Hey buddy the way i did it which is quite easy is take the bios and put it in the USB section along with your psx games section. (I know that isnt right but bear with me).
Plug your USB in like always and wait for upload to finish after done press F4 in the emulation station window to bring up a terminal and type in the following:
cd home/pi/RetroPie/roms/psx/
exactly like that then type in:
ls
You should see the SCHP1001.BIN file or whatever in this folder near the top i think, if so type the following command:
mv SCPH1001.BIN /home/pi/RetroPie/BIOS/
that will move the file from the USB for you this should fix the issue.
If the first command isnt working follow this video from 1:20

Hope this helps, glhf.

@muehltime It does nothing on the RPI.

Thanks for the reply.

I did notice something else. Before I flash the image file to the SD card, the format of the SD card is in fact FAT32. After the image is written, it is FAT (not 32). Could this be an issue?

@crumbs The thing is, per emulator / per game settings are functional. So if lr settings are not getting saved on your setup then you do have a problem and those informations might help others to better understand the situation, get rid of the usual suspects (bad power supply, etc)

@capeman Thank you.
I'll just stick with the vga crt set up, I'm more than happy with the results right out of the box (I'll have a play with some settings myself) compared to the lcd with scanline shader effects.

Much appreciated.

@beastnick541 OK. I'm pasting here for you:

Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

You didn't give enough info about your setup and looks like didn't search the official docs.

I would suggest you to enable emulationstation in autostart, but I think you should give more info about your setup.

How do I use the internal command prompts? Like how do I log in so I can enter in all the code? I know that if you press f4 that it brings up the prompts, but how do I log in and shit?

I tried device_joystick raw first and had no luck with either controller, but sdl worked so i stuck with that. I will take another look at it. Thanks for the reply!

@neonix yes i believe it is a permission problem you had. If you put those in the playstation controllers config file instead of the psx config it wont interfere with other controllers. I put those settings in all my controllers configs that could possibly be used to play psx and famicom disk system games. (Of course changing the numbers to match that controller)

CRT-shaders only hide the issues, not actually fix them. And if I use any of those screen smoothening to smooth the whole screen, the gameplay doesn't feel good due the blurryness it brings in. Personally, I aim for better gameplay experience, improve the game visuals, rather than play them as they were designed back them. Most of the PS1 games can look really good with modern tricks to improve them, and they're getting there with that PCSX-Reloaded, which has that GTE-accuracy fix and polygon stabilizer to fix the main issue with PS1 games. But we'll see, that when that is going to be ported over to Raspberry-environment. But that alone doesn't fix the blurry 2D-stuff, that would definitely need some new tools and shaders.

I am new to retropie and have a pi 3, i only changed cmdline and didnt install the kernel
There is 2 gamepads recognized except when i try and register my controls in retroarch it does not recognise player 2.
any help please...

Problem Solved:
It turns out it was a wiring problem: the A and B Buttons were crossed on the 2nd controller. It seems the system has no way of differentiating between the two otherwise identical controllers. So the config for controller 2 probably overwrote the config for controller 1 and vice versa each time a new controller config was put in.

@tonythetiger giving people more info to be able to help you really helps. There is a link at the top of every page that tells you what info you need to provide. You agreed to this when signing up. You provided no info on your setup so no one would even know how to help you. You can bump a thread but please dont open multiple posts on the same issue. If you had mentioned that you had a ps3 controller people might have been able to tell you to uninstall the ps3 driver, setup both wii u controllers so they are working correctly, then reinstall the ps3 driver. You cant be mad at people for not helping you if you dont provide info.

@caver01 Thank you. I assumed it was something simple (like, 'duh' simple), but I hadn't noticed that prompt before.

@tonythetiger not everyone knows the answer to everything and a lot of times people dont provide enough info for anyone to help. All help here is done in peoples free time and with how many posts get posted in a day some posts can get lost at the bottom of the pile. It would be cool if you posted your solution to be able to help others who have this same problem.

@edmaul69 said in Does the Doom Metal Mod work with PRBOOM?:

@dinierto are you try to use tyrquake or lr-tyrquake. I have lr-tyrquake running.

Trying to use lr-tyrquake with no luck. I can get Dark Places working but I want the libretro core and controller support.