Hi,
I bought a Dell laptop about a month ago. I partitioned the hard disk for dual booting opensuse's Tumbleweed with W10. The point is that whenever I close the lid of the laptop, in Tumbleweed, it won't "wake-up". In w10 this simple function works as expected so I'm sure that the problem resides in the configuration of Tumbleweed or plasma or I don't know where, but I need help.
If I leave the machine untouched for 10 min, as I configured it, it will "sleep" and I can "wake it up" wiithout problem. The thing occurs when I close the lid. I configured it to "sleep" after closing the lid... but when I open it... the machine doesnot "wake up" and I have to shut it down by pressing the on/off button, and restart the OS.
It gives the impression that when I close the lid the machine does not "go to sleep" in the first place... so it can never "wake up"...
Can you help me?
The Dell machine is the 5575 with amd ryzen 5 and amd radeon graphics
Thanks!

check in your System Settings -> Hardware - Power Management: you need to specify both for the lid closed on AC Power as well as on Battery. I guess you are on Battery and maybe your settings are different in this case.

FWIW: My Lenovo Yoga 510 wakes up without problem after closing the lid, Plasma 5.17.4 on Kubuntu 19.10

Hi,
I thank you for your reply.

Mamarok wrote:check in your System Settings -> Hardware - Power Management: you need to specify both for the lid closed on AC Power as well as on Battery. I guess you are on Battery and maybe your settings are different in this case.

I did this but, never worked. It seems to be an specific Dell's issue. Any way, I found a solution in Dell's community forum, in case it helps somebody:
The recommendation is to install:

laptop-mode-tools 1.72.2-4

You download this package in this link:

https://aur.archlinux.org/packages/laptop-mode-tools/

You find all the information in these two links:

https://wiki.archlinux.org/index.php/Power_management

https://wiki.archlinux.org/index.php/Laptop_Mode_Tools

The package also contains information on how to configure the tools.

Best wishes from México!