2024 MBP M4 Pro crashing using two external displays

what make&model for each display and TV set, or a link to its specs?

what cables, adapters and docks are being used to make the connection?

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Kernel Panic Reports are stored in the Folder at:

/Library/Logs/DiagnosticReports

If you copy and paste that string into: 

Finder > Go menu > Go to Folder

it will take you to the Folder where those reports are stored.

Kernel panic reports are named with Date&Time and start or end in ‘panic’

If you find one, please post as much as you can here, by using the “additional text” Icon in the reply footer (looks like a paper with writing). (Once the report devolves into incessant software-names or incessant Base-64 dumps with lots of AAAAAA lines, you are done.)

Please don’t post more about 20 lines of any other types of reports — they are interminable, and any information useful for this purpose is on the first screenful.

<< It will also flicker one of the displays on and off until you switch ports >>

For ThunderBolt displays, are you using discrete thunderbolt cables, or just the captive display lead-in cord?

Cables "shipped in the box' are notorious for being 'lowest bidder' cables.

Are you using a certified cable that meets the specs below?

HDMI cables you want for HDMI-only Displays (higher resolutions than 720p TV sets) are marked as Certified with an anti-counterfeiting tag and are labeled:

"PREMIUM High Speed HDMI cable" or that + "with Ethernet" (up to 4K at 30Hz) --OR--

“ULTRA High Speed HDMI cable" or that + "48G" (supports higher resolutions and backward-compatible)

Cables with No Certification tags are good for your standard 720p TV set, and not much more.

HDMI was invented for HD TV sets. it works great at its original resolution of 720i or 720p. At higher resolutions, it quickly develops issues that are complex to solve, and the cables and adapters required to solve are NOT intuitive.

nothing in that report that I can easily decipher either.

Lets try a different approach.

Consider downloading and running this little "discovery" utility, Etrecheck. It changes NOTHING. Etrecheck was developed by a senior contributor here, and uses mostly system calls and simple tests to collect often-needed information.

it contains little tests for speeds of devices, CPU utilization, memory usage, energy usage and a digest of recent problems, in one easy to use package. it does not even need to be Installed. Because less can be learned when your Mac is running great, best time to run is when your problems are actually occurring, if possible.

if you follow the directions faithfully, its report (pre-laundered of all personally-identifiable information) can be "Shared" to the System ClipBoard, then Pasted into an ‘Additional Text’ window in a reply on the forums.

Use Etrecheck Pro for free:

http://Etrecheck.com

The amount of data you get can be daunting. If you POST your report, some Readers here are willing to look over those reports, and can provide valuable insights.

Then start a reply on the forums, click the "additional text" icon, and PASTE

<< Hope this is the right report. >>

nope, nothing in there that seems helpful.

<< if I go away to do something and come back it's restarted because it crashed. >>

I don't see any evidence of a crash and restart in your reports.

¿How did you decide it restarted?

That looks to be a panic of the Apple Coprocessor for I/O.

I do not think that coprocessor is deeply involved in display processing.

¿Do you have your phone connected to your Mac?