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imx6q dual display LVDS +HDMI has problem `

Question asked by mohsen zahraee on Jun 10, 2017
Latest reply on Jun 18, 2017 by igorpadykov

i use yocto morty with kernel 4.1.38-fslc+gee67fc7e072d  with kernel arguments:

setenv mmcargs "setenv bootargs console=${console},${baudrate} root=${mmcroot} video=mxcfb0:dev=ldb,disp,if=RGB24,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24 fbmem=48M lpj=30000"

 

I use Qt 5.6.2 and enable HDMI with echo 0 > /sys/class/graphics/fb2/blank

then export QT_QPA_EGLFS_FB="/dev/fb2"

and run my app with ./myApp -platform eglfs -style material

but i get error ( EGL Error : Could not create the egl surface: error = 0x3003)

if i use fbtest on hdmi (/dev/fb2) it will work okay!!! 

i dont know what is problem!

 

Note: if I enable LVDS and HDMI separately they work fine, but if I enable both of them simultaneously I will get this error!!!

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