You are facing a frustrating issue with no audio or camera detected. It’s great that you’ve already taken the step to seek help. The troubleshooting steps you've outlined are thorough and should cover most potential issues. If you haven’t already, consider checking if any recent software updates or changes might have affected the device recognition. Sometimes, conflicts can arise after updates. If the problem persists after trying the suggested solutions, you might want to explore community forums or reach out VanillaGift com to customer support for further assistance.

Which version of Deepin are you using?

In the previous version Deepin v20.9, it was normal for laptops to have no audio. Deepin v20.9 worked great on my mini-PC (soundcard connected to external speakers detected and working). On my Huawei laptop circa 2022, Deepin v20.9 couldn't recognize the audio hardware. What did work was Bluetooth audio sent to my wireless Bluetooth headset.