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-sig
Please find attached a wireshark capture of the joystick traffic.
** Attachment added: "js_capture.pcapng"
https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1847830/+attachment/5296674/+files/js_capture.pcapng
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Public bug reported:
I've got a generic HID device Joystick with 2 buttons. On the latest
18.04 4.15 kernel both buttons were detected separately and work
correctly. After upgrading to HWE 5.0.0-31 the second button
disappeared. When I press it, the first button gets activated instead.
I've used
