Sleep and wakeup HDMI

Technical Support
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1

Hi folks,

I am using IMX8MP Verdin development board(5.4.161 BSP) with HDMI display.

In verdin development board Native and DSI-HDMI adapter available. How to sleep native HDMI, I have also referred below link.

https://community.toradex.com/t/apalis-imx8-control-of-idle-active-status-of-hdmi-display/15460/7

echo off > /sys/class/drm/card1-HDMI-A-1/status
echo on > /sys/class/drm/card1-HDMI-A-1/status

Using this command I think HDMI is enable/disable. Can you please clear more on this and how to sleep HDMI?

1 Like
2

Hi @kishan ,

Yes, these two commands is to enable/display HDMI output.
For sleep mode, you need to use weston.ini. More info refer here

3

Hi @sahil.tx,

using weston.ini i have configure idle-time.

but application is running on display and weston is going to sleep when idle-time is reached.

can you please suggest how to resolve this?

or

how to reset idle-time ?

4

Hi @kishan ,

Please clarify, do you want your application also to sleep when idle timeout is reached for the display?

5

Hi @sahil.tx,

Currently When an application is running still Weston is going to sleep. So, How to prevent Weston does not go into sleep mode while the application running on display.

6

@sahil.tx

can we reset idle-time form the client application?

7

Hi @kishan ,

Which OS you are using on your Verdin iMX8MP (Linux /Torizon?)
Basically you need to edit weston.ini file using file operation and reload weston services

8

hi @sahil.tx,

I am using Linux for Verdin iMX8MP.

9

Hi @kishan ,
Editing weston.ini file and reloading should do the needful