I am running a new HP 14s-fq1377ng Notebook (Processor: AMD Ryzen 7 5700u with radeon graphics × 16, Graphics: AMD Renoir) and have a working dual-boot with Windows 10 and Ubuntu 20.04.
In Ubuntu, when I try to put my laptop to sleep by either closing the lid or selecting "suspend" the following happens: After a few seconds where it seems that nothing happens, the Notebook screen goes black as desired. Afterwards I am not able to resume to the session by pressing any key. Even pressing the power button has no effect. Only thing I can do is to press the power button for 3 seconds to shut down completely. Then I can reboot via the GRUB menu but my Ubuntu session is lost.
On the same laptop in Windows, I have no problems putting the laptop to sleep and waking it up at all.
I know that there are lots of suspend issues out there and I spent hours looking for a solution but I couldn't come up with one that suits my specific problems. Any help is greatly appreciated!
Edit: Result of
journalctl --system --boot=0 | egrep -i "suspend|resume|entry|exit"
reads
Okt 21 10:38:03 jansc-HP kernel: Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes, linear)
Okt 21 10:38:03 jansc-HP kernel: nvme 0000:02:00.0: platform quirk: setting simple suspend
Okt 21 10:38:03 jansc-HP anacron[695]: Normal exit (0 jobs run)
Okt 21 10:38:05 jansc-HP systemd[1]: systemd-backlight@backlight:acpi_video0.service: Main process exited, code=exited, status=1/FAILURE
Okt 21 10:38:05 jansc-HP systemd[1]: systemd-backlight@backlight:acpi_video0.service: Failed with result 'exit-code'.
Okt 21 10:38:05 jansc-HP systemd[1]: systemd-backlight@backlight:amdgpu_bl0.service: Main process exited, code=exited, status=1/FAILURE
Okt 21 10:38:05 jansc-HP systemd[1]: systemd-backlight@backlight:amdgpu_bl0.service: Failed with result 'exit-code'.
Okt 21 10:42:53 jansc-HP anacron[2935]: Normal exit (0 jobs run)
Okt 21 11:33:19 jansc-HP anacron[5518]: Normal exit (0 jobs run)