Bug 498784

Summary: Game Controller not responding to joystick axes
Product: [Applications] systemsettings Reporter: Alan Prescott <alanjprescott>
Component: kcm_joystickAssignee: Plasma Bugs List <plasma-bugs-null>
Status: REPORTED ---    
Severity: normal CC: duha.bugs, josh, jpwhiting, nate
Priority: NOR    
Version First Reported In: 6.3.0   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Alan Prescott 2025-01-17 09:13:00 UTC 
I'm running Plasma 6.3 as KDE Neon Testing in a VirtualBox VM

This is a follow up to an original bug (484046) reported as fixed for plasma 6.3

Joystick model: Logitech Extreme 3D Pro

In System Settings -> Game Controller

Joystick is correctly shown as /dev/input/event7

All 12 buttons respond OK with PRESSED

Axes 1 (X), 2(Y) seem to be confused but difficult to check owing to sensitivity of movement between X, Y axes
Axis 3 (Rotate) seems to be OK for range
Axis 4 (Throttle) appears to be OK for range
Axes 5 and 6 (HAT) appear to be OK for range and show a value of 0

There is no way to calibrate the axes

There is no movement of the cursor in the Position graphic

I'm not sure that this is a KDE problem as jstest reports a problem ..

$ jstest /dev/input/event7
Driver version is 0.8.0
jstest is not fully compatible with your kernel, Unable to retrieve button map!
Joystick (Unknown) has 2 axes and 2 buttons.
Testing ... (interrupt to exit)

jstest: error reading: Invalid argument

However ...

$ evdev-joystick -s /dev/input/event7
Supported Absolute axes:
  Absolute axis 0x00 (0) (X Axis) (value: 468, min: 0, max: 1023, flatness: 63 (=6.16%), fuzz: 3)
  Absolute axis 0x01 (1) (Y Axis) (value: 481, min: 0, max: 1023, flatness: 63 (=6.16%), fuzz: 3)
  Absolute axis 0x05 (5) (Z Rate Axis) (value: 134, min: 0, max: 255, flatness: 15 (=5.88%), fuzz: 0)
  Absolute axis 0x06 (6) (Throttle) (value: 255, min: 0, max: 255, flatness: 15 (=5.88%), fuzz: 0)
  Absolute axis 0x10 (16) (Hat zero, x axis) (value: 0, min: -1, max: 1, flatness: 0 (=0.00%), fuzz: 0)
  Absolute axis 0x11 (17) (Hat zero, y axis) (value: 0, min: -1, max: 1, flatness: 0 (=0.00%), fuzz: 0)


Operating System: KDE neon Testing Edition
KDE Plasma Version: 6.2.90
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.1
Kernel Version: 6.8.0-51-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 7 6800H with Radeon Graphics
Memory: 7.7 GiB of RAM
Graphics Processor: llvmpipe
Manufacturer: innotek GmbH
Product Name: VirtualBox
System Version: 1.2