How can I change the resolution of HDMI in the I.MX8M EVK Board?

[zhangweikanghus]

Hi expert

    I have download the latest linux bsp L4.14.78_1.0.0_ga_images_MX8MQEVK to my I.MX8M EVK board, it works well at 1280*720 HDMI resolution . And, Can you tell me how I can change the hdmi resolution to 1920*1080 mode?

U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g654088c (Nov 28 2018 - 18:18:52 +0000)

CPU: Freescale i.MX8MQ rev2.0 1500 MHz (running at 1000 MHz)
CPU: Commercial temperature grade (0C to 95C) at 53C
Reset cause: POR
Model: Freescale i.MX8MQ EVK
DRAM: 3 GiB
TCPC: Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C0 0x50]
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
No panel detected: default to HDMI
Display: HDMI (1280x720)
In: serial
Out: serial
Err: serial

BuildInfo:
- ATF d6451cc
- U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g654088c

[igorpadykov · Accepted solution]

Hi weikang

one can change kernel boot parameter video=HDMI-A-1:.. as in examples

https://community.nxp.com/message/987572?commentID=987572#comment-987572 

Linux Kernel - i.MX8 - Boundary Devices 

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

[zhangweikanghus]

Thank you,I follow your answer and it works well.