Linux IMX53 - Console / screen blanking...

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Linux IMX53 - Console / screen blanking...

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MichaelGale
Contributor II

Does anyone know how to disable the console / screen blanking on this platform? Every ten minutes, the screen just turns off and the frame-buffer gets cleared. I do not have the "setterm" command available in the BSP.

I do not know how to add "CONSOLEBLANK=0" to the boot parameters. Does anyone know if this will work? Which u-boot header file should be edited?

Thanks,

Michael

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4 Replies

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sidebranch
Contributor II

The second one works for me and disables blanking permanently (AFAICR).

However, you need to be root (sudo -s) before you run it.

Leon.

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MichaelGale
Contributor II

Thanks Leon! Just a note for anyone else, the first option works but the second does not.

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sidebranch
Contributor II

once:
echo -e -n '\033[9]' > /dev/tty0

forever:

echo 0 > /sys/class/graphics/fb0/blank

Regards,

Leon.

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harryflink
Contributor II

The "echo 0 > /sys/class/graphics/fb0/blank" tricked worked for iMX28 CPU project too to avoid screen blanking every 10 minutes.

Thank you for the solution, Leon!

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