Hi List,
I'd like to share my experience in solving the suspend/hibernate problem on my new laptop HP PAVILION 15-cs0989nl (I've read some post on the internet regarding this argument).
The laptop has a "NVIDIA GEFORCE card" as well as an "Intel Corporation UHD Graphics 620 (rev 07)".
After the new Fedora 29 Installation the system automatically loaded drivers "nouveau" for the NVIDIA card.
Analyzing the logs after an unsuccessful suspend command I've noticed a number of messages regarding this driver, so I've decided to blacklist it putting the following in the file /etc/modprobe.d/blacklist.conf
blacklist nouveau options nouveau modeset=0
and adding the command: rd.driver.blacklist=nouveau
to /etc/default/grub in the line starting with "GRUB_CMDLINE_LINUX=" and then recreating the grub.cfg with grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
Last thing I did was to disable safe boot in BIOS Setup.
That's it. Right now both suspend and hibernate work like a charm.
Hope this could help someone.
Ciao