====== VIM4 HDMI Input for 5.4 Kernel ======
===== Introduction =====
This documentation will introduce the usage of HDMI Input.
===== Preparation =====
HDMI input preview can only work under framebuffer console, so you need to use the server image, you can install via OOWOW.
If you use the desktop image, you need to switch to the framebuffer console.
```shell
sudo chvt 3
echo 1 | sudo tee /sys/class/graphics/fb0/blank
echo 0 | sudo tee /sys/class/graphics/fb0/blank
```
If you want to go back to the desktop ''sudo chvt 2''
===== Install HDMI Input Demo =====
```shell
sudo apt update
sudo apt install libgrpc++1 libboost-system1.74.0
wget https://github.com/numbqq/hdmiin-demo-debs-aml/raw/5.4/jammy/arm64/hdmiin-demo_0.5-202211_arm64.deb
sudo dpkg -i hdmiin-demo_0.5-202211_arm64.deb
```
===== Test =====
* Connect your VIM4 HDMI Out to an HDMI Display
* Connect your HDMI OUT cable to VIM4 HDMI IN port
* Execute the HDMI Input demo command ''sudo hdmiin-demo''
If everything is OK you will see the HDMI Input source on your display.
===== Known Issues =====