Controller in EmulationStaion too sensible, repeated input

pollo666

@mitu lsusb -v results

mitu

@pollo666 This shows a 1ms reporting interval requested by the device.

To be honest, I'm not sure there's a bug here - if the device sends an input each 1ms and SDL has time to process it, this is what happens.

Does the same issue happens if you scroll in the runcommand launch menu or in the RetroPie-Setup script menus ? Make sure you've updated to the latest RetroPie-Setup version before trying it.

pollo666

@mitu Just tested the runcommand menu, it display the same behaviour, sometimes a button press became multiple input, so I enter a submenu with "A" and instantly exit because the repeated input virtual press the "OK"

pollo666

@pollo666 Updated to the latest RetroPie-Setup, same behaviour.
In those textual menu, RetroPie-Setup and Runcommand menu the repeated input problem seems to be less aggressive, in the graphical interface of EmulationStation is more prominent, but it could be only a feeling.

pollo666

@pollo666 I installed just for test from experimental AttractMode, it doesn't show input problem like EmulationStation.
I didn't consider it a solution because in EmulationStation I have all images and video configured in the right path, the right theme, etc..

mitu

@pollo666 Of course it's not a solution, but if the solution involves adding code to EmulationStation (and it seems so), this will not happen so quick.

pollo666

@mitu It was a long shot, I think there isn't many people with the same problem. Definitely Attract-mode isn't a solution, not so user friendly in the configuration.

mitu

@pollo666 it's definitely something to look at, but the difficulty is reproducing the issue. I'll try to simulate something with a virtual gamepad (via xboxdrv or python-uinput), but I cannot promise anything soon.

Just to get a trace of the behavior, can you run evtest agains the one of the gamepads in question, press a few buttons and post the trace on pastebin.com ? If I'll try to simulate one of these 'zero delay' gamepads, I want to have a picture of the event rate and inputs.

pollo666

@mitu Yesterday I just wanted to play and I gutted the 2 arcade stick, removed the fast polling pcb and reinstalled the old not-so-fast pcb that does not cause the repeated input problem.
I'll try to build a temporary stick with the more recent fast pcb so I can try to save the output with evtest.

pollo666

@mitu I have put together a franken-stick with one of the incriminated fast pcb, evtested it, here it is the output after a lot of pressing of buttons and moving of stick (dpad and analog)

https://pastebin.com/P4W7sArb

mitu

I've tried using xboxdrv to simulate something a faster event rate, but got nowhere.

The log provided also doesn't show anything special I see the input on/off events at about 1sec in-between, so the events are not reported each 2 ms, as I was thinking was the cause of the issue.

Not sure how to diagnose or solve this. I have an SNES adapter which claims 6ms latency and it works without issues with EmulationStation.

pollo666

@mitu OK, thanks for your efforts, for the time being I'll use different board for retropie. It wasn't just the inputlag, they have usefull feature, but I think I have found an alternative that don't seem to have problem with Emulationstation.