Ubuntu
systemd package

  1. Bug #1450009
  2. Comment #5

Comment 5 for bug 1450009

Revision history for this message
Martin Pitt (pitti) wrote : Re: suspends on closed lid, does not recognized external monitors/dock

Background: logind has some "failsafe" logic to go to suspend after 30 s if the lid is closed and there are no external monitors connected (http://cgit.freedesktop.org/systemd/systemd/commit/?id=ed4ba7e4f65215). This would lead to effects like this if the lid switch is broken and always says "closed" (like in bug 1438301), and monitor detection fails (like in this case - /sys/class/drm does not have multiple outputs).

So there are two things to fix here:

 - Investigate why on this system the lid switch always reports "closed"

 - Dial back the failsafe to not get engaged if the lid switch reports "closed" right from the start when systemd boots. In that case it's clearly broken, as "normal" laptops don't boot with the lid closed.