The 5 Big Problems with DisplayPort 2.1

DisplayPort 2.1 is the latest generation of DisplayPort connectivity that is slowly making its way to the display market, but there are 5 major problems with it that we need to talk about.

These are not widely understood and there’s a lot of hype and misinformation about this new connection, so we’ll try and explain in detail what the problems are, the key things you need to understand and look out for, and also tackle the question as to why DP 2.1 hasn’t really been used much so far.

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PURCHASING

Relevant products mentioned:

💵 Asus ROG Swift PG27AQDP: https://geni.us/sVA573F
💵 Gigabyte AORUS FO32U2P: https://geni.us/xaMDn
💵 Samsung Odyssey Neo G95NC: https://geni.us/KI6E
💵 Sony INZONE M10S: https://geni.us/nWbVpx

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USEFUL LINKS

🔷 (May 2025 update) Loads of DisplayPort 2 1 Testing and Updates:    • Loads of DisplayPort 2 1 Testing and ...  
🔷 When is DisplayPort 2.1 Going to be Used on Monitors?: https://tftcentral.co.uk/articles/whe...
🔷 A Guide to DisplayPort 2.1 (and previously 2.0) – Certifications, Standards, Cables and Areas of Confusion and Concern: https://tftcentral.co.uk/articles/a-g...
🔷 DisplayPort 2.1 Has a Cable Problem (Monitors Unboxed):    • DisplayPort 2.1 Has a Cable Problem  
🔷 NVIDIA DSR and DLDSR with DSC displays: https://tftcentral.co.uk/news/nvidia-...

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OUR TEST SYSTEM

Our thanks to the following manufacturers for support in the build of our new test system (includes affiliate links):

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◾️ Asus ProArt B650-Creator: Buy Asus B650 motherboards here: https://locally.link/CWX3
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◾️ NVIDIA RTX3090: Buy NVIDIA RTX graphics cards here: https://locally.link/TxVw

◾️Testing performed using Portrait CalMAN Ultimate: http://www.portrait.com/

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TIMESTAMPS

00:00 Intro and what DP 2.1 is, and offers
05:28 1) Not all DisplayPort 2.1 connections are the same
09:14 2) Open to abuse and "fake DP 2.1" connections
10:31 3) Source devices just aren't ready yet
13:11 4) Scalers aren't as common either
13:59 5) Cables are very limited
17:59 Wrap up, summary and thoughts on the future use of DP 2.1

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