• Electron version: Electron 1.6.8
• Operating system: Windows 10 Build 15063

Expected behavior

The main display is 3840 x 2160 with 250% scale factor and the external monitor (put on the left of the main one) is 1920 x 1080 with 125% scale factor.

When a new BrowserWindow is created with options {x: -400, y: 0}, it is on the external monitor (scaleFactor = 1.25) so the left-top of the window should be at (-500, 0).

Actual behavior

The left-top of the window is at (-1000, 0).

How to reproduce

Two monitors with the different scale factor.

https://github.com/JenningsWu/electron-quick-start

Simply npm install and then start this electron-quick-start app.

The app window should be on where it is closed. But if it is closed on the external monitor, next time the initial position will be wrong.