If I put the laptop to sleep through KDE, GNOME or systemctl suspend it won't wake up. The LED of the power button does stop flashing indicating it SHOULD be waking up. The screen does not power on again, tho. I have to shut it down with a long press.
The laptop is a lenovo LOQ 15arp9 with only a dGPU, a 4050 (6Gbs).
So far I've tested:
nvidia-open + linux
nvidia-open-dkms + linux
nvidia-open-dkms + linux-lts
nvidia-open-lts + linux-lts
nvidia + linux
nvidia-lts + linux
nouveau + linux
sshing into it while in the "waking" state, but it can't connect
updating the bios to the latest version
secure boot is disabled if that is important
I cannot read anything relating to suspension on journalctl on the arch instalation. I want to note that I have installed 3 times arch on this machine. Manual, archinstall and manual again. In neither sleep worked.
I can confirm linux mint does work.
But an Endeavour OS live ISO does not.
Is there a firmware package I am missing with arch?