Hello, the HDMI output on my XPS 9570 is not working. It works without problems on Ubuntu but not on Windows.

It worked without problems but for a couple of months, it hasn't been working.

The display shows in device manager and I see the settings in Windows Advanced display settings but when connected the screen is blank, showing "no signal".

The display is working as I tested it on different machines and I also tried different HDMI cables so it's definitely a problem with Windows drivers. I've read other similar issues and tried the solutions outlined in those posts and still nothing.

Here are the things I tried to fix the problem:

• BIOS rollback to different versions (1.15, 1.17.1, currently running 1.23)
• Update of Intel/Nvidia drivers both from Dell website and from Intel's, Nvidia's with different versions
• Clean install of Intel/Nvidia drivers
• Clean install of Windows
• BIOS factory reset
• Swapped back to Killer wireless network if for some reason that was conflicting.
• Factory reset of Monitor

Any help would be greatly appreciated. My only solution right now is to buy a thunderbolt hub with different display outputs, but I would really like to avoid that.

Thanks