My computer: Opensuse Kde 15.3
kernel 5.3.18-59.19-default
Nvidia drivers: 470.63 (from Nvidia repo)
Graphic card: NVIDIA GeForce GTX 1050 Ti
I can suspend and resume in X11 without problems.
It hangs If a try wayland (kernel and systemctl modes) It resumes, but there is no video in the monitors)
I got this in dmesg (by ssh)
[ 173.449129] sd 2:0:0:0: [sdc] Synchronizing SCSI cache
[ 173.449273] sd 2:0:0:0: [sdc] Stopping disk
[ 173.452802] sd 3:0:0:0: [sdd] Synchronizing SCSI cache
[ 173.452834] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 173.452881] sd 3:0:0:0: [sdd] Stopping disk
[ 173.453820] sd 0:0:0:0: [sda] Stopping disk
[ 173.464819] sd 1:0:0:0: [sdb] Synchronizing SCSI cache
[ 173.464871] sd 5:0:0:0: [sde] Synchronizing SCSI cache
[ 173.465573] sd 1:0:0:0: [sdb] Stopping disk
[ 173.465668] sd 5:0:0:0: [sde] Stopping disk
[ 174.606335] ACPI: Preparing to enter system sleep state S3
[ 174.608895] PM: Saving platform NVS memory
[ 174.609000] Disabling non-boot CPUs ...
[ 174.610792] smpboot: CPU 1 is now offline
[ 174.613232] smpboot: CPU 2 is now offline
[ 174.616043] smpboot: CPU 3 is now offline
[ 174.618880] smpboot: CPU 4 is now offline
[ 174.620612] IRQ 136: no longer affine to CPU5
[ 174.621647] smpboot: CPU 5 is now offline
[ 174.622985] IRQ 131: no longer affine to CPU6
[ 174.624016] smpboot: CPU 6 is now offline
[ 174.625332] IRQ 132: no longer affine to CPU7
[ 174.626362] smpboot: CPU 7 is now offline
[ 174.629762] ACPI: Low-level resume complete
[ 174.629826] PM: Restoring platform NVS memory
[ 174.631504] Enabling non-boot CPUs ...
[ 174.631537] x86: Booting SMP configuration:
[ 174.631537] smpboot: Booting Node 0 Processor 1 APIC 0x2
[ 174.633106] CPU1 is up
[ 174.633124] smpboot: Booting Node 0 Processor 2 APIC 0x4
[ 174.634688] CPU2 is up
[ 174.634703] smpboot: Booting Node 0 Processor 3 APIC 0x6
[ 174.636267] CPU3 is up
[ 174.636283] smpboot: Booting Node 0 Processor 4 APIC 0x1
[ 174.636905] CPU4 is up
[ 174.636923] smpboot: Booting Node 0 Processor 5 APIC 0x3
[ 174.637440] CPU5 is up
[ 174.637455] smpboot: Booting Node 0 Processor 6 APIC 0x5
[ 174.637978] CPU6 is up
[ 174.637993] smpboot: Booting Node 0 Processor 7 APIC 0x7
[ 174.638516] CPU7 is up
[ 174.640493] ACPI: Waking up from system sleep state S3
[ 174.663892] sd 2:0:0:0: [sdc] Starting disk
[ 174.663895] sd 3:0:0:0: [sdd] Starting disk
[ 174.663919] sd 5:0:0:0: [sde] Starting disk
[ 174.663922] sd 1:0:0:0: [sdb] Starting disk
[ 174.663924] sd 0:0:0:0: [sda] Starting disk
[ 174.666992] parport_pc 00:01: activated
[ 174.669333] serial 00:02: activated
[ 174.976278] usb 1-2: reset high-speed USB device number 2 using xhci_hcd
[ 175.036148] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 175.036189] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 175.036219] ata6: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 175.037035] ata2.00: supports DRM functions and may not be fully accessible
[ 175.037584] ata6.00: configured for UDMA/133
[ 175.038123] ata2.00: supports DRM functions and may not be fully accessible
[ 175.038617] ata2.00: configured for UDMA/133
[ 175.039744] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 175.042896] ata1.00: configured for UDMA/133
[ 175.052977] ata5.00: configured for UDMA/133
[ 175.348392] acpi LNXPOWER:16: Turning OFF
[ 175.348643] acpi LNXPOWER:15: Turning OFF
[ 175.348889] acpi LNXPOWER:14: Turning OFF
[ 175.349134] acpi LNXPOWER:13: Turning OFF
[ 175.349378] acpi LNXPOWER:12: Turning OFF
[ 175.349620] acpi LNXPOWER:11: Turning OFF
[ 175.349863] acpi LNXPOWER:10: Turning OFF
[ 175.350107] acpi LNXPOWER:0f: Turning OFF
[ 175.350350] acpi LNXPOWER:0e: Turning OFF
[ 175.350592] acpi LNXPOWER:0d: Turning OFF
[ 175.350833] acpi LNXPOWER:0c: Turning OFF
[ 175.351075] acpi LNXPOWER:0b: Turning OFF
[ 175.351317] acpi LNXPOWER:0a: Turning OFF
[ 175.351548] acpi LNXPOWER:09: Turning OFF
[ 175.351592] acpi LNXPOWER:08: Turning OFF
[ 175.351636] acpi LNXPOWER:07: Turning OFF
[ 175.351681] acpi LNXPOWER:06: Turning OFF
[ 175.351724] acpi LNXPOWER:05: Turning OFF
[ 175.351768] acpi LNXPOWER:04: Turning OFF
[ 175.351812] acpi LNXPOWER:03: Turning OFF
[ 175.351858] OOM killer enabled.
[ 175.351859] Restarting tasks ...
[ 175.352050] pci_bus 0000:04: Allocating resources
[ 175.352055] pci 0000:03:00.0: bridge window [io 0x1000-0x0fff] to [bus 04] add_size 1000
[ 175.352057] pci 0000:03:00.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 04] add_size 200000 add_align 100000
[ 175.352058] pci 0000:03:00.0: bridge window [mem 0x00100000-0x000fffff] to [bus 04] add_size 200000 add_align 100000
[ 175.352062] pci 0000:03:00.0: BAR 14: no space for [mem size 0x00200000]
[ 175.352063] pci 0000:03:00.0: BAR 14: failed to assign [mem size 0x00200000]
[ 175.352064] pci 0000:03:00.0: BAR 15: no space for [mem size 0x00200000 64bit pref]
[ 175.352065] pci 0000:03:00.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]
[ 175.352066] pci 0000:03:00.0: BAR 13: no space for [io size 0x1000]
[ 175.352067] pci 0000:03:00.0: BAR 13: failed to assign [io size 0x1000]
[ 175.352069] pci 0000:03:00.0: BAR 14: no space for [mem size 0x00200000]
[ 175.352070] pci 0000:03:00.0: BAR 14: failed to assign [mem size 0x00200000]
[ 175.352071] pci 0000:03:00.0: BAR 15: no space for [mem size 0x00200000 64bit pref]
[ 175.352071] pci 0000:03:00.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref]
[ 175.352072] pci 0000:03:00.0: BAR 13: no space for [io size 0x1000]
[ 175.352073] pci 0000:03:00.0: BAR 13: failed to assign [io size 0x1000]
[ 175.352075] pci 0000:03:00.0: PCI bridge to [bus 04]
[ 175.359291] done.
[ 175.382910] PM: suspend exit
[ 176.186998] NVRM: GPU at PCI:0000:01:00: GPU-2c2cdfba-dee8-1360-7e8c-d109a289a6c1
[ 176.187001] NVRM: Xid (PCI:0000:01:00): 13, pid=1274, Graphics Exception: Shader Program Header 18 Error
[ 176.187004] NVRM: Xid (PCI:0000:01:00): 13, pid=1274, Graphics Exception: ESR 0x405840=0x82040000
[ 176.187007] NVRM: Xid (PCI:0000:01:00): 13, pid=1274, Graphics Exception: ESR 0x405848=0x80000000
[ 176.187159] NVRM: Xid (PCI:0000:01:00): 13, pid=5179, Graphics Exception: ChID 0010, Class 0000c197, Offset 00001944, Data 00000000
[ 176.215175] e1000e 0000:00:1f.6 eth0: NIC Link is Down
[ 176.215332] bridge0: port 1(eth0) entered disabled state
[ 176.218157] device eth0 left promiscuous mode
[ 176.218175] bridge0: port 1(eth0) entered disabled state
[ 176.415328] userif-10: sent link down event.
[ 176.415331] userif-10: sent link up event.
[ 179.646407] e1000e 0000:00:1f.6 eth0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 179.646465] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 179.677765] bridge0: port 1(eth0) entered blocking state
Thanks