No external USB-C monitor detection on my Thinkpad T14s AMD Gen3 powered by Fedora 38, maybe after firmware updates


USB-C external monitor detection no longer works on my Fedora 38.

At the end of July, detection was working well.

Here’s all the information:

I have a feeling that the problem occurred after the firmware Lenovo (ThinkPad) ThinkPad X13/T14s Gen 3 AMD was installed, I have upgraded from version 0.1.25 to 0.1.31

These two external monitors are detected when I connect the Thinkpad via USB-C to HDMI.

Question: have you had this problem in the last 3 weeks following a firmware or kernel update?

Best regards,

Same question on Reddit Thinkpad and Lenovo Forum

Problem corrected this morning.

This may be due to the upgrade of Kernel 6.4.11 to 6.4.12 (changelog).