XPS 13 9300, BIOS 1.0.10, USB Type-C to DP adapters no longer work

[BlipBloop]

That was like three weeks ago.  Did the motherboard swap help?

[eyforia · Accepted solution]

Yes, confirmed - swapping the motherboard has solved thunderbolt issues.

XPS 13 9300 + latest BIOS 1.3 + CalDigit TS3 Plus Thunderbolt 3 dock = works fine under Ubuntu 20.04     

[fkubrick]

Glad to hear this!

I'm waiting for my own replacement to occur, but DELL seems to have a few supply issues in the UK, so hopefully by the end of the month, after 6 months of DELL support beating around the bush, I should be able to enjoy a computer that works. I'll report back.

[eyforia]

Update:Running BIOS 1.4.1 now.. no issues with Thunderbolt3 since after the motherboard has been replaced. 

[fkubrick]

Same here, motherboard replaced and now it works with 1.4.1, wasn't working before with the same BIOS version.

[fkubrick]

Hello,

I have had a MB swap too and it fixed my USB-C docking station problems. However, I just bought a Caldigit TS3 plus, and while it works well on Windows, it is not the case on Linux.

Can I ask you which model you have? (4k display? 32GB RAM?)

Thank you!