[Interest] eglfs and libglvnd

Laszlo Agocs laszlo.agocs at qt.io
Tue Jun 13 22:06:29 CEST 2017


It is a bug in libglvnd. As a workaround try setting EGL_PLATFORM=0x31D7

Best regards,


From: Interest <interest-bounces+laszlo.agocs=qt.io at qt-project.org> on behalf of Johannes Pointner <h4nn35.work at gmail.com>
Sent: Tuesday, June 13, 2017 9:25:05 PM
To: interest at qt-project.org
Subject: [Interest] eglfs and libglvnd


I'm using on an i.MX6 Board archlinux ARM in combination with etnaviv,
mesa and eglfs (Qt5.8/Qt5.9). Which worked at the beginning but since
there was the addition of libglvnd I can't get it to work anymore.
I get following log:
qt.qpa.egldeviceintegration: EGL device integration plugin keys:
("eglfs_emu", "eglfs_kms_egldevice", "eglfs_kms", "eglfs_x11")
qt.qpa.egldeviceintegration: EGL device integration plugin keys
(sorted): ("eglfs_kms", "eglfs_emu", "eglfs_kms_egldevice",
qt.qpa.egldeviceintegration: Trying to load device EGL integration "eglfs_kms"
qt.qpa.eglfs.kms: New DRM/KMS via GBM integration created
qt.qpa.egldeviceintegration: Using EGL device integration "eglfs_kms"
qt.qpa.eglfs.kms: platformInit: Opening DRM device
qt.qpa.input: udev device discovery for type
qt.qpa.input: Found matching devices ("/dev/dri/card1", "/dev/dri/card0")
qt.qpa.eglfs.kms: Found the following video devices:
("/dev/dri/card1", "/dev/dri/card0")
qt.qpa.eglfs.kms: Using "/dev/dri/card1"
qt.qpa.eglfs.kms: Using backend-provided DRM device /dev/dri/card1
qt.qpa.eglfs.kms: Creating GBM device for file descriptor 5 obtained
from "/dev/dri/card1"
Could not open egl display
Aborted (core dumped)

Should eglfs work with libglvnd?
Is there something I missed?

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