@subs thanks a lots bro
it work great now
i take a tut from here
https://github.com/recalbox/recalbox-os/wiki/Connect-your-recalbox-to-a-DVI-screen-(EN)
no more violet line

then i wonder can you get rid of buzz sound / white noise (mostly in the menu)
when i put a headphone in. I can hear i really loud
and i already search the forum
there is no answer

thank you @ian57
really appreciate

thank you .
It work perfectly
really appreciate

one more thing
is it possible to get rid of pink line on the left?

thank you. i've done it
but it only fix the menu (emulation station)
but when i've try to play game
it's still the same

i just bought waveshare 5 inch lcd screen
http://www.waveshare.net/wiki/5inch_HDMI_LCD
it worked ok. response time is good
but it does not show full screen
I've tried overscan on/off in the menu

menu work nearly perfect but left the right side

in game it's shown top left of the screen

please advice

Thanks in advance

i used PS3 Bluetooth controller and map the button good
i don't know why i can't press Y to favourites my game.
nothing really happen when i press Y
sometime i keeps smashing X and Y
suddenly i could favourite my game?!
then i restart recalbox
i can't press Y again ???
wierd ! or it's just a bug
if anyone familar with this issues
please let's me know
Thanks in advance

PS. Sorry for my english

im excited !

first, i don't know why GPIO doesn't recognize hotkey
others button work perfect
anyways i found out that i have to use Select button as Hotkey button (Like Select+Start = quit)
then i've tried screech idea.
i hot wire select > quit button < start
the button act weird . it's seem that you can't do it that way
So. i think the best way is to do a python script as @subs said
but i have limited knowledge to understand complicated codes stuff
would you kindly tell me how to do it step-by-step
Thank You

@subs said in [GPIO] is it possible to map combination Hotkey button into single button?:

@screech well, that's risky, be cause other HK combos will never work. But could be done is SELECT is the HK and the QUIT button is wired to both SELECT and START.
And one more question : what is the RESET button supposed to do ? Reset the game or reset the pi ? If you want to reset the game, it's the HK+A combo

Again : scripting it would be a lot better, in my opinion

reset game . but still i just can't think of any other HK + button that more important
if so can you point me the the guide if i want to learn how to use python script
thank you

first of all sorry for my english
I'm building an arcade bartop with PI3 Recalbox
is it possible to map combination Hotkey button into single button? (mainly use for MAME , Neo-Geo)
i've read some others topics and i don't really understand much
im also a total noob for command line stuff
for example , my thought is
I'll drop P2 Select button (no need for P2 insert coins)
then i will have spare button for somthing else
here is the plans i made

is it possible ?
thanks in advance
i'm really appreciate