Re: suspend on lid closed doesn't work

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> On 17 Mar 2022, at 15:27, Paolo Galtieri <pgaltieri@xxxxxxxxx> wrote:
> 
> Folks,
>   I have 2 laptops, one running F31 the other F34.  When I close the lid on the F31 system it suspends as it is supposed to.  I can ping the system and I get no response.  On the F34 system I close the lid and the system continues running.  I can still login to the system from the external monitor.  The power management configuration says suspend on lid closed on both systems.  I discovered that the reason it doesn't suspend on the F34 system is the external monitor.  My systems share an external monitor via a kvm switch.  Depending on which system the external monitor is connected to that system will not suspend on lid closure.  I verified the same thing happens with the F31 system.  There is nothing in the power management configuration that says anything about an external devices.

My guess is that the lid closed is ignored because you can “obviously”
use the system on the external display. Is there and external keyboard or
Mouse connected as well?

MacOS allows the system to run with the lid closed only if,
power, keyboard and screen and connected. I wonder if the DE is doing the same?

Barry

> 
> Is there any way to actually suspend a laptop when the lid is closed regardless of any external devices?
> 
> One thing I should mention is that the external monitor is directly connected to the F34 system via an HDMI cable, it's only the keyboard and mouse that go through the kvm switch. If I directly connect the monitor to the F31 system, also via HDMI, then it also fails to suspend on lid closure.
> 
> Any help is appreciated.
> 
> Paolo
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