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ronag86
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Thunderbolt 3 Firmware update on XPS 9550 destroys HDMI output

Same issue. Latest Thunderbolt Firmware update made my HDMI output unusable. I can not connect to an external monitor. We need a fix ASAP! Dell technical support was unable to help so far...

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Community Manager
Community Manager

RE: Thunderbolt 3 Firmware update on XPS 9550 destroys HDMI output

Hi ronag86,

Thanks for posting.

Apologies for your system not working as expected.

Before you updated the Thunderbolt Firmware,  were you able to upgrade the Intel Thunderbolt Controller Driver to A01 before upgrading the Intel Thunderbolt Firmware?


Dell-Robert P
Social Media Support
#IWork4Dell
To help us troubleshoot, please send us the Dell service tag number via a private message
Would you like to be a Dell Community Rockstar?


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ronag86
1 Copper

RE: Thunderbolt 3 Firmware update on XPS 9550 destroys HDMI output

Yes, it was upgraded at the end of November to this:

Intel-Thunderbolt-Controller-Driver_7X8Y6_WIN_16.3.61.275_A03_01.EXE

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Community Manager
Community Manager

RE: Thunderbolt 3 Firmware update on XPS 9550 destroys HDMI output

Were you able to try these?  www.dell.com/.../dell-thunderbolt-dock-tb16-driver-installation-guide


Dell-Robert P
Social Media Support
#IWork4Dell
To help us troubleshoot, please send us the Dell service tag number via a private message
Would you like to be a Dell Community Rockstar?


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