to Unigraf's test sink board. This kind of approach will save a considerable amount of both time and money by avoiding the cost and delay of the shipping.