imx28 LCDIF DMA not running

[sylvainblaix]

I am running an iMX28 Linux (Freescale 2013). After blanking the screen (echo 1 > /sys/class/graphics/fb0/blank) and subsequently un-blanking (echo 0 > /sys/class/graphics/fb0/blank), I can no longer see any graphics applications.

When the failure happens, it appears that the LCDIF DMA controller is no longer executing in spite of the fact that it seems to be configured properly.

Can anyone tell me why the DMA controller is not running?

[igorpadykov]

Hi sylvainblaix

could you try Demo image from official product page

i.MX28 Linux Binary Demo Files (REV L2.6.35_1.1.0)

i.MX28 Evaluation Kit|NXP

Best regards

igor

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