* Possible workaround for buggy S5
@ 2014-02-12 14:31 Phillip Susi
2014-02-13 2:17 ` Aaron Lu
0 siblings, 1 reply; 2+ messages in thread
From: Phillip Susi @ 2014-02-12 14:31 UTC (permalink / raw)
To: linux-acpi
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A user has reported in debian bug #694926 that their laptop battery
discharges rapidly when they shutdown, unless they disable hwclock
- --systohc in the shutdown scripts. I am not sure why that triggers
it, but I can only assume that their acpi firmware is buggy and
remaining in standby to allow for wakeups.
Is there a way to bypass the acpi firmware S5 transition and force the
system to truly power off as a workaround?
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Possible workaround for buggy S5
2014-02-12 14:31 Possible workaround for buggy S5 Phillip Susi
@ 2014-02-13 2:17 ` Aaron Lu
0 siblings, 0 replies; 2+ messages in thread
From: Aaron Lu @ 2014-02-13 2:17 UTC (permalink / raw)
To: Phillip Susi; +Cc: linux-acpi, François Boisson
On 02/12/2014 10:31 PM, Phillip Susi wrote:
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> Hash: SHA1
>
> A user has reported in debian bug #694926 that their laptop battery
> discharges rapidly when they shutdown, unless they disable hwclock
> - --systohc in the shutdown scripts. I am not sure why that triggers
> it, but I can only assume that their acpi firmware is buggy and
> remaining in standby to allow for wakeups.
>
> Is there a way to bypass the acpi firmware S5 transition and force the
> system to truly power off as a workaround?
No idea about this. Long time ago, François Boisson reported a similar
issue on kernel bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=47811
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2014-02-12 14:31 Possible workaround for buggy S5 Phillip Susi
2014-02-13 2:17 ` Aaron Lu
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