Egldevices: Use valid DRM handle to get platform display

Use a valid DRM handle as display attribute to get platform display.
This fix is used together with the default framebuffer fix for the
display issue of egldevices backend on Jetson AGX Orin devkit.

Pick-to: 6.6 6.5
Change-Id: Ia1975936653461c5a7e534c714a123837c62bc10
Reviewed-by: Samuli Piippo <samuli.piippo@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
index 9ada2de2b6..a213bc9bba 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
@@ -38,8 +38,11 @@ EGLDisplay QEglFSKmsEglDeviceIntegration::createDisplay(EGLNativeDisplayType nat
 
     EGLDisplay display;
 
+    EGLint egldevice_fd = device()->fd();
+
+    const EGLint attribs[] = { EGL_DRM_MASTER_FD_EXT, egldevice_fd, EGL_NONE };
     if (m_funcs->has_egl_platform_device) {
-        display = m_funcs->get_platform_display(EGL_PLATFORM_DEVICE_EXT, nativeDisplay, nullptr);
+        display = m_funcs->get_platform_display(EGL_PLATFORM_DEVICE_EXT, nativeDisplay, attribs);
     } else {
         qWarning("EGL_EXT_platform_device not available, falling back to legacy path!");
         display = eglGetDisplay(nativeDisplay);