lr-fba uses hotkeys in the same way as all the other retroarch based libretro cores.

Please see this video on how to use hotkeys.
(I wouldnt recommend editing the main retroarch.cfg at all to be honest)

And for the new paths in RetroPie 3

If you watch those 2 videos, you’ll know just as much as me on the subject (which isnt that much! :) )

There are no hotkeys in pifba – that is for lr-fba only.

In pifba here are the graphic options:
[Graphics]
DisplaySmoothStretch=1
# Display Effect: 0 none, 1 scanlines
DisplayEffect=0
DisplayBorder=0
MaintainAspectRatio=1

The readme file is here:
http://sourceforge.net/projects/pifba/files/

DisplaySmoothStretch - Disable anti-aliasing smoothing.
DisplayEffect - Postprocessing scanline filter.  For the scanlines filter it is recommended you switch off "DisplaySmoothStretch".
DisplayAutoRotate - For vertical games auto rotate the display.
MaintainAspectRatio - Keep the original game display ratio or fill the screen.

The link in the previous post shows the locations for the config files.

Then if you use lr-fba you can access the RGUI when the game is running.
Press your hotkey and F1 to bring it up. Or just F1 if no hotkey is set.

You can edit your controller config to enable a hotkey by adding a line like this:
input_enable_hotkey_btn = "x"
Just put the number corresponding to the button you want to use in place of the x.

Then, for setting the Save State and Load State buttons, use this:

input_save_state_btn = "y"
input_load_state_btn = "z"

Again, just replace the y and z with the number of the button you want to assign.

I was able to use that to set up my controller without needing to disable all hotkeys first.

[quote=98250]Hello, this topic is very great thanks to patrickm!
I’m a noob here so can you explain how we enter the RGUI (retroarch menu ?).

I think the keyboard shortcut is not activate in the last retropie version. Do we have to uncommment something somewhere or add a line in a cfg file?

[/quote]

Press F1.
If you have a button set to enable hotkeys (like Select), hold that then press F1. (or x on the joypad).

Right – well after 20mins of looking I cant find anything in libretro that will auto flip screen when a player dies. Just a manual method using the RGUI.
Which would mean using the hotkeys to bring up the menu, rotate it, then close menu, about 4 button presses I guess.

Maybe the guys on the libretro forums have more info.

The video above shows you where the controller files are held.

/opt/retropie/emulators/retroarch/configs/

Go there to find the one for your PS3 controller – they are named fairly well. Then change the value for your hotkey enable button.

Just say if anything in the video isn’t clear.

If you want, you can delete the pre-made files and run the retropie setup script to re-register your controller.

[quote=97830]Hello!
I am new to Retropie so all this is alien for me.
My problem is that i cant change my resolution for my snes games i have an 720p widescreen computer monitor.

I have tried to push down X at start up when i load games.
“1 Select default video mode for emulator/port”
I have tried to change to almost every DTM-xx whit 4:3 ratio.
Also the ntcs and pal 4:3 options at the bottom.

/opt/RetroPie/configs/all/retroarch.cfg
I have changed to this

video_aspect_ratio = 1.33
#1.333333 (4:3) Traditional SDTV
#1.56 (14:9) 4:3/16:9 Compromise aspect ratio
#1.6667 (5:3 Super 16mm)
#1.77 (16:9) HDTV US standard 
#1.78 (16:9) HDTV US standard alternate
#1.6 (16:10) Common computer screen ratio
#1.6667 (5:3) Common European widescreen standard
#1.85 Common US widescreen cinema
#2.39 Current widescreen cinema alternate
#2.40 Current widescreen cinema alternate

And the /opt/retropie/configs/snes

# All settings made here will override the global settings for the current emulator core

video_shader = /opt/retropie/emulators/retroarch/shader/snes_phosphor.glslp
video_shader_enable = false
video_smooth = false
video_aspect_ratio = 1.33
#1.333333 (4:3) Traditional SDTV
#1.56 (14:9) 4:3/16:9 Compromise aspect ratio
#1.6667 (5:3 Super 16mm)
#1.77 (16:9) HDTV US standard 
#1.78 (16:9) HDTV US standard alternate
#1.6 (16:10) Common computer screen ratio
#1.6667 (5:3) Common European widescreen standard
#1.85 Common US widescreen cinema
#2.39 Current widescreen cinema alternate
#2.40 Current widescreen cinema alternate
input_enable_hotkey = nul
aspect_ratio_index = "6"
video_scale_integer = true
rgui_show_start_screen = false

I have been working at this problem for many days right now and i have been done many changes in different files, i have done almost every tip from my google searches :/

One more problem is that form some guides from google i my folder index do not look like others sometime. i have installed the RetroPie SD-card Image, but i don’t know the version number, only Emulationstation v2.0.0-rc1.

Thanx for the help!
/Fredrik

[/quote]

You have to choose your monitor’s native resolution as the video output resolution. Retroarch render resolution should match this. The native res is the maximum res your display is capable of.

You cannot get a perfect 4:3 aspect ratio without scaling artifacts using a fixed-pixel display. Well, there are some exceptions, but SNES isn’t one of them. Your best bet is to use 5x integer scaling on the Y axis and set the X axis accordingly. This will result in a slightly wider than 4:3 aspect with the top and bottom cropped off, but with the original pixel aspect preserved. See “how to get perfect video scaling”

It is highly recommended that you not set video output to anything other than your native res, as this will cause input lag and scaling problems.

EDIT : I see you are using a 720p display. In that case, just follow the instructions for setting integer scale. You can usually get close to a 4:3 aspect ratio. I think 4×3 integer scale gets you close to a 4:3 aspect ratio with NES for example.

Well… heres mine, I just got it working, but its a N64 Controller Via GPIO.. I dont know if that matters… Also, my sensitivity for my Analog stick doesnt seem sensitive enough, but I dont see a setting for that.

Hope this helps…

input_device = "N64 controller"
input_driver = "udev"
input_b_btn = "2"
input_y_btn = "5"
input_select_btn = "0"
input_start_btn = "9"
input_up_btn = "h0up"
input_down_btn = "h0down"
input_left_btn = "h0left"
input_right_btn = "h0right"
input_a_btn = "1"
input_x_btn = "6"
input_l_btn = "7"
input_r_btn = "8"
input_l2_btn = "5"
input_r2_btn = "4"
input_l_x_plus_axis = "-0"
input_l_x_minus_axis = "+0"
input_l_y_plus_axis = "-1"
input_l_y_minus_axis = "+1"
input_enable_hotkey_btn = "0"
input_exit_emulator_btn = "9"
input_menu_toggle_btn = "6"
input_load_state_btn = "7"
input_save_state_btn = "8"
input_reset_btn = "2"
input_state_slot_increase_btn = "h0right"
input_state_slot_decrease_btn = "h0left"

Floob has it right. I am on 3beta on a pi2. I first tried remapping the exit combo (that another person recommended) and it did not work.

However, remapping the hotkey by adding Floob’s line to the retroarch.cfg files for fba-lr and imame4all-lr work for all games that the [rSHIFT] keyboard button had been working for to add coins.

Getting MAME games to play nice is not for the faint of heart.

My problem is that when using Mame4all-Pi, I can hit TAB to bring up the menu, but then nothing will input.

I’m using wireless xbox controllers, and for many games, I can’t insert coins, but some games work just fine using iMAME4ALL-lr.

Does the xboxdrv interfere with the USB keyboard?

edit: I solved the coin issue by using the suggestion in the Retropie Wiki FBA section (moving the exit/hotkey button). I still cannot input after hitting TAB when using MAME4ALL-PI.

When you start the game, you should get some yellow text showing which controller file is being used appear at the bottom of the screen.
It will say be somewhere like /opt/retropie/emulators/retroarch/configs/….

If you edit that file you can change the behaivour of your hotkeys.

[quote=97493]Does not work for me. I use the Libretto Version. Retropie 3 beta

[/quote]

This is probably because you need to enable hotkeys (hold select) then press F2.
Or as you have found, use the joypad equivalent.

By default it should be F2 to save and F4 to load. (Assuming you are using the libretto snes9x next.) Look at the section under hotkeys here:
https://github.com/retropie/RetroPie-Setup/wiki/RetroArch-Configuration

Does this value exist in your file?
/opt/retropie/configs/all/retroarch.cfg

input_enable_hotkey

I’d remove this line from it (the /opt/retropie/configs/all/retroarch.cfg) , as it exists in your controller file:
input_enable_hotkey_btn = tab

Also, this video may help give an overview (about 27:30 in)

[quote=96992]Hi, I was having the same problem but i found a solution!
This is most certainly a bug.

Go to the right directory:
cd /opt/retropie/emulators/retroarch/configs/

then replace USB_Gamepad_.cfg with USBgamepad.cfg
So…
cp USBgamepad.cfg USB_Gamepad_.cfg
You might want to make a backup first for USB_Gamepad_.cfg

Hope this helps.

[/quote]

This does not work for me. Can you please paste your config? Mine is:

input_device = “USB Gamepad ”
input_driver = “udev”
input_b_btn = “2”
input_y_btn = “3”
input_select_btn = “8”
input_start_btn = “9”
input_up_axis = “-1”
input_down_axis = “+1”
input_left_axis = “-0”
input_right_axis = “+0”
input_a_btn = “1”
input_x_btn = “0”
input_l_btn = “4”
input_r_btn = “5”
input_enable_hotkey_btn = “8”
input_exit_emulator_btn = “9”
input_menu_toggle_btn = “0”
input_load_state_btn = “4”
input_save_state_btn = “5”
input_reset_btn = “2”
input_state_slot_increase_axis = “+0”
input_state_slot_decrease_axis = “-0”

Add this to your retroarch.cfg file
I have different configs set up for each emulator so i can do different things.

input_enable_hotkey_btn = 10
input_exit_emulator_btn = 11

I use arcade controls, so i have a “select” button that is button 10. I am going to use that as my “hotkey” for different macros

Any solution for this yet? I’m having the exact same problem. Exit hotkeys work in all emulators except Atari 2600. The select and start keys don’t even perform their normal function either. For now, I’m keeping a keyboard mounted on my cabinet so I can access escape, F1, F2. I’d really like to get all the functionality contained to the cabinet controls though.

I tried using other mappings just for Atari, but realized that nothing I put in the Atari retroarch.cfg gets picked up to override the default retroarch.cfg. It’s annoying cause Atari only works with player 2 and button y. I’d like for the player 1 button b to be the controls for the first player. And then also add the second player if that’s supported.

Then I realized that nothing I put in any of the emulator-specific retroarch.cfgs is getting picked up. I tried mapping the Sega buttons to be more like the original controls, but no matter what configuration I put in the Sega file, it always uses the default config in the “all” folder.