Using 4k HDMI regression on BSP 4.14.78

[stéphanenoblet]

Dear,

I'm trying the new BSP imx_4.14.78_1.0.0_ga, and I have problem using 4k on HDMI.

With BSP 4.14.64 It was working fine with the kernel options : video=HDMI-A-1:3840x2160-32@25

With the new BSP It work with resolution 1920x1080 but not with resolution 3840x2160.

Is there a regression on this BSP ?

Stéphane

[joanxie]

what board do you use? do you use the demo image or customized image? if demo image, which image do you use?