How to check the HDMI interface status after the boot

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

Hi
How to check the HDMI interface status after the boot， Check whether the HDMI interface is working properly

3

I am not sure what do you mean “HDMI interface is working properly”.

You can use /sys/devices/virtual/switch/hdmi/state to check if it is connected.

4

Thank you very mach!
I looked at the state values is 1, This 1 represents an HDMI interface or the state of the connection on?

5

Yes, it means connected.

7

Hello @WayneWWW

To detect the HDMI we can use /sys/devices/virtual/switch/hdmi/state
But How can we check the resolution of HDMI device connected to HDMI slot.

8

Hi vinay2010singh,

Please help to open a new topic.

Thanks