@rulfen First, a riddle.

What's black and blue, yet hardly ever read?

Hint: ˙ǝƃɐd ʎɹǝʌ sᴉɥʇ ɟo doʇ ǝɥʇ ʇɐ s,ʇI

[Riddle's credit goes to @mediamogul .]

We need more info about your setup to try to help you.

Fixed with last commit update to SDLPoP
https://github.com/NagyD/SDLPoP/pull/141

@frobi

Topic moved to 'Help and Support'

Have you tried any other controllers? Also, more information on your setup and usage would help. The necessary information is found at:
https://retropie.org.uk/forum/topic/3/read-this-first

Glad to see this one was answered, my next build is going to be a palmtop, with emphasis on the Desktop and games secondary, so just using a mini keyboard.

Hello,
couple of weeks passed and things happened.
First, it turned out that the autoconfig files in the retroarch-joypads directory contain different values than the jstest tool prints. This is pretty confusing to me but when I executed the builtin joy configuration tool of retroarch, it created the file with different values for the two gamepads. And the buttons works with those 'different' values. So much for jstest. (I guess libretro doesn't use SDL2, but EmulationStation). Interestingly the scancodes of the joys are the same for jstest, but different for the retroArch config...

Secondly I visited the irc channel of retroArch and there I was told that the joys/gamepads are recognized by their name, vendorID and productID (bluetooth address doesn't play any role in this procedure - which is again surprising for me). These values are the same for my pads, so only one option is left for me: forget about autoconfiguration and configure the pads manually.
Now in my retroarch.cfg file I

turned off autoconfiguration (input_autodetect_enable), so upon lr- game start the joy config files are not re-loaded configured the scancodes of the buttons/Dpads/axis in the retroarch.cfg file for both joysticks..

Now I can play Super Bomberman 3 happily with my kids in two player mode...

Thanks for reading!

@heinstein also, if you fix the first file you listed you wont have to configure any more configs

Also see https://retropie.org.uk/forum/topic/2861/guide-advanced-controller-mappings

Hello,
pifba is the only emulator works with start+select to exit.

Here is my joypads retroarch config:
http://pastebin.com/1w26jZ4g

It seems that indeed, the configuration itself was the problem.
When I reconfigured the controls in the libretro GUI menu, it overwrote the /opt/retropie/configs/all/retroarch-joypads/xxxx.cfg files with some new values - different ones that jstest prints.
I had to edit the files for the special commands, like 'exit emulator', 'save', 'load', but basically it works now properly.
Interestingly the emualtionstation works as if nothing had been changed.
And nes, snes, psx games also understand now the key presses on my noname gamepads.
BTW: They are Terios T3, bluetooth stuff.

thanks. is there a guide on how to edit the .cfg file ?

Thank you very much @herb_fargus , could you speak a little bit about the option or about the new wiki article in a short blog post? When I searched PSP as a gamepad RetroPie I allways saw only pages about the PSP emulators, there is also a Wi-Fi gamepad homebrew app but I only saw it working for Windoes, it is called wificontroller, it is a Linux one but you need a script on Linux, could you check if you can add it to a RetroPie setup option along with the option to start ot at boot? You only need to search psp wireless gamepad linux at google

@jotinkarter I did! I got a rock candy wireless 2.4 Mhz controller and it works like a charm

@spruce_m00se for using tons of db9 controllers i recommend either a vision-daptor or ultimate pc interface (upci is 2player version. Has some other controllers the vision-adapter doesnt have. Both made by the same person.) The master system also has the two extra pins as functiong buttons. They match the same button numbers as start and mode button on the genesis mode. He added these so i could use my db9 modified nes and turbografx/pc engine controllers. He makes some other controller adapters too. His adapters truly are the best i have ever used.

@kkostis said in Gamepad and Light bolt problem (Rpi3):

May some updates caused that problem?

Sometimes it can happen that a system update will tip you over the edge of what a power supply can handle. If that is in fact the case here, then you were probably at the borderline all along.

Nice that you solved it. Next time, check this first:
https://retropie.org.uk/forum/topic/3/read-this-first

I paired the original 1st gen Fire TV game controller and I was surprised it worked so good.