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Surface Pro 8 loses system time on power off · Issue #1497 · linux-surface/linux-surface · GitHub

Surface Pro 8 loses system time on power off #1497

Description

Whenever I shut down my surface pro, after restarting the system clock is off by about 1 hour and 15 minutes. The time gets adjusted to the correct time as soon as the laptop connects to a time server.

I've already tried troubleshooting using various suggestions online.

In this thread I heard that the Surface Pro 7 has the same issue so I thought I'd file a bug report here after searching (and not finding anything) for this issue.

Here the output of timedatectl:

               Local time: Thu 2024-07-18 10:54:09 JST
           Universal time: Thu 2024-07-18 01:54:09 UTC
                 RTC time: Thu 2024-07-18 01:54:09
                Time zone: Asia/Tokyo (JST, +0900)
System clock synchronized: yes
              NTP service: active
          RTC in local TZ: no

and from hwclock:

hwclock from util-linux 2.40.2
System Time: 1721267821.355448
Trying to open: /dev/rtc0
Using the rtc interface to the clock.
Last drift adjustment done at 1705941311 seconds after 1969
Last calibration done at 1705941311 seconds after 1969
Hardware clock is on UTC time
Assuming hardware clock is kept in UTC time.
Waiting for clock tick...
...got clock tick
Time read from Hardware Clock: 2024/07/18 01:57:02
Hw clock time : 2024/07/18 01:57:02 = 1721267822 seconds since 1969
Time since last adjustment is 15326511 seconds
Calculated Hardware Clock drift is 0.000000 seconds
2024-07-18 10:57:01.360799+09:00

Here is also what is saved in /etc/adjtime:

0.000000 1705941311 0.000000
1705941311
UTC

Environment

  • Hardware model: Surface Pro 8
  • Kernel version: any recent
  • Distribution: any Arch (at least)

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