NOC Display Server — reference Debian 12 configuration

Reference configuration files and operational notes for a Debian 12 GPU server driving a control-room video wall in a 24/7 NOC (network operations centre) deployment.

Based on production deployments running Craft Wall on commodity hardware — typically AMD Ryzen 7 / Intel i7 with an NVIDIA RTX-class GPU driving 8-16 4K displays.

What's here

• etc/systemd/ — systemd unit examples for the wall composer and a watchdog
• etc/sysctl.d/ — kernel tuning for sustained NDI / RTSP source counts
• etc/nvidia/ — NVIDIA driver persistence-mode and Xorg notes
• etc/network/ — netplan reference for a dual-NIC NOC server (one NIC management, one NIC AV-over-IP)
• docs/operational-checklist.md — daily / weekly / monthly maintenance checklist
• docs/source-budget.md — practical bandwidth math for typical NOC source mixes

Hardware reference

Tested on:

• AMD Ryzen 7 7700 + 64 GB DDR5 + NVIDIA RTX 4070 — 16 × 4K @ 60 with 12 NDI + 4 RTSP + 4 KVM sources
• Intel Core i7-13700 + 32 GB + NVIDIA RTX 4060 Ti — 8 × 4K @ 60 with 8 NDI + 2 RTSP + 2 KVM

GPU is the bottleneck. CPU and RAM rarely saturate at typical source counts. NVMe storage matters for the wall journal (audit-trail of state changes); a 500 GB drive carries 12+ months of state at typical NOC change rates.

Not what's here

This repository does not include the Craft Wall video wall composer itself — the composer is proprietary. What's here is the OS-level configuration around the composer that any Linux video wall stack (Craft Wall, Hiperwall, Userful self-managed) benefits from.

Licence

MIT — these are configuration examples, not product code.

See also

• Craft Wall — Video wall for NOC reference architecture — companion long-form article
• Craft Wall — TCO calculator