Table of Contents

> Customers that wish to sample or purchase the ADV7672 must be licensed HDMI 2.1 adopters listed at HDMI.org and licensed HDCP 2.x adopters listed at Digital-CP.com.

KVM

hi this is kvm all about kvm only kvm

what im trying to get is seemless switching between sources. this calls for a unified EDID “fingerprint” from all sources.

                     ┌─► HDMI Dummy plug
GPU ──► 1x2 splitter │
                     └─► KVM

dummy hdmi

has circuitry to store and transmit EDID (Extended Display Identification Data) emulation information to the GPU. by using an EEPROM (Electrically Erasable Programmable Read-Only Memory) chip programmed with the EDID data of a typical monitor. a.k.a hdmi emulator plug

there are such dummys that have a passthru female socket. i have not find a nice one yet

nice one, with cloning capabilities. amz mirror

generic HDMI splitter 1x2

i got the following in my weekly meeting with aliexpress packges at the mailroom.

MS9332 IC

The MS9332 is a one-to-two active splitter that supports a signaling rate up to 3.0Gbps. With 3.0Gbps capability, the MS9332 can support the new 4K@30Hz video format. The MS9332 equalizes incoming TMDS data with optimal quality regardless of the incoming signal quality. The highly acclaimed equalization technology provides for support of long or low-quality HDMI cables at even the highest speeds. Input terminations of the TMDS inputs and output current levels are both programmable. The chip also supports on-chip HDCP Keys RAM and EDID Memory. mirror Function Block Diagram

Features

teardown

pxl_20240129_202515495.jpg pxl_20240129_202419111.jpg

splitter EDID copy

using

  1. GSV2002 > “2 In to 2 Out HDMI2.0 Repeater with Audio Extraction/Insertion” IC pdf
  2. GD32F103 > ARM-M3 page

pxl_20240908_123215675.jpgpxl_20240908_123246811.jpgpxl_20240908_123230816.jpgpxl_20240908_123220210.jpg

EDID

https://i.imgur.com/8wUaQZq.jpeg https://www.eevblog.com/forum/reviews/teardown-panlong-hdmi-audio-splitter/msg701691/

parts

http://www.ultrasemi.com/index.php/td-3-48-77-255

suppliers

local

topirzul