Comment 79 for bug 1955383

@hobble

When you install 22.04 stock Ubuntu please enable the oem meta in software-properties-gtk > additional drivers, then do the full dist-upgrade by $ sudo apt dist-upgrade. Please also make sure the BIOS is the latest,https://www.dell.com/support/home/zh-tw/product-support/product/xps-13-9320-laptop/drivers. You can upgrade the BIOS by exe file or run $ sudo fwupdmgr update. If it is still black in webcamtest, please attach kernel log and $ apt list --installed or $ dpkg-query -W, so that I can check it for you.