新的PUSH 2 在WIN 7 系统下遭殃，各种USB调节都开不了屏幕，求了解
一直停留在开机画面

Why are the Push display and Pads dimmer when the AC adapter is not plugged in?
Push 2 needs quite a bit of power to provide fully lit buttons, pads and display. Therefore these will be automatically dimmed when the AC adapter is not plugged in and Push is only powered via USB.
You can also check that the display brightness is set to the maximum value by pressing the Setup button.
为什么 推显示和垫调光时，AC适配器没有插好吗？推2需要相当多的电力提供完全照亮的按钮，垫和显示。 因此会自动变暗时，电源适配器没有插上电源，将仅通过USB供电。您还可以通过按设置按钮来检查显示亮度是否设置为最大值。https://www.ableton.com/en/help/push2/how-to/article/push-2-faqs/