After more research this is not a bug. Apparently the old kernel was more tolerant towards the Usage Maximum of the HID descriptor of the joystick being misconfigured to 0x29 0x01. Changing it to 0x29 0x02 fixed the issue for kernel 5.0.
Please delete or close this issue. ** Changed in: linux-signed-hwe (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847830 Title: HWE kernel 5.0 breaks Joystick 2nd button To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1847830/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs