sleep and hibernate after awake between daylight saving time and normal time

Bug #157936 reported by Fabus
2
Affects Status Importance Assigned to Milestone
acpi-support (Ubuntu)
Fix Released
Undecided
Unassigned

Bug Description

I hibernated my computer yesterday and then put it on again at 2:50am daylight saving time, before daylight time change. after that the computer immediately went to sleep and after i woke him up to another hibernation. after that i could use the computer but the time was not changed at 3:00am even though I synchronised.
I think the timers for the sleep and hibernate should consider the daylight saving time.

Related branches

Revision history for this message
Daniel T Chen (crimsun) wrote :

Not reproducible in intrepid with the most recent DST changeover in USA.

Revision history for this message
Scott James Remnant (Canonical) (canonical-scott) wrote :

Committed changes to stop synchronising the system and hardware clocks over a suspend/resume cycle, which will be released with acpi-support 0.120 in jaunty.

The rationale is that the kernel records the delta between the two clocks on suspend, and resets the system clock on resume based on this delta. The mix of the two can lead to strange issues such as you've seen.

We now just let the kernel do its thing.

Changed in acpi-support:
status: New → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package acpi-support - 0.120

---------------
acpi-support (0.120) jaunty; urgency=low

  [ Alexander Solodukhin ]
  * Correct suspend.d/55-down-interfaces.sh to point to
    /var/run/network/ifstate rather than /etc/network/run/ifstate.
    LP: #295544.

  [ Martin Pitt ]
  * Drop lib/*.config: I committed all sleep quirks to hal-info now
    (upstream, and in Jaunty). The ACPI_SLEEP whitelisting, as well as
    acpi-support's suspend/resume handling itself is not used by
    default any more, and almost all laptops support suspend/resume
    nowadays, so keeping a whitelist is the wrong approach.
    LP: #37303, #44781.
  * lib/device-funcs: Drop reading of .config files.
  * Drop vbesave, resume.d/17-video-restore.sh, suspend.d/
    80-video-pci-state.sh, suspend.d/80-video-vesa-state.sh:
    pm-utils and hal-info handle VBE/PCI status quirks.

  [ Scott James Remnant ]
  * suspend.d/88-time.sh, resume.d/50-time.sh: Remove since the kernel
    keeps the system clock in sync with the hardware clock over a
    suspend/resume cycle. LP: #312486, #218120, #158358, #157936.
  * debian/preinst: Remove on upgrade.
  * Remove the toshiba_acpi.modprobe file; this sets a kernel option that's
    been the default for ages.

 -- Scott James Remnant <email address hidden> Tue, 03 Mar 2009 17:29:01 +0000

Changed in acpi-support:
status: Fix Committed → Fix Released
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