Ubuntu

20.04 i915 laptop external monitor turns off when inactive, must open lid to turn it on

Asked by Bjorn Helgaas

Dell 5520 laptop -> Dell Thunderbolt dock -> HDMI -> external monitor.
Running 20.04, i915 driver.

Laptop lid closed, using external monitor only. When external monitor turns off (after sleep-display-ac), keyboard/mouse activity should turn it back on, but do not. Opening and closing the laptop lid does turn the external monitor back on. Laptop is not suspended; I can ssh in from another machine.

Happy to collect any additional information.

Question information

Language:
English Edit question
Status:
Expired
For:
Ubuntu Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
Launchpad Janitor (janitor) said : 		#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.