topic Re: imx6q dual display LVDS +HDMI has problem ` in i.MX Processors

imx6q dual display LVDS +HDMI has problem `

mohsen2013 — Sun, 11 Jun 2017 04:07:02 GMT

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!!!

Re: imx6q dual display LVDS +HDMI has problem `

igorpadykov — Sun, 11 Jun 2017 23:12:56 GMT

Hi moh

this bsp is not supported by nxp, it is supported by community so

may be posted on meta-fsl-arm mailing list, so that someone familiar with it could try to assist you.
https://lists.yoctoproject.org/listinfo/meta-freescale
Alternatively one can try nxp releases described on

i.MX 6 / i.MX 7 Series Software and Development Tool|NXP

for example refer to attached Linux Guide, sect.sect.4.7 Running Linux OS on the target

Best regards
igor
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Re: imx6q dual display LVDS +HDMI has problem `

mohsen2013 — Sun, 18 Jun 2017 07:29:29 GMT

I used your suggested BSP but get the same error! do you have any suggestion?

Re: imx6q dual display LVDS +HDMI has problem `

igorpadykov — Sun, 18 Jun 2017 23:00:43 GMT

please try Demo files with i.MX6Q Sabre SD board

http://www.nxp.com/webapp/Download?colCode=L4.1.15_2.0.0_MX6QDLSOLO&appType=license&location=null&Parent_nodeId=13376994…