@macothal you need to install the dosbox emulator as it doesn't come pre-installed with the image from the website.

Do that, restart EmulationStation and it'll all be good.

@markyh444 Thanks a bunch! I read through it and it does look very tricky. I'm thinking it may just be easier to do a fresh install to be on the safe side. Thanks again!

Many ways!

A power supply with a switch on so you can power down the unit after you've done your safe shutdown.

Power the fan from the USB port so that it goes of with the Pi.

One of these circuits that will shut off the power to the whole device a couple of minutes after the shutdown is initiated (although you might need a new case):

https://www.msldigital.com (they have a riser cable to get it away from your fan too)

http://mausberry-circuits.myshopify.com/collections/frontpage

https://lowpowerlab.com/shop/product/91

@tonydotigr All of the information on the I-PAC applies to the Mini-PAC. So you will have a default setup that is ready to use with MAME. Anything else will require you to reconfigure the controls on a per emulator basis or go and adjust the default configuration in hardware.

Old topic, but it's the one I found via Google after spending some time trying to figure out how to easily launch DOSBox games. Tried to follow both guides, but seemed very manual and finicky so ended up scripting it for my own Pie3 instead - basically it just takes an extracted copy of the game and allows you to select the executable and that will be saved to an init-file. Put it up on github if anyone wants it (https://github.com/tebl/retropie-dosbox-configure).

Ok have the audio working now. Last issue I have is that my usb Retro NES remote is all messed up. ie, b and a buttons are switched, select is starts. This causes issues when I cannot hold select and start to exit game. The remote works fine in other rom games except the NES. I have tried setting up several time in the input game pad set up and all worked fine on that

@SpacedInvader yup. But for others who come searching for an answer i would alter the title from "ports not working properly" to "doom ports not working properly"

I could narrow the problem down a little bit. When the db9_GPIO_RPI driver is not loaded and i try to unload it, I get:

"modprobe: FATAL: Module db9_gpio_rpi is not in kernel"

that makes sense but I tried to avoid that with try/except. Seems it does not work. Any idea why?

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

You can add more ports with a USB hub.

@rbaker Ok, thanks for the respons. The image is without ROMS but I get the point.

@lordluca said in Mame - missing game files only on pi?:

Why does some games don't work on Mame on Pi while working fine on Mame on PC?

Because there are many versions of mame. Each version of mame requires a very specific set of roms to function. Rom files are not universally compatible.

Read this:
https://retropie.org.uk/forum/topic/7247/guide-arcade-games-and-how-to-play-them-a-non-technical-mame-fba-tutorial

@LaneG22 to get es to pick up roms watch this

@doctorstork RTFM: https://retropie.org.uk/docs/Updating-RetroPie/

Yep that was it thank you.

@dquez
How did you "reset" everthing? I too was using tab to configure mame 2010. Trying to mess with player 2 in the tab menu, i changes all the n/a to "none" and now nothing works for player 2. Even binding my keys in retroarch on player 2 wont fix the prob. I think i have to reset the mame tab settings like you did.
Thanks

I found and fixed the problem. I hadn't paid attention to the fact that I hadn't put up and down and left and right on the same axis ( +1/-1 +0/-0 ). By simply swapping two of the switch cables on the sticks and remapping the inputs in retroarch I now have 4 directions + 4 proper diagonals on both sticks ( easily tested in 1943 for example )

Its a new sd card that works fine on my phone and pc. The image is written with win32diskimager should I maybe use different writing software?