Samsung Tizen monitor control

LittleBigMouse can control Samsung smart monitors such as the Odyssey OLED G8 G80SD over the local network when DDC/CI is unavailable.

Pairing

Put the computer and monitor on the same LAN/VLAN.
Open the VCP view for the Samsung monitor.
Select Discover, or enter the monitor IPv4 address manually.
Select Pair and allow LittleBigMouse in the prompt displayed by the monitor.

Before pairing, enable both Settings > All Settings > Connections > Network > Expert Settings > Power On with Mobile and IP Remote. Samsung documents Power On with Mobile as a prerequisite for IP Remote on this monitor. Access Notification belongs to the separate mobile/content-sharing device manager and does not enable the IP-control channel.

If a pairing prompt is displayed, allow LittleBigMouse. Depending on the Access Notification setting and firmware, the monitor may authorize the connection without displaying a prompt.

The association, Wi-Fi MAC address and Tizen remote token are stored per EDID monitor in samsung-tizen.json under the LittleBigMouse configuration directory. The MAC address is obtained automatically from Samsung's device-information API; manual entry is only a fallback. On Unix the file is created with user-only permissions.

Controls

The panel provides power-off, Wake-on-LAN, Home, Settings, Source and directional remote keys. Wake-on-LAN also requires the monitor's network wake option to be enabled; its wording and menu location vary by firmware.

Tizen's local remote channel does not expose readable brightness, contrast or RGB levels. Picture settings can instead be automated with an explicit key macro. A macro contains KEY_ names and optional delays in milliseconds:

text

KEY_MENU,700,KEY_DOWN,KEY_ENTER

Commas, semicolons and + are accepted as separators. A number changes the delay after the preceding key; keys otherwise wait 150 ms. Delays are limited to ten seconds. Build a macro against the monitor's current firmware and picture mode, because Samsung can change menu order between SDR, HDR, Game Mode and firmware versions.

Network details

Discovery uses SSDP multicast and falls back cleanly to manual IPv4 entry.
Device information is read from http://MONITOR:8001/api/v2/.
Remote commands use the paired TLS WebSocket endpoint on port 8002.
The monitor uses a device-generated TLS certificate, accepted only by the client instance connected to the IPv4 address explicitly selected in the UI.
Power-on sends three standard Wake-on-LAN magic packets to UDP port 9.