Hi benx0aoa,
We tried on JP-4.4.1 (r32.4.4), there are no issue.
$ sudo rtcwake -m mem -s 60
rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Thu Nov 19 02:54:44 2020
—> After 60 seconds, rtcwake.
Hi benx0aoa,
We tried on JP-4.4.1 (r32.4.4), there are no issue.
$ sudo rtcwake -m mem -s 60
rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Thu Nov 19 02:54:44 2020
—> After 60 seconds, rtcwake.