Author Topic: Solved - Really Strange - Time always lag behind 4 minutes after reboot?  (Read 792 times)

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Offline cejobaTopic starter

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Hi I have a laptop, it's a Chromebook, but running MrChromebox's full UEFI and official Debian.

The problem is, no matter what time I set manually, it will always be 4 minutes slower than real world time after a reboot.

Anyone have any ideas why/how?
« Last Edit: October 08, 2022, 01:20:08 pm by cejoba »
 

Online ataradov

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Re: Really Strange - Time always lag behind 4 minutes after reboot?
« Reply #1 on: October 07, 2022, 06:36:44 pm »
I would look into NTP server settings. It is possible that on boot it gets time from some strange NTP server that is off by 4 minutes.

Try to boot without any network connectivity and see if this still happens.
Alex
 
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Offline golden_labels

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Re: Really Strange - Time always lag behind 4 minutes after reboot?
« Reply #2 on: October 07, 2022, 07:27:48 pm »
When you say “time I set manually”, which clock do you mean? The actual hardware (RTC) clock or the ephemeral system clock? If only the latter, it’s gone as soon as the kernel stops running. Upon boot it is set from the hardware clock. So you must first have a properly set RTC: either in your firmware setup or using hwclock. Note that it may be in either UTC or your local time: I do not know which is suggested/used by Debian.
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Offline cejobaTopic starter

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Re: Solved - Really Strange - Time always lag behind 4 minutes after reboot?
« Reply #3 on: October 08, 2022, 01:24:54 pm »
Thank you everyone, solved!
It's the reason guessed by golden_labels.
I actually guessed both possibility before, but never thought Linux would indeed seperate HW RTC from system clock...
Documents says it would automatically write system clock to HW RTC when shutting down, but for unknown reason, mine doesn't.
 

Online Bud

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Re: Solved - Really Strange - Time always lag behind 4 minutes after reboot?
« Reply #4 on: October 08, 2022, 02:36:59 pm »
Try replacing the computer battery, maybe it is marginal.
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