Multiple display

hello all. I am Riadi, from Indonesia. I have a problem. my laptop Lenovo Yoga C640-13IML since upgrade to windows 11, cant using multiple display. the USB C port for external display not function. The all device driver was update. can some one help my problem?? please.

Hi, and welcome to the forum. I would attempt to install the latest chipset drivers from Lenovo. laptops and netbooks :: yoga series :: yoga c640 13imlcontentdetail - Lenovo Support US

Select Windows 11 64 bit as the OS. If none listed change the OS to Windows 10 64 bit.
Also make sure you have the latest bios while you are there.

You can also use the Lenovo Automatic driver scan. laptops and netbooks :: yoga series :: yoga c640 13imlcontentdetail - Lenovo Support US