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

Hi there,

Just updated my BIOS to 1.0.10 this morning. It apparently updates the firmware of the TB3/USB Type-C port. Probably solves some Power Delivery issues. 

Unfortunately, after the update, DisplayPort is no longer working properly over USB Type-C. I have tried four different adapters, and only one works sporadically after the update.

2020-05-20 (3).png2020-05-20 (4).png

I did a search on Reddit and apparently I am not alone.

I am unable to downgrade the BIOS back to 1.0.7 despite having "allow bios downgrade" option enabled in BIOS. Some of the updated firmware do not roll back.

Anyone having these issues too?

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

Bump.  We can't be the only ones having this issue.  When can we expect a BIOS fix?

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2 Bronze

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

I also have the same issue as well. Would appreciate any troubleshooting methods if available

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3 Argentum

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

Could you guys list down the problematic adapters you are using? Thought it might be useful for the engineers to troubleshoot. So far I've had issues with roughly half of my adapters. I had no problems previously.

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

@describee Mine is Anker USB-C to HDMI 4k @ 60Hz 

I also had no problems prior to the BIOS update. Worked perfectly fine with all my monitors and TV. Does not work anymore.

My fiance's work laptop (Thinkpad) will output with the Anker adapter.

Even tested her laptop on my Dell P2421DC via HDMI. Thinkpad will output fine, XPS13 will NOT output. 

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2 Bronze

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

@describee @JayKay808 

BIOS 1.0.11 is available.  I won't be able to test it for a few hours and I will be shipping it to Dell later to fix my Webcam.

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

@LiquidIce012 I just flashed but it didn't seem to fix things 😞

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3 Silver

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

I can confirm as well that my adapters (USB-C to HDMI) is not working now. My Dell dock, however, DOES work...

I have another type-c hub/dock arriving today, so I will let you know what happens with that one.

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

@Kyle Sh. Just to confirm you had no issues on 1.0.7, and the newly released 1.0.11 doesn't solve it?

Which hdmi adapter are you using?

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

Correct - no issues before, but now it will constantly say the USB device is not recognized, etc.

The adapter doesn't seem to be sold on Amazon anymore, but it's name was: TechOrbits Thunderbolt 3 USB C Type C to HDMI/PD to Female 2-in-1 Adapter Converter Cable HDMI 4K and Type C charger Alumium Finish compatible with 20

Pretty basic USB-C to HDMI adapter. Worked fine before with multiple computers/phones.

EDIT: My bad, I did not realize there was another bios update today. I am still on 1.0.10. I will update and let you know if anything is fixed for me.

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