To resolve the display issue you’re encountering while projecting on your Acer ONE 10 using spacedesk, start by ensuring that both your primary device and the Acer ONE 10 have the latest display drivers and software updates, including the most recent version of spacedesk. Next, adjust the resolution settings on your primary device to match the native resolution of your Acer ONE 10. Ensure that the aspect ratio on both devices is the same to prevent any stretching; this can usually be managed in the display settings by maintaining the aspect ratio option. Additionally, calibrate the display settings by exploring scaling options under “Scale and layout” in the display settings on your primary device. Check the orientation settings to ensure they are set correctly, opting for landscape or portrait mode as needed. Disconnect and reconnect the Acer ONE 10 from spacedesk, restarting both devices to reset the connection. If these steps do not resolve the issue, consider using third-party software like DisplayFusion to better manage the multiple displays and their resolutions. By following these steps, you should be able to eliminate the stretching and resolution problems and achieve a proper display on your Acer ONE 10.