Tom's Hardware has updated their review and the result should apply to the Pi 400Update 12/17 08:02am PT
We've retested powering the Raspberry Pi Monitor via a Raspberry Pi 4's USB 3 port. The Pi 4 being powered by the official Raspberry Pi 4 15W power supply. All of the tests have returned that it is working to spec, and so the relevant section of this review has been updated to reflect this.
Thanks for the help and clarification! Think I know enough about the monitor now to make a decision and I'll be getting myself one very soon.Yes, I've found that it can be powered from the Pi 400 via USB. See my post under the New Raspberry Pi Products thread.can the Pi 400 power the new monitor over USB-C? I have the older 15 watt official supply that shipped with the 400 kit. Is that good enough to do the job, or will I need to upgrade to the newer 27 watt supply if I want to be able to power both devices from one power supply?
Without a separate/second power supply, it will provide up to 60% brightness, 50% volume (this is per the Product Brief; the online Documentation actually has this reversed!). The brightness is not an issue for typical indoor use. The volume limitation for the speakers results in barely adequate sound in a quiet house. I'd recommend trying headphones or earbuds if you don't have near-silent working conditions.
Per the online Documentation, you can't get 100% brightness or volume except via a separate power supply. Even if you're running a Pi 5 with a 27W supply. The reason has to do with USB power delivery limits, not the power supply itself.
Note that the Pi 400 powers the monitor with a USB-A to USB-C cable.
USB-C out of the 400 goes to the Pi 400's power supply.
Statistics: Posted by marimo — Fri Dec 27, 2024 10:42 pm