Can not setup dual dispay in mirror mode on LCD and HDMI using Colibri iMX6

Hi,

I have IMX6 Colibri dual core module, 7 inch LCD and HDMI monitor connected to the module.
I need to get working desktop on the LCD display and HDMI monitor in mirror mode.

I have made next setup enviropment:

setenv vidargs 'mxc_hdmi.only_cea=1 video=mxcfb1:video=dev=hdmi,800x480M@60,if=RGB24 video=mxcfb0:dev=lcd,800x480@60,if=RGB666 fbmem=32M’

after boot I see desktop only on TFT dispalay, HDMI monitor with signal, but black.

I am using command xrandr for get information about connacted monitors and I would like to use xrander for configure displays in mirror mode, but of list of available monitors I see only one:

Screen 0: minimum 240 x 240, current 800 x 480, maximum 8192 x 8192
DISP3 BG connected 800x480+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
U:800x480p-60 59.99
+
*

after setup enviropment with disable lcd display:

setenv vidargs 'mxc_hdmi.only_cea=1 video=mxcfb1:video=dev=hdmi,800x480M@60,if=RGB24 video=mxcfb0:off fbmem=32M’

I see desktop on the hdmi monitor, and after command xrandr, I see next

Screen 0: minimum 240 x 240, current 640 x 480, maximum 8192 x 8192
DISP3 BG - DI1 connected 640x480+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
V:640x480p-60 60.00
+
*

Why I can not see in list both monitors? What I should to do for get mirror mode for lcd and hdmi?

I am using original kernel in the module:

The Angstrom Distribution colibri-imx6 ttymxc0
Angstrom v2014.12 - Kernel 3.10.17
Colibri_iMX6_LinuxImageV2.4_20150518

Hope, someone can help me, thanks.

Regards, Yuriy.

Why I can not see in list both monitors? What I should to do for get mirror mode for lcd and hdmi?

Such a mirror mode is simply not supported by NXP’s (formerly Freescale’s) resp. Vivante’s X driver, sorry.

I am using original kernel in the module:
The Angstrom Distribution colibri-imx6 ttymxc0 Angstrom v2014.12 - Kernel 3.10.17 Colibri_iMX6_LinuxImageV2.4_20150518

Please note that the V2.4 (and the V2.5 for that matter) beta versions are no longer supported. Please update to our latest stable V2.6 or the latest beta V2.7 beta 1 at your earliest convenience.

So, as I understand I can not get mirror mode using the Colibri IMX6 module even with updated kernel to 2.6 or 2.7 version, right? I have my program based on GStreamer which capture analog video camera with preview, can I show the prewiev on another monitor or it is not possible showing any video on both displays at same time with the IMX6 Colibri module ?
Thanks.