Emulator

Game Name?

Any

What's the problem? Describe what went wrong.

Trying to map the left or right stick from a classic controller (pro) connected to a wiimote as an emulated controller doesn't work, dolphin doesn't read the values correctly. The same controller works through bluetooth passthrough however.

What steps will reproduce the problem?

Connect a Wiimote with a classic controller pro plugged in following the instructions here: https://dolphin-emu.org/blog/2020/04/05/dolphin-progress-report-february-2020/#50-11684-add-support-for-wii-remotes-over-inputcommon-by-billiard ; then open any input configuration dialog (for example, standard gamecube controller) and select device Bluetooth/#/Wii Remote. When attempting to map a stick directly by left clicking an input button and moving the stick in any direction, it does nothing (eventually it times out). Opening the menu for any input item with right click and scrolling down to the classic controller section reveals that dolphin isn't reading the inputs correctly: axis values under a certain unknown threshold display inf or 0 and values over that unknown value display nan. I have attached screenshots and a video demonstration.

Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.

Yes (Dolphin 5.0-12015; Revision: 1bedbdf3c07999f8a9fb88f64e19107e6f59b3b7).

Is the issue present in the latest stable version?

N/A

If the issue isn't present in the latest stable version, which is the first broken version? (You can find the first broken version by bisecting. Windows users can use the tool https://forums.dolphin-emu.org/Thread-green-notice-development-thread-unofficial-dolphin-bisection-tool-for-finding-broken-builds and anyone who is building Dolphin on their own can use git bisect.)

The issue is present in the first version which introduces the wiimote over InputCommon feature (5.0-11684, revision 2b6a1ee4d87a80418ade913e15745d78309f7f67).

What are your PC specifications? (CPU, GPU, Operating System, more)

CPU: Intel i3-6100
GPU: NVIDIA GeForce GTX 1050
OS: Fedora 31 (Workstation Edition) x86_64 (Linux 5.6.7)

Is there anything else that can help developers narrow down the issue? (e.g. logs, screenshots,
configuration files, savefiles, savestates)

Sticks in neutral position:

Moving sticks in a clockwise motion (first left stick, then right stick):

Using xwiishow to show input values outside of dolphin shows that the sticks do work as intended, however there's a calibration issue with the left stick (when left neutral it produces a significant input in the Y+ direction), which is probably not the source of the issue. This behaviour is also shown by using the device through bluetooth passthrough in dolphin.