OK, to answer my own question, I found the problem soon after posting here (Murphy law in action).
For some reason I had a file ~/.config/retroarch/config/MAME 2003/MAME 2003.cfg that was overlapping the configs. Removed it and started to work.
I don't know WHAT created this file, but I will let the infromation here in case someone has the same problem.

@johne79 said in Boss Key:

EmulationStation takes over the ALT-F7 an

not really a solution, but an idea: take a screenshot of your desktop while doing actual work, and use that as an overlay you can toggle along with mute, via hotkey combo :)

edit: just had another thought: a script your could call with a hotkey that saves your game state and kills the emulator, starts up a work related app/project file, etc.

@colebeansbroskie

You should start by reading through these links.

https://retropie.org.uk/forum/topic/2859/how-to-use-mame-with-retropie-help-guide/34
https://retropie.org.uk/docs/Arcade/

@incrediblekyle second that, I cant get n64 to work yet, I need a working config file for the ds4 on the n64

@edmaul69 i got it

i removed the garbage lol
good tip

@briandamico i dont know the name of your controller but its config file will be located in /opt/retropie/configs/all/retroarch/autoconfig/ .

I can't seem to find any documentation regarding the flags. Which flags should one be using for video scrape?

Thanks

Thanks so much i figured it , cool thanks a lot dudleydes!

@Dair2BD said in Can't update setup script (Or download experimental emulators):

could not resolve host: gitbhub.com"

Is it really gitbhub.com or is it a typo? The correct should be github. Are you sure your pi is connected to the internet? That classical ping on google.com should be enough to ensure you're connected. ;-)

just reinstalled retropie... SOLVED!

Most adapters out there converts USB signals to HDMI (or other video format) signals to output video to monitor/TV. I have not known an adapter that converts HDMI signals to USB. If that can be done, you will also need a software in the tablet to interpret the USB signals back to video for the tablet to display. Also, said HDMI-to-USB adapter cannot be DRM compliant as it will be a means to pirate copyrighted video contents.

@wrusst i would try updating the setup now that you did that and try install all main packages

@edmaul69 Is there no fix?

@Capt_MorganCreek Hey!
Thank you very much for the file and the Help!
I had to change a little bit in the Script and use now uinput from uinput.
I ran into Problems with Dependencies... basically I haven't read thoroughly enough...
Everything else in the Script is the same.
Software works and the Buttons also... but! I have to make a new Plan on the Hardware itself.
It turned out that the Way I wantet to build the entire Thing does not work. It just does not fit...
Will have to see when I will have enough Time again to make a new Plan...

Big Thanks for the Help!

@incunabula i put all wads and pk3's into one folder. Then i have all seperate .sh files that load each game seperately. I keep all the wads in one folder so it makes it easy to make my .sh files. I can copy another one just making the minor adjustments to make the next games .sh

@budgingwhale922 Do you have a BIOS file?
The BIOS file is named SCPH1001.BIN

Place SCPH1001.BIN in (case sensitive)

/home/pi/RetroPie/BIOS

What region is the rom? Have you tried downloading a different rom in another format? (.bin + .cue) or .php?

Retropie PS1

Have you changed the default emulator via the runcommand?

Retropie runcommand

Running ROMs from a USB drive