RasPi only boots correct when HDMI is plugged in

[hansandreasr]

It seems that this was an issue some time ago, since most posts about this issue are 5+ years old, but i am encountering now and the given solution to it back in the day don't work for me.

here is what is going on:

i want to let the pi run without a screen connected, but when i boot the pi nothing happens.
when i boot the pi connected to a screen via the hdmi port everything goes as normal,
i can disconnect the hdmi cable at that point and it keeps running as it should.
even the screen has not to be turned on and the pi will boot as it should!
but when there is nothing plugged in, nothing happens.


i'm using a raspberry pi 3B+ & rasbian buster (the version of june 2019)

[aBUGSworstnightmare]

Add below to config.txt

Code: Select all

  hdmi_force_hotplug 

all details here https://www.raspberrypi.org/documentati ... t/video.md

[hansandreasr]

it is already in the config folder as

hdmi_force_hotplug = 1

[hansandreasr]

is it an idea to copy paste the full config.txt in here?

[hansandreasr]

any engineer that can help me out?

thank you in advance!

[Burngate]

it is already in the config folder as

hdmi_force_hotplug = 1

Is it

Code: Select all

#hdmi_force_hotplug=1

or

Code: Select all

hdmi_force_hotplug=1

Removing the # makes it live

[DougieLawson]

it is already in the config folder as

Code: Select all

hdmi_force_hotplug = 1

Remove the spaces

Code: Select all

hdmi_force_hotplug=1

[hansandreasr]

it is already in the config folder as

hdmi_force_hotplug = 1

Is it

Code: Select all

#hdmi_force_hotplug=1

or

Code: Select all

hdmi_force_hotplug=1

Removing the # makes it live

AHA!
this worked!

thx @Burngate !

and

does that mean that removing the "#" always makes the command live in the coinfig folder?
i thought i had to change that number "hdmi_force_hotplug=1" to "hdmi_force_hotplug=0"
to turn it off....
everything starts with the # so i thought that was just code or something...

[hansandreasr]

it is already in the config folder as

Code: Select all

hdmi_force_hotplug = 1

Remove the spaces

Code: Select all

hdmi_force_hotplug=1

it was in the config without space, i just added them while typing it here...
my bad, but thanks anyway for the help @DougieLawson !

[Burngate]

does that mean that removing the "#" always makes the command live in the coinfig folder?

Yes - the "#" is just their way of marking something as a remark rather than code.
Other places, other methods - you're probably too young to remember BBC BASIC's "REM"

It's just assumed you already know this, like knowing which side of the plane the pilot sits on (helicopters tend to be opposite to fixed-wing planes, for no discernable reason)