У вашего броузера проблема в совместимости с HTML5
Quick info from the video:
- This is my SECOND controller with this issue (happens after about 2 weeks use)
- Power cycling hasn't worked
- Using only the wire hasn't worked
- Cleaning the insides of the controller (air) hasn't worked either
- Happens regardless of platform (Linux or Windows)
- Haven't dropped the controller or mistreated it in any way
Here's the accompanying thread of the steam community forums:
https://steamcommunity.com/app/353370/discussions/0/496880503070569171/
Some other things I've tried:
- Re-calibrating the controller hasn't worked
- Flashing older firmware and updating hasn't worked
See here for a great guide on fixing your bricked Steam Controller as a result of a failed firmware update (not related to this issue):
http://steamcommunity.com/sharedfiles/filedetails/?id=572740074
If you are experiencing this issue and you've found a fix for it, please let me know in the comments. Thanks!