HDMI + LVDS Dual Display - Segmentation fault - Please help

[ankitdaf]

I have an HDMI Display and an LVDS display connected to my i.MX6 board.

/dev/fb2 is the LVDS screen framebuffer and

/dev/fb0 is the HDMI screen framebuffer

I can drive both screens using gst-launch.

I need these screens to be available as DISPLAY variables in my X session.

I tried to map the frame buffers to a screen by using the attached xorg.conf file.

However, this results in a segmentation fault, attached is the Xorg.0.log  file.

Can someone please tell me what I might be doing wrong ?

Thanks !

Ankit

Original Attachment has been moved to: Xorg.0.log.zip

Original Attachment has been moved to: xorg.conf.zip

[BiyongSUN]

i.MX Linux User's Guide , Rev L3.10.53_1.1.0-ga, 01/2015

Specifying Displays

Display information can be specified on the Linux boot command line. It is not dependant on the source of the Linux image.

If nothing is specified for the display, the settings in the device tree will be used. Add ${displayinfo} to the environment

macro containing bootargs. The specific parameters can be found in the i.MX Linux Release Notes. Below are some

examples of what these might look like.

• U-Boot > setenv displayinfo 'video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24' for an HDMI

display

• U-Boot > setenv displayinfo 'video=mxcfb1:dev=ldb video=mxcfb0:dev=hdmi,

1920x1080M@60,if=RGB24' for LVDS and HDMI dual displays

• U-Boot > setenv displayinfo 'video=mxcfb0:dev=lcd,if=RGB565' for an LCD

• U-Boot > setenv displayinfo 'video=mxcepdcfb:E060SCM,bpp=16

max17135:pass=2,vcom=-2030000' for an EPDC connection

• U-Boot > setenv displayinfo 'video=mxcfb0:mxcfb0:dev=lcd,if=RGB565

video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24' for LCD and HDMI dual displays

[weidong_sun]

Hello Ankit,

    Linux BSP doesn't support dual display based on X11 by default, if you want to use dual display, you can use wayland-weston , please refer to the link :

i.mx6q Enable Dual Display of Ubuntu

Regards,

Weidong