lcd display output is white for every 10mints

[ask]

Hi all,

I am using imx287 processor based board for one of my Infotainment project. Interfaced tm035kdh04 panel to the board. Using third party graphic library, I am able to display the images on display.  I am facing the below issue with the display,Please can any one suggest how to fix this issue.

The display becomes white for every 10 mints. If I touch the keypad present on the board, screen becomes normal.

[PeterChan]

Hi ashok,

The solution in this post https://community.freescale.com/thread/323250 may also help you as well.

[ask]

Thanks for you quick reply.

I tried by disabling the config_vt_console option in the kenel, and verified display is not going blank for every 10 minutes.

Please can you clarify on below two things.

if the config_vt_console disabled, will it affect any other functionality of the peripheral of a board?

Instead of disabling the config_vt_console, can we handle this as part of panel driver?

[PeterChan · Accepted solution]

Disabling CONFIG_VT_CONSOLE will not affect other peripheral functionality.

Instead of Disabling CONFIG_VT_CONSOLE, you can set "consoleblank=0" at kernel command line to disable VT auto blank feature. See https://community.freescale.com/docs/DOC-100108

[ask]

Thanks for your reply.

I already verfied this option(consoleblank=0) also. Either way it is working fine.

[igorpadykov]

Hi ashok

How do I prevent the LCD from turning off after 20 min ?

also one can try this command for turning off the FB blanking

   echo -e "\033[9;0]" > /dev/tty0

If you have screensaver, sometimes screensaver shuts down the LCD.

Best regards

igor

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