Have you tested your discrete GPU? Does it work?

Yes, all hardware tests have been performed and passed successfully including NVIDIA and Intel GPUs. I have read somewhere that only Intel GPU can render graphics for HDMI on those machines, I also tried disabling NVIDIA GPU in Windows - without any effect.

Same model, similar problem. Detected that I was connected to my TV but the TV showed no signal. After updating all of my drivers the problem is worse (screen goes black and no signal as opposed to used to being able to see the integrated screen). Rolling back to Intel uhd 630 v23 (oldest available), no luck. I’ve even reconnected the hdmi’s hardware insert to no avail. Please let me know any progress updates on this issue!

You can try running a live Linux to check if the HDMI output will work for you as it did for me. Unfortunately I was not able to resolve the issue, and I returned the computer. Now I have another model without HDMI issues, so I can't help anymore.

Same issue.  This is infuriating.  Why can't Dell just put a recall/defect notice on their website?  This is junk. Clearly the HDMI port doesn't work at all, even using a docking station or USB-C to HDMI converter.

Myself I was lucky to be able to return the laptop to the seller, so mystery remains unsolved for me. Luckily Copies of Precision 5520 and 5540 I have don't suffer for the same problem.

Please try the following, go to BIOS and disable all USB-C and Thunberbolt features, save the settings, restart and go again to BIOS and enable all features again, save, restart, it helps sometimes.

I got this from a support thread somewhere else, worst case you may have to set the BIOS settings to default afterwards.

Same problem. I installed ubuntu (dual boot), and with ubuntu it is working. After connecting with ubuntu I have to restart the laptop and the HDMI works in Windows 11

Same issue for me. Just stopped working suddenly (maybe a driver update??)

Display is detected in Windows but no output. Mine does work with a USB adapter luckily.

Overall I'm extremely disappointed with the laptop. I've had an engineer out a number of times for a new battery, hard drive, complete new motherboard. I'm now out of warranty and the next time it goes wrong I'm moving away from DELL.

Anyone figure this out? I'm a professional speaker and I rely on my HDMi output on my Precision 5530. USB-C outputs just fine.

I'm made sure OS and al drivers are updated (Windows 10, 64 Bit)

The monitor (I tried multiple) shows up in Device Manager, I have it display set to "Extend" so when I connect the HDMI, my la[top behaves like there is a monitor connected (mouse can go off screen, I can even send windows to the other screen) but no data is being sent becuase the 2nd monitor says "No Signal"

Things starts flickering about 4-6 weeks ago and finally died all together together today.

Super frustrating, any help would be appreciated!