Bug Arrow keys get stuck when you press them.

After pressing and releasing arrow key, input.keyget always sends true for that key.

 

I'm also getting this.

 

Same problem here. Glad to know it wasn't just me. I spent an hour or so last night looking back over my code thinking I did something.
Don't know if it helps but:
Xubuntu (Ubuntu 14.04 Variant)
Running XFCE DE (Also occurred in OpenBox)
Compact Laptop Keyboard( No numpad and has Fn keys to add utility)
Keyboard Set to English(US)

Can't think of anything else to add.

 

I am having a similar issue when i use Input.Axis where when an arrow key is pressed it is if it were held down and all other arrow keys become ignored.

 

I also have this problem when using Input.GetAxis.

 

Yup, me too.

I'm wondering if it has something to do with other UI elements stealing focus? When I press other arrow keys after the first one, I see various tabs highlighting and un-highlighting (like the Game, Project, and Hierarchy tabs).

 

I have also noticed this with other keys as well. When I press "E" in my game to interact with objects I notice the Scene Keys (Grab, Rotate, Translate, Scale) change.

 

Same here in Gentoo Linux - It definitely has to do with focus stealing. If you click the Game-Tab you can enter another key and lose focus again.

 

I have this bug too. A just test unity with the defaul project in ubuntu 14.04

 

While in play mode, does anybody else notice a slowdown when you hold in a keyboard key when 'repeating' gets activated? The delay after hold in the key, it continuously causes small pauses every 'repeat' keyboard event? (while holding it down) .. It almost seems like Unity is doing quite a bit of processing when it gets the repeat key events?

 

I'm having the same issue, Ubuntu 14.04, unity-editor-5.1.0f3+2015091501_amd64

 

Same bug here. I created my project with Unity3d 5.2 on Windows.
Then i 'imported' my project into Unity3d 5.1 (unity-editor-5.1.0f3+2015091501_amd64) on my Linux Mint 17.2 + Cinnamon 2.6.13.
It works perfect on Windows, but it looks like the first button pressed is getting stuck.

I'm using this code:

Code (CSharp):

1. float horizontal = Input.GetAxis ("Horizontal");

 

My friend and I just noticed this same issue yesterday.

 

Same problem, but only with the up/down keys, others (f.e. w,s) work as expected.
First tries of a newbie

Code (CSharp):

1.  
2. float hPos = GetComponent<Transform>().position.x + ( Input.GetAxis("Horizontal") * Time.deltaTime );
3. float vPos = GetComponent<Transform>().position.y + ( Input.GetAxis("Vertical") * Time.deltaTime );
4.  
5. GetComponent<Transform>().position = new Vector3( hPos, vPos, 0 );
6.  

k

 

I just ran into this as well, running under Linux Mint 17.2 with the Cinnamon desktop and an Irish keyboard layout. However, when I build and run the project, it works as expected.

 

I'm also using Linux Mint Rafaela with the latest editor and having the same problem.

Does anybody know how to activate the alternative input buttons in the manager when the editor is playing?

And also, what is the #if directive used to identify the Unity Editor specifically under Linux?

 

Same issue on Fedora 22.
Tried multiple desktops, no difference.
When I click on any panel (e. g. Project) in play mode, it catches the keystrokes.

 

same issue on ubuntu 15.10

 

I'm having the same issue, Ubuntu 15.10, unity-editor-5.1.0f3+2015091501_amd64

 

I'm also having the same issue. When I click arrow keys focus cycles to the game window.

 

Same error on Unity 5.2.2. Ubuntu 15.10

 

Getting the same issue in editor in Ubuntu 15.10 Unity 5.2.2f1 Personal. The exact same project copy and pasted to same version of Unity in OSX works flawlessly.

 

This still happens on 5.3.0f4. I noticed that different axis get stuck depending on whether the viewport is maximized or not.

 

Same error in 5.3.x build

 

News?

 

Today I noticed that if you separate (unpin) the Game Tab from the rest of tabs and run it as a separate window, the arrow keys works well. I think that the reason it works is because there are no other tabs to navigate to with the arrows so the focus doesn't leave the game tab.

This does not fix the problem but it works as a temporal workaround.

 

this seems to be fixed on 5.3.1f1

 

This is still broken. That's with 5.3.2f1, 5.3.2p4, and 5.3.3p1.

I tried floating the game window off separately like was suggested as well, didn't help.

Edit. I just realised this is a Linux forum, I'm having this exact same bug on Windows. Made a new post here...

http://forum.unity3d.com/threads/input-keys-get-stuck-down-windows-edition.389618/

 

Hey @Tak, I'm still getting this issue on Ubuntu 18.04.1 LTS and Unity 2018.3.0b7. Any ideas? There are no issues with WASD and Left/Right arrow keys, however. I've only got this issue after upgrading from 2018.2.7f1. Thanks for all your help, besides this bug, I'm loving the Linux version of Unity and Unity Hub so far!

 

I'm also getting this issue with stuck arrow keys with 2018.3.0f1 on Ubuntu 18.10. The issue is not present in 2018.2.17f1.

 

We're in the same position @ljessen. Hopefully, the issue will be fixed soon.

 

Just want to chip in, I have this too on 2018.3.0f2. Was not a problem on 2018.2.7f1. Ubuntu 16.04. Maximize on play fixes it, but then you have to pause the game to see the terminal. Popping the game window out works too, but I can only make that window bigger, not smaller, so placing it in the correct place is a pain. For the rest I have the same experience as #27, when the game doesn't react to the arrow keys when I press qwer the unity tools are selected, instead of nothing happening at all.

 

Really? I don't think that worked for me. However, I'll double check.

 

Same problem here using Linux Mint 19.1. "Maximize On Play" does not work. I just can use the WASD keys to move my character.

 

Hmm, "Maximize On Play" isn't giving me an issue on Ubuntu 18.04.01 LTS. Weird.

 

Still getting this issue. Maximize play fixes the left and right arrows for me, but the vertical arrows still lock no matter what I do. Running Unity 2018.3.5 on Lubuntu 18.10.

Was trying to refresh myself with the UFO tutorial on the official Unity site, but this issue appears to break it on Linux. Even when running the included "completed" game from the asset package.

 

Getting the same issues. On version 2018.3.5f1 with Ubuntu 18.04

All my keys keep being see as trigerred by Unity while I only pressed them once. Quite annoying... Some fixes ?

 

Seems to be the same as https://issuetracker.unity3d.com/is...lay-mode-making-keyboard-input-switch-screens

I think so because another thread mentioned that input may be stuck when leaving an app with alt+tab.
So the same thing probably happens when you press the directional arrows on Linux, as they will focus another tab and move the selection.

Could the original poster check if the bug is present in 2019.2? (it must be alpha only right now)

 

Original post is 5 years old mate

 

I'm having the same issue on Ubuntu 18.04.2 (5.0.4) & Unity3d 2018.3.9f1

 

Having the same issue on Ubuntu 18.04 with Unity 2018.3.11, while 2018.1 worked fine

 

Still with 2018.3.14 2018.3.14f1 on Ubuntu 18.04

 

Okay, finally! After nearly four years, it seems to fixed on Unity 2019.1.1f1. Woohoo!

 

2018.4.12f1 LTS on Ubuntu still with this bug

 

It has been fixed in 2019.1.1f1 and later:

 

I'm new to Unity development, and I've noticed this problem with Unity 2018.4.14f1 on Ubuntu 18.04.

With the Karting tutorial, I'm not able to steer the kart properly at all - a single tap of the Up arrow sends the kart into permanent forward motion, and the left and right arrows don't seem to take effect in a timely manner. It feels like occasionally the left/right input makes it through but it's several seconds late.

I added some Debug.Log statements to KeyboardInput.cs and I can see that even after tapping the Up arrow briefly, Input.GetKey(KeyCode.UpArrow) continues to return true indefinitely, even though the key has long been released.

If I build the game and run it standalone, the input works correctly.

EDIT: I wrongly assumed that UnityHub would have installed the latest stable version of Unity for me, but I was wrong. I now see that I can manually install 2019.2.17f1, so I'll try that instead.

EDIT2: I'm thinking that the Karting tutorial selected 2018.4.14f1 for me - so how can I open the Karting project with 2019.2? I can't seem to import it as an existing project.

 

Just change the project type in Unity Hub