How to set only the HDMI output on Android4.4.3

[yuuki]

Dear all,

We run Android4.4.3 on SABRE-SDB.
We use only the HDMI output as display.

In this case I think that we have to change attached files.
However, we do not understand how to describe the correct cord.

Is there the sample cord to describe it in these files?
If there are the contents which we should set other than these, would you teach it?

May I have advice?

Best Regards,
Yuuki Murasato

Original Attachment has been moved to: imx6qdl-sabresd.dtsi.txt.zip

Original Attachment has been moved to: imx6dl-sabresd-common.dtsi.txt.zip

Original Attachment has been moved to: imx6q-sabresd.dts.txt.zip

[yuuki]

Dear all,

Our system is a state of Dual Display now.
(HTML+Other displays)

We want to make only the HDMI output.
Would you teach the method to disable other displays?

Best Regards,
Yuuki

[SergioSolis]

You can disable all the other displays and leave HDMI on with these bootargs:

setenv bootargs console=ttymxc3,115200 androidboot.console=ttymxc3 consoleblank=0 vmalloc=400M init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off androidboot.hardware=freescale cma=384M

Please let me know if this is what you are looking for.

Have a great day,
Sergio

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[yuuki]

Dear Sergio-san,

Thank you for your support.

We want to implement these contents in a source code, not a Bootrolder command base.

Would you tell me the method to set video=mxcfb1-3 to OFF under a source code?

We think that we have to list these contents in DTS file.

We referred to the i.MX_6_BSP_Porting_Guide.pdf, but were not able to find the list method.

May I have advice?

Best Regards,

Yuuki

[aravinthkumarja]

Hi yuuki​

Inside device/fsl/sabresd_6dq/BoardConfig.mk

"BOARD_KERNEL_CMDLINE :"

You can implement the video bootargs in above macros.

Regards,

Aravinth