When using OpenGL as the graphics API in a fullscreen QGuiApplication in Windows 11, the virtual keyboard does not appear when focusing a text input control.

Observed Behavior:

• The virtual keyboard is invisible, but it still receives touch events.

• Touching the screen in the lower half (where the keyboard would normally appear) triggers key input, indicating that the keyboard is active but not rendered.

Expected Behavior:
The virtual keyboard should be visible and usable when a text input control gains focus, even in fullscreen OpenGL mode.

This seems to only happen on NVIDIA graphics cards and not on AMD ones.

Testproject: [^TestProject.zip] [^TestProject.zip]

• Run test application
• Press F11 to make application fullscreen
• Touch text field with touch input (by using a touch screen)
• Keyboard is not shown