I have a machine whose RTC clock is drifting significantly and it is
often suspended for several days. I run NTP so the drift I see when
I wake the machine up gets fixed by "stepping" the clock after a while,
but that can take a while and I'd like to improve this
intermediate situation.
The /etc/adjtime is supposed to be there for such purposes but it seems
to be mostly unused: I assume its "UTC" setting is respected but the
first and second lines indicate it has not been updated since 2015
(i.e. when that Debian install was used in another machine).
I have two questions:
- How can I get Debian to use this file when waking up the machine from
suspend (which would presumably change the file by updating the first
line's "last adjust time")?
- How can I get `ntpd` to adjust the first line's "drift factor" when it
steps the clock?
The second question is less important (I can write the drift factor by
hand, e.g. in case `ntpd` is not being told when the clock is (re)set
based on the RTC, making it impossible for it to compute a drift factor).
Stefan
