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I am having an issue with my laptop where the login screen only shows if an external monitor is plugged in. When I turn on the power:

  1. The Grub menu appears (I have dual boot with Windows)
  2. If I select Ubuntu then it shows the purple loading screen with the Ubuntu logo
  3. The screen turns black (not even back lighting).
  4. If I press enter and type in my password like I normally would at the login screen, the back lighting turns on, and then my home screen shows and everything works fine.

If I do this with an external monitor plugged in, then in step 3 the login screen shows on my laptop monitor and I can log in.

If I start with my monitor unplugged, wait for the screen to go black in step 3 then plug in the monitor, the login screen appears.

When I lock the computer the login appears: the problem only happens when booting up.

I tried deleting my ~/.config/monitors.xml file but that didn't work. Any other suggestions?

System Information
- Linux 18.04.1
- Kernel 4.15.0-43-generic
- Computer: ASUS Transformer Book Flip TP500LA (https://www.asus.com/2-in-1-PCs/ASUS_Transformer_Book_Flip_TP500LA/)

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Can you try to use "Integrated Intel® HD Graphics 4400" proprietary graphics driver over "Software & Updates" setting menu as shown in Screen Resolution Settings not Working after NVIDIA Driver Update

  • There is no option to do this sorry, it tells me I have no proprietary drivers available. – AusT Jan 14 '19 at 23:17

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