On Ubuntu 19:10 linux 5.3.0-46 (resume bad):
ferry@chromium:~$ cat /sys/power/mem_sleep
s2idle [deep]
root@chromium:~# rtcwake -m mem -s 30

After 30 sec takes me to boot screen.

root@chromium:~# echo s2idle > /sys/power/mem_sleep
root@chromium:~# rtcwake -m freeze -s 30
rtcwake: aangenomen wordt dat de hardwareklok UTC bevat...
rtcwake: ontwaking uit 'freeze' via /dev/rtc0 op Tue Apr 14 19:43:43 2020

(wakes)

journalctl -b -e:
apr 14 21:43:46 chromium kernel: PM: suspend entry (s2idle)
apr 14 21:43:46 chromium kernel: Filesystems sync: 0.000 seconds
apr 14 21:43:46 chromium kernel: Freezing user space processes ... (elapsed 
0.002 seconds) done.
apr 14 21:43:46 chromium kernel: OOM killer disabled.
apr 14 21:43:46 chromium kernel: Freezing remaining freezable tasks ... 
(elapsed 0.001 seconds) done.
apr 14 21:43:46 chromium kernel: printk: Suspending console(s) (use 
no_console_suspend to debug)
apr 14 21:43:46 chromium kernel: sd 0:0:0:0: [sda] Synchronizing SCSI cache
apr 14 21:43:46 chromium kernel: sd 0:0:0:0: [sda] Stopping disk
apr 14 21:43:46 chromium kernel: ACPI: EC: interrupt blocked
apr 14 21:43:46 chromium kernel: ACPI: EC: interrupt unblocked
apr 14 21:43:46 chromium kernel: ath: phy0: ASPM enabled: 0x43
apr 14 21:43:46 chromium kernel: sd 0:0:0:0: [sda] Starting disk
apr 14 21:43:46 chromium kernel: atmel_mxt_ts 1-004a: Resetting device
apr 14 21:43:46 chromium kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 
SControl 300)
apr 14 21:43:46 chromium kernel: ata1.00: configured for UDMA/100
apr 14 21:43:46 chromium kernel: atmel_mxt_ts 1-004a: Wait for completion timed 
out.
apr 14 21:43:46 chromium kernel: OOM killer enabled.
apr 14 21:43:46 chromium kernel: Restarting tasks ... done.
apr 14 21:43:46 chromium kernel: PM: suspend exit

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https://bugs.launchpad.net/bugs/1848771

Title:
  Reboot after resume from suspend (deep)

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