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NQWall

Stand-alone video wall software

A video wall with no server behind it

Video wall software that turns a single PC into a control-room wall with no server, database or browser. It connects straight to NQNVR, lays cameras out on an automatic grid, and adds multi-monitor, spanning, frame sync and a remote control API.

No server, DB or browserRestores layout after rebootMulti-monitor · spanning · frame lockHTTP control API
Platforms
Ubuntu 24.04 LTSWindows 10 / 11
1PC
Drives N monitors
0
Server/DB dependencies
4
Source types (camera, PC, image, video)
Auto
Grid and state restore
Sales inquiryAll products
01
Overview

Overview

NQWall is a single executable that fetches the channel list from the NQNVR REST API, pulls video through the live stream tunnel and renders it on an OpenGL grid. It picks the most square layout for the channel count and keeps unchanged tiles running when channels change. Every change is written to a state file before it is applied, so the wall comes back exactly as it was after a power loss or reboot. One process per monitor allows spanning a single feed across several monitors and frame-locked synchronization between screens. A management agent handles UDP discovery, monitor inventory and configuration deployment so NQVMS can configure the whole wall remotely, and the wall keeps running even when the manager is gone.

Notes

Measured on a two-monitor wall, frame lock reduced seam brightness mismatch to about one sixth of free-running. The wall PC must be on the NVR's IP allow-list.

02
Key Features

Key features

Direct NVR connection

Reads channels from the NQNVR REST API (Digest SHA-256) and video from the live tunnel. Works without any central server, with optional certificate pinning.

Auto grid, seamless relayout

Chooses the most square layout (3×3, 2×2 …) for the channel count, polls the channel list and swaps only the tiles that changed.

Spotlight and control API

An HTTP API selects channels, forces grids, goes full screen and targets monitors. Spotlight enlarges one camera while hidden channels keep decoding, so returning is instant.

Persistent state

Every change is written before it is applied, so the last layout is restored after power loss or reboot.

Multi-monitor and spanning

One process per monitor, each independently controllable. Spanning shows one camera enlarged across, for example, four screens.

Frame lock and view propagation

Master/follower frame-level sync minimizes seams between screens, and one control call to the master propagates to the whole wall.

Many source types

NVR camera channels, NQPCAgent remote desktops, still images (PNG, JPEG, GIF) and looping video files, placed freely on the same wall.

Management agent

UDP discovery, EDID-based monitor identity that survives cable swaps and reboots, configuration push, process supervision and a media upload store.
03
Specifications

Specifications

General
OSUbuntu 22.04+ / Debian 12+ (Xorg) · Windows 11
FormSingle executable plus agent; Windows installer and Ubuntu .deb
RenderingOpenGL grid, software decoding by default (H.264)
AutostartWall or agent mode at login
Integration and control
NVRREST API (Digest SHA-256) · live stream tunnel, optional certificate pin
Control APIHTTP API (token auth) — channels, grid, spotlight, full screen, view swap
AgentAuto-discovery, monitor inventory, config push, media upload
ManagerDiscovered, configured and controlled from NQVMS
Not includedRecording, playback, PTZ UI, layout editor (handled by NQVMS)
Related

Related products

NQVMS

Multi-server desktop VMS

Windows 10 / 11
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NQPCAgent

Remote PC agent

Windows 10 / 11Linux
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NQNVR

Flagship

AI-powered, security-hardened NVR

Ubuntu 24.04 LTSWindows 10 / 11RK3588 (ARM)
Learn more

Sales and technical inquiries

Tell us about your site and requirements and we will recommend a configuration and licensing.

Sales inquiryTechnical supportBrochure (PDF)