To reproduce your problem, can you specify steps to reproduce (with version numbers)? Which Ubuntu image did you use for installation? To which udev version did you downgrade? Which camera do you have and how did you connect it to your computer?
To reproduce your problem, can you specify steps to reproduce (with version numbers)? Which Ubuntu image did you use for installation? To which udev version did you downgrade? Which camera do you have and how did you connect it to your computer?