imx8mmini qt application interface displays background color when refreshed

[sunpei1992]

CPU Model:MIMX8MM6CVTKZAA

linux kernel:4.19.35

Qt version:5.12.3

compiler version：aarch64-poky-linux-gcc 8.3.0

When the client application runs on the weston desktop, a weston desktop background color is displayed and instantly restored，Is there any way to solve this problem please？

[Chavira · Accepted solution]

HI @sunpei1992 !

Thank you for contacting NXP Support!

That Kernel is too old, probably that problem was solved in a new kernel version, please try to update your board and run your application again.

Best Regards!

Chavira