LVDS and HDMI simultaneous output

Technical Support
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1

Hi,
I am having a hard time setting both LVDS and HDMI outputs simultaneously on my Ixora board.

I followed instructions on the site and set vidargs as follows:

vidargs=‘mxc_hdmi.only_cea=1 video=mxcfb2:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb0:dev=ldb,800x600M@60,if=RGB666 ldb=sin0 fbmem=32M’

Board boots up correctly and displays boot and GUI on LVDS, but there is nothing shown on HDMI.

I tested fb2 using: cat/dev/urandom > /dev/fb2 and it shows that fb2 is working correctly.

How can I display the content of FB0 on FB2 at the same time?
Is dual display supported at all on Ixora?

Best Regards,
MoZa

2

What exact software versions of things are you talking about?

Please note that e.g. Vivante’s downstream X driver does not support multiple display outputs. However, one could e.g. run X on one display and play video or display a simple framebuffer UI on the other display.