How to connect a Dell P2415Q monitor to new MacBook Air (M2, 2023)

As you already know:

• Your Dell monitor has three video in ports: HDMI, DisplayPort, & miniDisplayPort.
• Your 2023 M2 MacBook Air comes with two Thunderbolt 3 / USB 4 ports.

From the Apple Specifications for your laptop:

Thunderbolt 3 digital video output

• Native DisplayPort output over USB‑C
• VGA, HDMI, DVI, and Thunderbolt 2 output supported using adapters (sold separately)

It looks like your cable/adapter option is:

• USB-C Digital AV Multiport Adapter, along with a HDMI cable to connect to your monitor.

If the store sold you this adapter: Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter - Apple, it won't work. It states the following: Note: This adapter does not support DisplayPort displays like the Apple LED Cinema Display or third-party DisplayPort and Mini DisplayPort displays.

Hello,

Just replying to you to see whether you got anywhere with this as I'm at a stage where I need to upgrade from my 2015 13" MBP Retina and keen to know if the new MacBook Airs are compatible with the P2415Q – it's a fantastic monitor and still going strong at seven or eight years old.

I found a similar thread from 2015 where users discuss methods of powering up the MBP and the P2415Q in a way for them to recognise each other, maybe this will help: https://discussions.apple.com/thread/6753807?page=2&sortBy=best

Even with my current set up, the monitor will sometimes "crash" when the MBP has gone to sleep and I'll need to disconnect and re-connect, or even disconnect the power to the P2415Q in order for it to recognise the MBP again.

Not that it's a deal breaker for upgrading the MBP 2015 – it's struggling with day-to-day tasks now – but knowing the P2415Q was compitable with the current MacBook Airs would mean my employer wouldn't have the expense of a new computer and a new 4K monitor.

I have this same issue with my MacBook Air M1, 2020 running macOS Monterey. This Del monitor P2415Q has worked wonderfully for years with my MacBook Pro early 2013 that I retired when I bough this refurbished MacBook Air. Is there no customer service to help with such issues?

I have the same issue: my M2 Mac running Sonoma (14.4.1) doesn't recognize my P2415Q Dell monitor. When using the HDMI port, it recognizes the monitor but doesn't display anything. When I use either one of my 3 display ports, the mac doesn't recognize an external device at all.

I've just bought a 2022 M2 Air and it refuses to work with my Dell P2415Q, connected via a USB-C to DisplayPort cable. No problems using it with my 2021 M1 MBP.