Display issue on iMX53, WEC7 : Sometimes display not comes up, shows stripes

[KeshavaGN]

Hi all,

I'm working on WEC7 on freescale's iMX53 based custom board.

While booting, sometimes color stripes appears on my display in bootloader (I mean, just after I switch on the board), and this will continue to remain on display,

and hence i will not get WEC7 desktop.

This issue observed 2 or 3 times out of 10 power on/off cycles.

Anybody faced such issue?

Any pointer on where could be the issue?

Thanks.

With regards,

Keshava

[srirammadhu]

Hi keshav,

I'am facing a similar issue, whereas i get color patches after boot and white patches on display. But desktop loads properly on every power off & on cycles.

Can you please tell me how you solved it??

Thank you

Sriram

[justin_jiang]

What's the boot log? Can you see any errors in the boot log?

What's the PMIC are you using?

[KeshavaGN]

Hi JiangJustin,

Thanks for reply.

In boot log I'm not seeing any errors. Anyway, I will check this and confirm.

PMIC - I'm using DA9052.

Any ideas?

Thanks again.

Regards,

Keshava

[justin_jiang]

where did the boot stop? Can you attach the failed and normal boot log?

[KeshavaGN]

Hi JiangJustin ,

There is no difference in boot log. The board is booted completely. But LCD sometimes will show stripes in bootloader stage, and will continue and i will not see desktop.

This happens when i power on the board soon after i power off (ie: Fast power off-on cycle) sometimes. (2 to 3 out of 10)

Thanks.

With regards,

Keshava

[justin_jiang · Accepted solution]

It seems a hardware issue. Did the board shutdown all the power when power off?