Ubuntu
linux package

  1. Bug #1999189
  2. Comment #23

Comment 23 for bug 1999189

Revision history for this message
Scott P (spause) wrote (last edit ):

I have tested the issue on the live 20.04.5 ISO usb, and the issue occurs in the Live config.

If I choose the Safe Graphics config - the issue does NOT happen.

My view of what is happening in the Safe Graphics mode that is notably different is that my "main monitor" never fully powers off when Blanking kicks in. This means there is always a display for the OS/driver to refer to.

On my normal/default mode, the main monitor actually turns off (both monitors turn off) and I am immediately unable to wake them. I suspect there is some major issue when the count of displays present/connected becomes zero. That's my best guess.