Hoy me llevé una sorpresa extraña. Hice una reinstalación de Recalbox desde NOOBS. Yo tenía 4.0.2 y esperaba que reinstalara a la misma versión, pero me llevé la sorpresa de que la nueva versión que tengo es la 4.1
Mi pregunta es, esta versión 4.1 que instala NOOBS es la "unstable" o ya sería la versión final?
Eso significa que ya va a estar disponible la 4.1 final en cualquier momento?

Still haven't found a solution for this...
Anyone else has any idea?
I appreciate any help!

@substring It does, BUT when I do this step :

7. Edit "recovery.cmdline" in F:, add to the end of the line " dsi" , dont fortget the space-character, and save

Then it will work properly on HDMI when connected, PINN boots perfectly on HDMI, but then when Recalbox starts, the image is back on the LCD.

Then I do the next steps:

8. Go to F:\ and create a config.txt and add the line "ignore_lcd=1" and save

• when starting, the output will be forced onto hdmi with this command. PINN menu will only be visible on hdmi source now
• this is important, so the dsi display does not blink, while using hdmi

9. Mount sd card back into raspberry pi and start into rasbian.

10.Open terminal and go to /boot/

11. Create file "config.dsi" in /boot/ - this config will be loaded, when hdmi is not connected

• dsi display loads automatically and does not need any commands, so the config.dsi can be empty
• you can add later, what usually would go into config.txt to configure your dsi display

12. Create file "config.hdmi" in /boot/ - this config will be loaded, when hdmi is connected

• add line "ignore_lcd=1" to config.hdmi, this forces to ignore the dsi display

After that, it won't boot.

@substring I'm sad to report I couldn't get it to work
For some reason after doing everything described in the instructions, Recalbox won't even boot on a fresh install.

Alright, I was just thinking the same.
The PINN answer looks like a solid solution.
I will try it during the weekend and let you know how it went.
Thanks!

@substring Well I tried and I don't seem to find a complete answer...
I found this article on PINN. I'm not using it, but can this be "adapted" to use on Recalbox???
link text

Ok I confirm [EDID=*] doesn't work.
I hope I just got the syntax wrong, or there's something similar.

@substring That's not entirely crazy! I'll test that and see how it goes when I come back from work.
In the meantime, can you give me a link to the official Pi forum? Thanks!

I use the exact same one, works flawlessly!

@substring I think the answer is finding a way to have it detect HDMI and if detected run ignore_lcd=1 and if not detected, don't run it or change it to ignore_lcd=0

Well, I got it to work but only partially.
I added this to the config.txt:

[EDID=GSM-LG_TV]
ignore_lcd=1
hdmi_group=2
hdmi_mode=82
[all]

Now when the HDMI from my TV is connected before boot, it will detect and prefer HDMI and it works fine, and if HDMI is not plugged in, the LCD will come up as usual.

Problem is it only works with my TV... How do I make that work for example if I take it to a friends house?