gnat8

Actually I have it on a 10 cm cable extension and I tried also with a passive USB hub. No difference.

 Is it normal that only ch341 and pl2303 are loaded?

It replies "could not insert module, invalid module format". In the meantime I'm trying different usb cable, powered hubs, bios option. Many problems to be solved here..

 Other than HW issue, I'm still not able to load the module. I removed old cp210x.ko, and reloaded w/o positive result. Everything done after 'sudo su' command