I.MX8MM Android Booting already, but the display is not shown.

[elim]

Hi communicators.

I porting finished of i.MX8MM (mini) B Type Board Android10.0.0(Q) Image.

And I booting the boot mode of Booting Switch

and the U-Boot prompt setting env to this:

setenv bootargs console=ttymxc1,115200 earlycon=ec_imx6q,0x30890000,115200 init=/init androidboot.console=ttymxc1 androidboot.hardware=freescale cma=800M@0x400M-0xb80M androidboot.primary_display=imx-drm firmware_class.path=/vendor/firmware transparent_hugepage=never androidboot.wificountrycode=CN androidboot.lcd_density=213

or

setenv bootargs console=ttymxc1,115200 earlycon=ec_imx6q,0x30890000,115200 init=/init androidboot.console=ttymxc1 androidboot.hardware=freescale cma=800M@0x400M-0xb80M androidboot.primary_display=imx-drm firmware_class.path=/vendor/firmware transparent_hugepage=never androidboot.wificountrycode=CN androidboot.lcd_density=213

and must: saveenv

this command is 

android_Q10.0.0_1.0.0_docs/Android_User's_Guide.pdf's one of them.

and I reboot the board

so, recently the Android OS booting

but the Display nothing show.

just void. nothing is shown.

and this my board putty terminal screenshot:

look at the red line, Android launcher is alive.

how can I to the display wake up?

Aha, The display I have is MX_8_DSI_OLED1 (DSI-MIPI)

thanx.

[elim]

but I had a flashed to through UUU.exe what a dtbo and vbmeta .img File

look at the Screenshot:

and I UUU.exe executed consult a manual guide:

My Computer CMD Screenshot:

and so on porting finish,

But the MIPI Display Not wake up After attaching the u-boot "setenv" and "saveenv"

[shivanipatel]

Hi elim@sstd.co.kr‌,

Which images you are using, Android 10.0.0.1.0.0 prebuilt images or Custom build images?

Please download the Android 10.0.0.1.0.0 prebuilt images from this link. As shown in the below screenshot.

In this folder, you will find the images for the MIPI panel display as shown in the below screenshot.

Now, to flash the images using the uuu script, you need to apply the proper option. Please follow Section 3.3 and Table 2. Options for uuu_imx_android_flash tool Flashing board images of Android_Quick_Start_Guide.pdf attached herewith.

To use the MIPI panel display, you can flash the images through uuu using a below-mentioned command. 

• sudo ./uuu_imx_android_flash.bat -f imx8mm -t sd -d mipi-panel (To flash images in SD Card)

There is no need to set the bootargs as well. 

I hope this will solve the problem.

Let us know if you are still facing any issues.

Regards,

Shivani

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[shivanipatel]

Hi elim@sstd.co.kr‌,

You have to use dtbo-imx8mm-mipi-panel.img and vbmeta-imx8mm-mipi-panel.img images to use the MIPI Panel Display.

I have checked the Android 10.0.0.1.0.0 prebuilt images and I am able to get the display.

Hope this will help you.

Let us know if you have any concerns.

Regards,

Shivani