# Technical article proposal – NEC MultiSync V404-RPi, Raspberry Pi OS Trixie and Anthias **URL:** \ **Category:** Anthias\ **Created:** [August 10, 2026, 9:27am UTC](https://forums.screenly.io/t/technical-article-proposal-nec-multisync-v404-rpi-raspberry-pi-os-trixie-and-anthias/6762 "2026-08-10T09:27:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![caimano](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.screenly.io/caimano/32/276_2.png) [@caimano](https://forums.screenly.io/u/caimano)\ **Post date:** [August 10, 2026, 9:27am UTC](https://forums.screenly.io/t/technical-article-proposal-nec-multisync-v404-rpi-raspberry-pi-os-trixie-and-anthias/6762/1 "2026-08-10T09:27:52Z")
Hi, @vpetersson , @nicomiguelino I would like to ask whether the forum might be interested in a technical article about upgrading **NEC MultiSync V404-RPi displays with their internal Raspberry Pi Compute Module**. We have successfully upgraded the original systems based on **Compute Module 3/3+** to **Raspberry Pi OS Trixie 64-bit Lite and the latest Anthias releases** , including resolving some display-specific video/DRM issues. We have also experimentally tested and successfully validated a **hardware upgrade to the Raspberry Pi Compute Module 4S** , while retaining the original NEC carrier board. The entire process has been documented step by step, including diagnostics, configurations, hardware/software testing, issues encountered and their solutions, as well as technical exchanges through **second-level support tickets with NEC and Sharp’s official European support centres** , and the various devices purchased and tested during the investigation. If this could be useful to the community, I would be happy to organize all the material into a detailed technical topic/article and make the results of this work available to other users. Please let me know if you would be interested. Best regards. ---
**Author:** ![vpetersson](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.screenly.io/vpetersson/32/8_2.png) [@vpetersson](https://forums.screenly.io/u/vpetersson)\ **Post date:** [August 10, 2026, 10:31am UTC](https://forums.screenly.io/t/technical-article-proposal-nec-multisync-v404-rpi-raspberry-pi-os-trixie-and-anthias/6762/2 "2026-08-10T10:31:32Z")
That’s a great idea! I think that would be very good information for the community. I’ve been thinking about extending Anthias with some of the NEC/Sharp API data too, but haven’t gotten around to do that. ---
**Author:** ![caimano](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.screenly.io/caimano/32/276_2.png) [@caimano](https://forums.screenly.io/u/caimano)\ **Post date:** [September 16, 2026, 9:12pm UTC](https://forums.screenly.io/t/technical-article-proposal-nec-multisync-v404-rpi-raspberry-pi-os-trixie-and-anthias/6762/3 "2026-09-16T21:12:16Z")
> [@NEC MultiSync V404-RPi: from CM3 to Raspberry Pi OS Trixie, Anthias and the Compute Module 4S](https://forums.screenly.io/t/nec-multisync-v404-rpi-from-cm3-to-raspberry-pi-os-trixie-anthias-and-the-compute-module-4s/6771): > > Posted on behalf of @caimano — the research, testing and write-up are all theirs. Technical case study by Fabio Celli / Caimano — IT Consultant · July–August 2026 Experimental validation — not an official Sharp/NEC upgrade certification. Objective: extend the operational life of approximately 50 NEC V404-RPi professional displays while retaining the original display and carrier board, updating the software stack, and assessing a possible hardware upgrade to the Compute Module 4S. dart Re…