DR HDMI 8K
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DR HDMI 8K / Manual / OLED & controls
CHAPTER 3

OLED Display, Info Pages and Rotary Control

The OLED is the fastest way to see what the link is doing without opening a browser: signal state, FRL rate, and both sides of the EDID negotiation.

Power and status

The OLED turns on when power is applied. The DR HDMI 8K logo appears, followed by the default info page. If an active input is connected, the unit reports whether the input and the output sink have handshaken successfully. If a sink is present at the TX output, the TX line shows the current state of the link, including the FRL rate when an FRL signal is active.

DR HDMI 8K OLED default information page showing the active FRL rate, the TMDS clock and the RX and TX connection status
The default info page: FRL rate, TMDS rate and lanes, RX and TX state.

OLED off means either insufficient power or an expired OLED timer, which defaults to 30 seconds. Use the supplied power supply, or press any button if the timer has expired.

OLED on means the unit is powered and ready to accept an HDMI signal.

The rotary switch

The rotary switch has two functions. Up and down navigate the OLED menu or cycle the info pages. Press confirms a choice or selection while in the menu.

Pressing up or down also wakes the unit from sleep or fade mode. Up cycles INFO → RX EDID INFO → TX EDID INFO; down cycles INFO → UNIT INFO → TX EDID INFO.

The four info pages

DR HDMI 8K OLED signal status page confirming an established HDMI link, with the negotiated link rate shown on the display
Default page: incoming FRL rate, RX and TX status.
DR HDMI 8K OLED RX EDID page listing the EDID mode in use together with the advertised resolution and video flags presented to the source
RX EDID: the EDID the source is being given.
DR HDMI 8K OLED TX EDID page showing the EDID read from the connected sink, including its supported resolutions and audio capabilities
TX EDID: what the connected sink actually advertises.
DR HDMI 8K OLED unit information page showing the hostname, serial number, firmware version and current IP address
Unit info: hostname, serial, firmware and IP details.

The RX EDID page shows the EDID mode with maximum resolution, frame rate, colour depth, colour space, chroma, bandwidth in Gbps, and VRR and ALLM status. The TX EDID page shows the same detail for the connected sink, including audio. The unit info page shows serial number, firmware version and IP details — that is where you find the address for the web server.

Source: this chapter follows the official DR HDMI 8K user manual (Rev 1.2). Where a setting or value matters exactly, check it against the complete PDF manual rather than an abbreviated web summary.