I run LXDE with Ubuntu 16.04 on a computer with 2 screens. I installed ARandR to be able to display the desktop on both screen, and I saved the configuration so that it is run on login. It works fine, but I get an issue when shutting down and restarting the computer:
- If both screens are plugged when booting, grub appears on second screen (I have dual boot), then nothing: screens are completely black. Second screen displays message of lost signal. I have to press start button to shut the computer down.
- If I unplug the HDMI wire of the second screen before booting, everything is fine: I get to the login screen, and I can plug back the screen. After login, desktop is displayed on both screens.
Thanks for helping