UDEV: Could not find DRM device!

[raviphulsundar]

I'm using Raspberry Pi3,

I'm trying to run Qt program with EGLFS platform, and getting following error.

$./Program -platform eglfs
qt.qpa.egldeviceintegration: EGL device integration plugin keys: ("eglfs_kms_egldevice","eglfs_kms","eglfs_X11")
qt.qpa.egldeviceintegration: EGL device integration plugin keys (sorted): ("eglfs_kms","eglfs_kms_egldevice","eglfs_X11")
qt.qpa.egldeviceintegration: Trying to load device EGL integration "eglfs_kms"
qt.qpa.egldeviceintegration: Using EGL device integrtion "eglfs_kms"
qt.qpa.input: udev device discovery for type QFlags(0x10)
qt.qpa.input: Found matching devices ()
qt.qpa.eglfs.kms: Found the following video devices ()
Could not find DRM device!
Aborted

There is no /dev/dri directory on traget neither /sys/class/drm
Is this pbm with udev or something else ?

[PhilE]

[ Moved to Graphics Programming, a more natural home ]

[ShiftPlusOne]

What operating system? Where did the Qt install come from? If you compiled it yourself, do you have the configure output?

If you're just using the version of Qt that's in Raspbian, I don't believe it has a pi-specific eglfs backend enabled.