qemu itself is not helpful when render nodes exist, but can't be opened:
qemu-system-x86_64: egl: render node init failed
To fix this, users likely need to
* modprobe vgem (presence when physical graphic card is absent or has a driver without
support for render nodes, such as many older cards found in server machines)
* add their user to "render" group to write to /dev/dri/renderD* (permissions)
With this change runqemu should print hints for the above as appropriate from probing the nodes.
(From OE-Core rev: 12ae43abbc4e7d6184198a912487ace3a4e66e50)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
(cherry picked from commit acd85925cb197b7a31a25b60e8de762e2c3697ef)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
099fdd3441