Wayland dont lock mouse

[Caua726]

Quick summary

When try to use mouse as gamepad, on wayland only the mouse are not locked on the screen, but if try to use
env QT_QPA_PLATFORM=xcb rpcs3
works perfectly

Details

In Wayland, the mouse does not lock to the application window, causing the cursor to move outside the RPCS3 screen during gameplay. This behavior disrupts games that rely on mouse input.

Workaround:
Running RPCS3 with env QT_QPA_PLATFORM=xcb rpcs3 works as expected, indicating the issue is specific to Wayland's handling of input locking.

Attach a log file

RPCS3.log.gz
RPCS3.log

Attach capture files for visual issues

No response

System configuration

OS: Arch
WM: KWin (Wayland)
DE: KDE Plasma 6
CPU: Ryzen 5 5600X (Single Channel)
GPU: RX 560
RAM: 8GB DDR4
Vulkan: 1.3.289 - RADV [Mesa 24.2.7-arch1.1]

Other details

No response

[layercak3]

Qt probably needs an API that better matches how pointer locking is supposed to be done on Wayland. You can't do it by repeatedly warping the cursor on the global coordinate space with QCursor::setPos. https://bugreports.qt.io/browse/QTBUG-116493
RPCS3 could probably do something with QNativeInterface to bypass Qt limitations.