The interesting thing is that my problem is now fixed without editing anything in the settings. I used the "hidd --search" cmd and it worked but after not using the mouse for a while or rebooting it got disconnected. Then I had to boot in Windows (it worked in Win without having to re-pair the devices) and as I said in my last post after returning in Ubuntu I just worked, even at the login screen. After that I restarted the system several times and the mouse just works and it doesn't get disconnected. It even appears in the Known devices list, which didn't happen after running hidd.
I have a Dell Bluetooth 355 internal USB.
The interesting thing is that my problem is now fixed without editing anything in the settings. I used the "hidd --search" cmd and it worked but after not using the mouse for a while or rebooting it got disconnected. Then I had to boot in Windows (it worked in Win without having to re-pair the devices) and as I said in my last post after returning in Ubuntu I just worked, even at the login screen. After that I restarted the system several times and the mouse just works and it doesn't get disconnected. It even appears in the Known devices list, which didn't happen after running hidd.
I don't know what to make of this.