Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A20 => Topic started by: rumco on March 27, 2023, 08:11:20 PM

Title: display on hdmi only if screen is connected from the time of booting
Post by: rumco on March 27, 2023, 08:11:20 PM
My board serves as a file-server.  Normally there is no display connected. I have access via putty over the network. I only want to connect a screen via hdmi directly if there are problems with the network. But then I have a black screen. I only get a display if the screen is connected from the boot. Can I change this so that I get a display when I connect the screen at any point on the fly?
Title: Re: display on hdmi only if screen is connected from the time of booting
Post by: LubOlimex on March 29, 2023, 10:30:49 AM
I think LCD script bugs the HDMI hotplug. Try the following:

1. Execute the "olinuxino-display" script in the command line interface and set to "DISABLE" option at the bottom, reboot, and test a few times if the HDMI now works as you want.

If the issue remains:

2. Run again "olinuxino-display" script  in the command line interface and set to "Auto detection (without TS)" option, reboot, and test a few times if the HDMI now works as you want.

Let us know how it goes.
Title: Re: display on hdmi only if screen is connected from the time of booting
Post by: rumco on March 29, 2023, 02:45:29 PM
Following the first hint with the script and "DISALBE" option has already brought success. The display now works, no matter when I connect the monitor.
Many thanks!!