Display resolution changed in IMX8QM-MEK

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Display resolution changed in IMX8QM-MEK

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vinothkumars
Senior Contributor IV

Dear NXP,

I am using IMX8QM-MEK with Android 9 Automotive.

I connected new display with PC is working fine with proper resolution. But, the resolution got changed and touch also not working when I connected with MEK board.

 

What could be the reason and how to configure for all display resolution ?

 

I need some expert help,

 

Thanks & Regards,

Regards,
Vinothkumar Sekar
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igorpadykov
NXP Employee
NXP Employee

Hi Vinoth

 

it depends on LCD connection, for example for dsi one can look at imx8qm-mek-dsi-rm67191.dts:

https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/boot/dts/freescale/imx8qm-mek-d...

and its driver 

https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/gpu/drm/panel/panel-raydium-rm6719...

Perform specific for that lcd initialization:  struct cmd_set_entry manufacturer_cmd_set[] ,

adjust timings in  struct "drm_display_mode default_mode"

 

Best regards
igor

 

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