My system information

Dell Laptop
OS: Ubuntu 18.04.2 LTS x86_64
Host: Inspiron 15 7000 Gaming
Kernel: 4.15.0-46-generic
Uptime: 1 day, 3 hours, 37 mins
Packages: 6514 (dpkg), 12 (snap)
Shell: bash 4.4.19
CPU: Intel i7-7700HQ (8) @ 3.800GHz
GPU: Intel Device 591b
GPU: NVIDIA GeForce GTX 1050 Ti Mobile

Running games in a HDD NTFS partition and OS installed on a SSD.

• Steam client version (build number or date):
  1550534751
  

• Distribution:
  Ubuntu 18.04.2 LTS x86_64 4.15.0-46-generic

• Opted into Steam client beta?: [Yes/No]
  YES

• Have you checked for system updates?: [Yes/No]
  YES! Up to date

Description:

At about 2 months ago, which was the last time I used this controller on steam, Games such as GTA 5 (using steam's proton 3.7), Mad max and X Plane were detecting my controller and working flawlessly, but I realized it was no longer working yesterday. I always try to keep everything up to date. It is a PS3 bluetooth controller, it is detected by steam and works for controlling the steam's big picture menu. I tried all combinations I under steam's controller configurations, tried reseting the layout, reinstalling the controller firmware but the games don't really detect this controller as it used to be.

I googled for this issue and saw some old issue regarding bad user permissions, so I did the chmod 777/dev/uinput, added my user to the input group, restarted steam and still same problem. Steam itself detects the controller but no response in game.

I could not find anything about controller logs so I don't think they will be really important.
I have a Logitech flight simulator usb joystick and it still works. I couldn't test with a convencional usb gamepad yet, but with this ps3 plugged in usb still didn't work after a steam restart.

Steps for reproducing this issue:

1. Plug a ps3 controller
2. Start steam (beta, linux)
3. Start any game that can use a joystick
4. The ps3 wireless joystick wont work

Important notes

• The controller is detected using jstest and works inside steam and steam big picture
• This is not a input permissions issue
• This same controller, OS and machine was working on previous steam's beta releases, except that ubuntu also had some updates....?
• This is not a steam proton issue, since mad max is linux native (I was testing with GTA 5 first which made me think it could be a proton issue....)
• If any log file is needed please tell me how to generate!