Output of: echo start_from_here | sudo tee /dev/kmsg; systemctl suspend; sleep 30; sudo dmesg > dmesg.tmp

sus-resume_dmesg

[31908.042183] audit: type=1106 audit(1641815403.352:355): pid=24401 uid=1000 auid=1000 ses=17 msg='op=PAM:session_close grantors=pam_systemd_home,pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/0 res=success'
[31908.042269] audit: type=1104 audit(1641815403.352:356): pid=24401 uid=1000 auid=1000 ses=17 msg='op=PAM:setcred grantors=pam_faillock,pam_permit,pam_env,pam_faillock acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/0 res=success'
[31908.067899] PM: suspend entry (deep)
[31908.129553] Filesystems sync: 0.061 seconds
[31908.173700] Freezing user space processes ... (elapsed 0.001 seconds) done.
[31908.175195] OOM killer disabled.
[31908.175195] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[31908.176596] printk: Suspending console(s) (use no_console_suspend to debug)
[31908.176945] wlan0: deauthenticating from fc:3f:7c:29:e6:f8 by local choice (Reason: 3=DEAUTH_LEAVING)
[31908.213657] rtw_8821ce 0000:02:00.0: sta fc:3f:7c:29:e6:f8 with macid 0 left
[31908.214296] rtw_8821ce 0000:02:00.0: stop vif 28:39:26:70:6a:d9 on port 0
[31908.503805] ACPI: EC: interrupt blocked
[31908.611467] ACPI: PM: Preparing to enter system sleep state S3
[31908.612728] ACPI: EC: event blocked
[31908.612731] ACPI: EC: EC stopped
[31908.612732] ACPI: PM: Saving platform NVS memory
[31908.612856] Disabling non-boot CPUs ...
[31908.615385] smpboot: CPU 1 is now offline
[31908.619647] smpboot: CPU 2 is now offline
[31908.621392] smpboot: CPU 3 is now offline
[31908.623226] smpboot: CPU 4 is now offline
[31908.625008] smpboot: CPU 5 is now offline
[31908.626594] smpboot: CPU 6 is now offline
[31908.628192] smpboot: CPU 7 is now offline
[31908.631958] ACPI: PM: Low-level resume complete
[31908.632017] ACPI: EC: EC started
[31908.632018] ACPI: PM: Restoring platform NVS memory
[31908.632977] Enabling non-boot CPUs ...
[31908.633048] x86: Booting SMP configuration:
[31908.633049] smpboot: Booting Node 0 Processor 1 APIC 0x2
[31908.634296] CPU1 is up
[31908.634323] smpboot: Booting Node 0 Processor 2 APIC 0x4
[31908.635034] CPU2 is up
[31908.635061] smpboot: Booting Node 0 Processor 3 APIC 0x6
[31908.635753] CPU3 is up
[31908.635779] smpboot: Booting Node 0 Processor 4 APIC 0x1
[31908.636594] CPU4 is up
[31908.636626] smpboot: Booting Node 0 Processor 5 APIC 0x3
[31908.637443] CPU5 is up
[31908.637470] smpboot: Booting Node 0 Processor 6 APIC 0x5
[31908.638271] CPU6 is up
[31908.638296] smpboot: Booting Node 0 Processor 7 APIC 0x7
[31908.639150] CPU7 is up
[31908.642626] ACPI: PM: Waking up from system sleep state S3
[31908.645379] ACPI: EC: interrupt unblocked
[31909.087608] nvidia 0000:01:00.0: Enabling HDA controller
[31909.089366] ACPI: EC: event unblocked
[31909.092875] i915 0000:00:02.0: [drm] [ENCODER:94:DDI A/PHY A] is disabled/in DSI mode with an ungated DDI clock, gate it
[31909.092886] i915 0000:00:02.0: [drm] [ENCODER:102:DDI B/PHY B] is disabled/in DSI mode with an ungated DDI clock, gate it
[31909.102185] nvme nvme0: 8/0/0 default/read/poll queues
[31909.394486] usb 1-10: reset full-speed USB device number 4 using xhci_hcd
[31909.405112] ata1: SATA link down (SStatus 4 SControl 300)
[31909.568944] rtw_8821ce 0000:02:00.0: start vif 28:39:26:70:6a:d9 on port 0
[31909.657859] usb 1-7: reset high-speed USB device number 3 using xhci_hcd
[31909.818649] usb 1-7: restoring control 00000000-0000-0000-0000-000000000101/10/5
[31909.818659] usb 1-7: restoring control 00000000-0000-0000-0000-000000000101/12/11
[31909.898450] OOM killer enabled.
[31909.898454] Restarting tasks ... 
[31909.898560] mei_hdcp 0000:00:16.0-b638ab7e-94e2-4ea2-a552-d1c54b627f04: bound 0000:00:02.0 (ops i915_hdcp_component_ops [i915])
[31909.899516] done.
[31909.933864] audit: type=1130 audit(1641815413.296:357): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-rfkill comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[31910.003983] PM: suspend exit
[31910.005536] Bluetooth: hci0: RTL: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[31910.006503] Bluetooth: hci0: RTL: rom_version status=0 version=1
[31910.006516] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_fw.bin
[31910.006655] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_config.bin
[31910.006723] Bluetooth: hci0: RTL: cfg_sz 10, total sz 31990
[31910.030852] audit: type=1130 audit(1641815413.396:358): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-suspend comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[31910.030872] audit: type=1131 audit(1641815413.396:359): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-suspend comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[31910.461628] Bluetooth: hci0: RTL: fw version 0x829a7644
[31912.085677] wlan0: authenticate with fc:3f:7c:29:e6:f8
[31912.587402] wlan0: send auth to fc:3f:7c:29:e6:f8 (try 1/3)
[31912.592608] wlan0: authenticated
[31912.594114] wlan0: associate with fc:3f:7c:29:e6:f8 (try 1/3)
[31912.600155] wlan0: RX AssocResp from fc:3f:7c:29:e6:f8 (capab=0x411 status=0 aid=4)
[31912.600200] rtw_8821ce 0000:02:00.0: sta fc:3f:7c:29:e6:f8 joined with macid 0
[31912.600441] wlan0: associated
[31912.655548] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[31913.160817] rtw_8821ce 0000:02:00.0: failed to get tx report from firmware
[31914.941092] audit: type=1131 audit(1641815419.033:360): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-rfkill comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[31938.081132] audit: type=1101 audit(1641815442.174:361): pid=24478 uid=1000 auid=1000 ses=17 msg='op=PAM:accounting grantors=pam_unix,pam_permit,pam_time acct="matt" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/0 res=success'
[31938.082100] audit: type=1110 audit(1641815442.174:362): pid=24478 uid=1000 auid=1000 ses=17 msg='op=PAM:setcred grantors=pam_faillock,pam_permit,pam_env,pam_faillock acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/0 res=success'
[31938.085812] audit: type=1105 audit(1641815442.177:363): pid=24478 uid=1000 auid=1000 ses=17 msg='op=PAM:session_open grantors=pam_systemd_home,pam_limits,pam_unix,pam_permit acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/0 res=success'

N.B. the "start_from_here" message was used to locate the relevant part of the dmesg log.