IMX6DL: On resume from suspend display fickering issue

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IMX6DL: On resume from suspend display fickering issue

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amitfsl0
Contributor I

Android: 5.0

Linux  Kernel version: 3.10.53

Problem Description:

Able to successfully suspend the custom board based on imx6dl part.

On resume the the display flickers for few seconds and than stabilizes.

After stable display random flicker of very short duration observed.

IPU warning logs:

IPU_INT_STAT_10 = 0x00100000-> (sync lost)

Please reply if anyone has faced the similar issue.

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1 Reply

351 Views
igorpadykov
NXP Employee
NXP Employee

Hi amit

when the system is running out of memory bandwidth one can start

experimenting problems with the display which gives the warning message

imx-ipuv3 imx-ipuv3.0: IPU Warning - IPU_INT_STAT_10 = 0x00100000.

This means a synchronous display error interrupt, as a result of an error during

access to a synchronous display. one solution to this issue is

reducing the display resolution, framerate, frame buffer bits

per pixel or any other measure that helps to reduce the memory bandwidth utilization.

https://developer.ridgerun.com/wiki/index.php?title=IMX6_Memory_Bandwidth_usage

Best regards

igor

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