Switch Pro Controller Lag Issue

[green_lightning_ninja]

So I'm using the Nintendo switch pro controller (plugged in to my laptop) with MH World, when I came across an odd issue.

I've noticed some input lag with my controller when I'm hitting the monster and the rumble feature is turned on. For example, if I go into the training area with a heavy bowgun and fire wyvernheart at the pillar, there is input lag and just dropped input in general while I'm hitting it. When I aim up and down the pillar while firing, instead of the reticle moving up and down smoothly, it stutters and performs movements maybe half a second after I pressed them. (FYI my bowgun is set for no deviation, so I know that isn't the issue)

However, if I turn rumble off in the game, I no longer have any issues, and there are no problems when I use my 360 controller with rumble on.

I don't notice it unless I'm firing wyvernheart or slicing ammo, since they cause enough hits at a time to cause any noticeable lag. Nothing else causes an issue. Does anyone have any expertise as to what would cause this, and an easy fix so I can turn rumble back on? I'm fine with leaving it off, as I play 99% of my games without rumble, but I would like to have it on if I could.

Thanks in advance

[Flamberik]

I'm having the exact same issue and no solution yet.

[Tychoid]

Same issue with a DS4 controller via bluetooth. For example, if I am turning the camera and the controller starts rumbling... I will be unable to stop the camera from doing anything else and the camera will continue to turn that direction until the rumble stops (or starts a new rumble sequence). This has also caused many missed and delayed button inputs.

Just like OP, I have not had any issue at all with my XBox One controller (connected via wireless USB dongle).

MHW on PC uses the Steam Input API. This API has had numerous issues in the past with rumble integration / emulation in non-xbox controllers. My best guess is that it is a bug in the steam controller API.

[Ringating]

same experience here. it's really bad on charge blade when you have the sword charged, as each hit causes phial explosions that trigger vibration, causing inputs to be delayed for most followup attacks.

valve, pls fix.

[Bobby]

I have a similar issue. I use the switch pro controller. It was fine a few weeks ago, then recently it suddenly decides to not work as intended. I'm a GS main and the lag (or the lack of response from the Y button) is frustrating to say the least.

Edit: so I tried turning off the rumble/vibrate as OP suggested, it now miraculously works fine!! So I guess this is my solution until Valve releases a proper fix.

[J]

Rumble on the Steam controllers is still considered experimental, I'd imagine it might be on exotic controllers as well. Your xbox controller works normally because it uses Xinput.

[green_lightning_ninja]

So it's really just a software thing I can't help. Well I can live with it.

[Dremor]

I got the same bug here.

But... I cannot reproduce in any other game than MHW. I tried Nier Autotmata, Skyrim SE, and Portal Knights (currently downloading RiME and Redout), without getting any input lag (even when the controller is rumbling).

Maybe a bug due to a wrongly coded non-Xinput controller handler.

[austinp_valve]

Can you try opting into the Steam Client beta, we recently shipped a potential fix for this issue.

[green_lightning_ninja]

Well I tried it now and when I start unlooading the wyvern heart, half the time it seems to lock me into it and I can't stop whatever actions my character is doing until it finishes the full clip. Seems worse than it was before, though I haven't tried it since my initial post.

[| Ark |]

same issues here but i only encounter the lag when i wire my pro controller via usb.. using bluetooth is ok BUT is gets dc'd from time to time and it's quite irritating mid game.

[Dremor]

Originally posted by austinp:

Can you try opting into the Steam Client beta, we recently shipped a potential fix for this issue.

In my case, this fixed the problem. I still got some weird lags when using bluetooth, I'm waiting for a spare receiver in order to test.

[島崎健一💄💚]

Originally posted by austinp:

Can you try opting into the Steam Client beta, we recently shipped a potential fix for this issue.

sadly this didn't fix my problem, still have same lag issues, hope can fix this soon.

[austinp_valve]

I'm not able to reproduce this issue on my work or home PC's, but I can ship some debug code into the beta and hopefully you can help we troubleshoot further. The beta client is about to ship to stable so I'll need to wait for that to happen before shipping it though.

We already limit the rate that we send rumble commands to the controller but maybe we're not limiting it aggressively enough. I'll add a convar you can tweak via the console to adjust this behavior.

[luckyjj]

I have this (and it took quite a lot of trial an error to figure out for myself that it was because of vibration). and to then actually figure out what to google to find this thread.

It is like both the last input (like a camera moving) get stuck, and no new inputs are read until the vibration is done.

[QuantumBroccoli]

I can confirm that this is still a problem with the Nintendo Switch Pro Controller and Monster Hunter World as of 10/12/18.

As described above, if vibration/rumble is enabled in MHW options, then when rumble occurs the current input is locked (be that character movement or camera movement). This is most noticeable with the bow, where rumble is used to communicate charge levels, but problematic in any other situation where rumble is happening.

Turning vibration settings off in MHW game options "fixes" the problem, but vibration is used in key elements of this game.

Can reproduce the problem either wired directly via usb or bluetooth.

I am running the current Steam Beta client on Windows 10.

Austinp: let us know how to use that convar and maybe we can track down this problem. Thanks!