Issue with key input on build 2015101801 on Arch Linux

I used the original build of Unity on Linux and everything worked fine, but I updated today to build #2015101801
on Arch Linux, and I’m having issues with player movement now.

I’ve created a new project, created a new Cube, and attached this script to it:

using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour {
        void Update () {
            if (Input.GetKeyUp(KeyCode.UpArrow)) {
                Debug.Log("Up");
                transform.position = new Vector3(transform.position.x + 1f, 0f, 0f);
            }
        }
}

Two issues happen. First, if “Maximize on Play” is not selected, focus is lost from the Game view after each key press.

Second, I have to hit the arrow keys many times (up to 30 seconds in some cases), to get any movement on the screen.

Im having a similar issue. Anybody?

Can any Unity developers repro this issue?