i.MX ProcessorsのトピックRe: IMX6QP Sabre Auto 1920x720 Resolution Problem

IMX6QP Sabre Auto 1920x720 Resolution Problem

abdullahaktay — Wed, 21 Jun 2017 16:09:30 GMT

I compile a special kernel supported by yocto for imx6qp. 1920x720 resolution is not defined in this kernel system. The supported resolution values are the below.

U:1280x720p-120 U:1280x720p-100 
U:1920x1080p-30 U:1920x1080p-25 U:1920x1080p-24 U:1920x1080p-50  U:1440x576p-50 U:1440x576p-50 U:1440x288p-50 U:1440x288p-50  U:1280x720p-50 U:720x576p-50 U:720x576p-50 U:1920x1080p-60  U:1440x480p-60 U:1440x480p-60 U:1440x240p-60 U:1440x240p-60  U:1280x720p-60 U:720x480p-60 U:720x480p-60 U:640x480p-60

U-boot parameter:

setenv my_bootargs_sata setenv bootargs console=\${console},\${baudrate} root=/dev/sda2 video=mxcfb0:dev=hdmi,1920x720M@60,if=RGB24

Since the 1920x720 resolution value is not included here, it takes into consideration the nearest value of 1920x1080.

How do I compile a kernel with custom resolution? (1920x720)

Display info : CDTech - 12.3” LCD S123AWU01ES

Thanks.

Re: IMX6QP Sabre Auto 1920x720 Resolution Problem

igorpadykov — Wed, 21 Jun 2017 23:08:45 GMT

Hi Abdullah

please refer to some examples for changing lcd resolution on:

https://community.freescale.com/thread/373763

Display Output, Resolution and Timings (Linux)

Best regards
igor
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Re: IMX6QP Sabre Auto 1920x720 Resolution Problem

abdullahaktay — Thu, 22 Jun 2017 05:58:14 GMT

Thank you for your reply. I can not find a file path similar to these.

kernel_imx/arch/arm/boot/dts/imx6qdl_sabresd.dtsi
arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi

Where can I find?

release: morty

machine: imx6qpsabeauto

distro: fslc-framebuffer

Thanks.

Re: IMX6QP Sabre Auto 1920x720 Resolution Problem

igorpadykov — Thu, 22 Jun 2017 10:48:51 GMT

please check

dts\boot\arm\arch - linux-toradex.git - Linux kernel for Apalis and Colibri modules