Having exactly the same problem!

Posted on here last week but not had a reply from anyone.

Hopefully someone will be able to help, otherwise I fear its a fresh install, which I really really want to avoid :-(

Anyone able to help me with this at all?

Just wanted to share, that I had issues where I couldn't change default emulator for a specific rom. It just kept being set to something and wouldn't change.

Editing the file opt/retropie/configs/all/emulators.cfg showed several lines of corrupt data. Removing these let me change the default emulator again.

@herb_fargus - I'd say based on the work you do in the forums alone thank you is well warranted. I just discovered video previews from the Selph scraper and I feel like I've entered an alternate universe where I am millionaire

@herb_fargus It worked, thank you!

@sonicsheppard also, if you want the sensitivity in the analogs to work better get something with a longer analog joystick. You can get a flightstick or use something like the mad catz xbox 360 gamestick:

0_1508592124231_16280532-3F05-4D38-9148-FB0828D4BEE9.jpeg

@sammyboy you shouldnt use runcommand for dosbox. Dosbox has its own video settings in the dosbox config file. Also follow the retropie dosbox wiki to learn how to create seperate .sh files for each game.

@ mitu Thanks a lot, it worked!

@red2blue i use a 13 port usb 2.0 with a 2.5 amp power supply running 11 devices on my pi, so 7 ports with 3 amps is as good as you get, as long as the power supply saying 3 amps isnt a lying pile of junk.

@sonicsheppard You can remove the noexec flag by editing /etc/usbmount/usbmount.conf and removing the noexec parameter. Save and reboot.

well just tried it on a psp. It was way better there. it just small. I missed some jumps but I think cuz im very rusty maybe. Had to use 1.1 so it wouldn't tare.
That's based on the x9 emulator so im guessing my tv is so crappy.

@rosskii yes no issues with as many players as you want. Player position is based on the usb port order even on a usb hub.

@gtr63 Maybe you set SNES up first to test before setting up the whole USB mounting thing. It's easy to forget what exactly you did when first setting up, especially if you are not experienced with RetroPie or Linux.

ignore this now, managed to get it working