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DR HDMI 8K / Glossary / IP interrupts
CONTROL

IP interrupts explained

IP interrupts are unprompted status messages: the device speaks up as soon as something changes, so a controller does not have to keep checking.

The short explanation

Two ways for a controller to stay informed. Polling: ask for the status every second or so and compare. Interrupts: the device sends a message the moment something changes.

Where you run into it

Polling is simple but wasteful, and it always lags by up to one polling interval. Interrupts are immediate and quiet, so a touch panel updates the instant a source is switched on rather than a second later.

The reason it is not on by default is that unsolicited messages confuse a controller that was not expecting them. Some control systems need it, others break with it — hence the switch.

How the DR HDMI 8K handles it

IP interrupts are off by default on the DR HDMI 8K and can be switched on in the CONFIG section. Turn them on if your control system expects the unit to announce changes; leave them off if it polls.

About the DR HDMI 8K: a 1500MHz / 48Gbps HDMI 2.1 repeater that reads, stores and rewrites EDID between your source and the rest of the system, and shows the link state on its OLED and web page — so a failing chain becomes something you can test one step at a time. See what the unit does →

See also

IP control →Telnet →IP port →HTTP control →embedded web server →

Further reading

Manual: CONFIG options →Manual: IP and Telnet control →

Want to test your own HDMI chain?

The DR HDMI 8K is sold through the HDFury.eu web shop.

DR HDMI 8K on HDFury.eu ↗