I have a quite uncommon problem on ubuntu 20.04 since I installed it on a new computer. My usb ports and webcam are perfectly working just after boot. But after wakup from sleep (some times 2 suspends are necessary) both of them are no more detected. (I guess the issue is only with USB but that the webcam is internally connected with USB)
- webcam no more in
/dev/video* - no any USB connected devices in
lsusb
I tried to find more detail about this in dmesg but found nothing related (I'm not an expert so doesn't mean there is nothing at all).
Do someone know a solution, or how I can investigate on this ?
note
maybe the suspend is not the relevant (or not the only ) factor because this already happend once while I was using the computer: suddenly the mouse disconnected and when I checked all other devices were gone.
config
- Asus Zenbook flip 14 UM462DA
- AMD ryzen 5 3500U
- ubuntu 20.04 (up to date on 2020.11.05)
- distro kernel (linux 5.4.0-52-generic)
