Cannot suspend Inspiron 7306 with kernel 5.11

On my new notebook, I find that when I try to suspend it (close lid or via systemctl), that it only suspends for a short time or not at all, then wakes up and continues.

It only happens with kernel versions 5.11.x (Arch Linux distro kernels). With 5.10.x it works as expected.

I can't find anything enlightening in the syslog (see below).

Any ideas how to debug this?

Code:Apr 11 17:54:33 systemd-logind[798]: Lid closed.
Apr 11 17:54:38 systemd[1]: Starting Network Manager Script Dispatcher Service...
... NetworkManager/Wifi cleanup stuff ...
Apr 11 17:54:38 systemd[1]: Started Network Manager Script Dispatcher Service.
... NetworkManager/Wifi cleanup stuff ...
Apr 11 17:54:38 systemd[1]: Reached target Sleep.
Apr 11 17:54:38 systemd[1]: Starting Suspend...
Apr 11 17:54:39 systemd-sleep[3517]: Suspending system...
Apr 11 17:54:39 kernel: PM: suspend entry (s2idle)
Apr 11 17:54:39 kernel: Filesystems sync: 0.003 seconds
Apr 11 17:55:09 kernel: Freezing user space processes ... (elapsed 0.002 seconds) done.
Apr 11 17:55:09 kernel: OOM killer disabled.
Apr 11 17:55:09 kernel: Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Apr 11 17:55:09 kernel: printk: Suspending console(s) (use no_console_suspend to debug)
Apr 11 17:55:09 kernel: ACPI: EC: interrupt blocked
Apr 11 17:55:09 kernel: ACPI: EC: interrupt unblocked
Apr 11 17:55:09 kernel: OOM killer enabled.
Apr 11 17:55:09 kernel: Restarting tasks ...