Re: Fan not working after hibernate but ok after s2ram?

Re: Fan not working after hibernate but ok after s2ram?

[Rafael J. Wysocki]

Greetings,

On Friday, 12 October 2007 23:30, Romano Giannetti wrote:
> Hi,
> 
> 	I have a strange problem. I am running 2.6.23 on a toshiba satellite
> 2.6.23, I use s2ram to suspend and echo disk > ... to hibernate. System
> is ubuntu Feisty.
> 
> 	Now, both s2ram -f -p -m and hibernte works ok, but after resuming from
> hibernation, the fan of the laptop seems never to start again (it is ok
> after resuming from s2ram). I rebooted the system now (it arrived at 80
> celsius without starting the fan, normally it starts at 60) because I do
> not want to have a fried laptop...

Sure.

> 	Any hints? I tried to rmmod/insmod again fan.ko but it didn't help.

You can try to reload the processor modules after the resume, if possible.

Anyway, this seems to be an ACPI-related issue, so I'm CCing linux-acpi and
Alex.

Did it work correctly with any of the previous kernels?

Greetings,
Rafael

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Re: Fan not working after hibernate but ok after s2ram?

[Alexey Starikovskiy]

Rafael J. Wysocki wrote:
> Greetings,
> 
> On Friday, 12 October 2007 23:30, Romano Giannetti wrote:
>> Hi,
>>
>> 	I have a strange problem. I am running 2.6.23 on a toshiba satellite
>> 2.6.23, I use s2ram to suspend and echo disk > ... to hibernate. System
>> is ubuntu Feisty.
>>
>> 	Now, both s2ram -f -p -m and hibernte works ok, but after resuming from
>> hibernation, the fan of the laptop seems never to start again (it is ok
>> after resuming from s2ram). I rebooted the system now (it arrived at 80
>> celsius without starting the fan, normally it starts at 60) because I do
>> not want to have a fried laptop...
> 
> Sure.
> 
>> 	Any hints? I tried to rmmod/insmod again fan.ko but it didn't help.
There is 3 patch series in linux-acpi mail list, which might be related:
[PATCH 1/3] ACPI: power: don't cache power resource state
[PATCH 2/3] ACPI: Fan: fan device does not need own structure
[PATCH 3/3] ACPI: Fan: Drop force_power_state acpi_device option

Alex.


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Re: [Suspend-devel] Fan not working after hibernate but ok after s2ram?

[Rafael J. Wysocki]

On Saturday, 13 October 2007 00:38, Alexey Starikovskiy wrote:
> Rafael J. Wysocki wrote:
> > Greetings,
> > 
> > On Friday, 12 October 2007 23:30, Romano Giannetti wrote:
> >> Hi,
> >>
> >> 	I have a strange problem. I am running 2.6.23 on a toshiba satellite
> >> 2.6.23, I use s2ram to suspend and echo disk > ... to hibernate. System
> >> is ubuntu Feisty.
> >>
> >> 	Now, both s2ram -f -p -m and hibernte works ok, but after resuming from
> >> hibernation, the fan of the laptop seems never to start again (it is ok
> >> after resuming from s2ram). I rebooted the system now (it arrived at 80
> >> celsius without starting the fan, normally it starts at 60) because I do
> >> not want to have a fried laptop...
> > 
> > Sure.
> > 
> >> 	Any hints? I tried to rmmod/insmod again fan.ko but it didn't help.
> There is 3 patch series in linux-acpi mail list, which might be related:
> [PATCH 1/3] ACPI: power: don't cache power resource state
> [PATCH 2/3] ACPI: Fan: fan device does not need own structure
> [PATCH 3/3] ACPI: Fan: Drop force_power_state acpi_device option

Do they apply on top of vanilla 2.6.23?

Re: [Suspend-devel] Fan not working after hibernate but ok after s2ram?

[Alexey Starikovskiy]

Rafael J. Wysocki wrote:
> On Saturday, 13 October 2007 00:38, Alexey Starikovskiy wrote:
>> Rafael J. Wysocki wrote:
>>> Greetings,
>>>
>>> On Friday, 12 October 2007 23:30, Romano Giannetti wrote:
>>>> Hi,
>>>>
>>>> 	I have a strange problem. I am running 2.6.23 on a toshiba satellite
>>>> 2.6.23, I use s2ram to suspend and echo disk > ... to hibernate. System
>>>> is ubuntu Feisty.
>>>>
>>>> 	Now, both s2ram -f -p -m and hibernte works ok, but after resuming from
>>>> hibernation, the fan of the laptop seems never to start again (it is ok
>>>> after resuming from s2ram). I rebooted the system now (it arrived at 80
>>>> celsius without starting the fan, normally it starts at 60) because I do
>>>> not want to have a fried laptop...
>>> Sure.
>>>
>>>> 	Any hints? I tried to rmmod/insmod again fan.ko but it didn't help.
>> There is 3 patch series in linux-acpi mail list, which might be related:
>> [PATCH 1/3] ACPI: power: don't cache power resource state
>> [PATCH 2/3] ACPI: Fan: fan device does not need own structure
>> [PATCH 3/3] ACPI: Fan: Drop force_power_state acpi_device option
> 
> Do they apply on top of vanilla 2.6.23?
They do.

Re: Fan not working after hibernate but ok after s2ram?

[Rafael J. Wysocki]

On Saturday, 13 October 2007 11:58, Alexey Starikovskiy wrote:
> Rafael J. Wysocki wrote:
> > On Saturday, 13 October 2007 00:38, Alexey Starikovskiy wrote:
> >> Rafael J. Wysocki wrote:
> >>> Greetings,
> >>>
> >>> On Friday, 12 October 2007 23:30, Romano Giannetti wrote:
> >>>> Hi,
> >>>>
> >>>> 	I have a strange problem. I am running 2.6.23 on a toshiba satellite
> >>>> 2.6.23, I use s2ram to suspend and echo disk > ... to hibernate. System
> >>>> is ubuntu Feisty.
> >>>>
> >>>> 	Now, both s2ram -f -p -m and hibernte works ok, but after resuming from
> >>>> hibernation, the fan of the laptop seems never to start again (it is ok
> >>>> after resuming from s2ram). I rebooted the system now (it arrived at 80
> >>>> celsius without starting the fan, normally it starts at 60) because I do
> >>>> not want to have a fried laptop...
> >>> Sure.
> >>>
> >>>> 	Any hints? I tried to rmmod/insmod again fan.ko but it didn't help.
> >> There is 3 patch series in linux-acpi mail list, which might be related:
> >> [PATCH 1/3] ACPI: power: don't cache power resource state
> >> [PATCH 2/3] ACPI: Fan: fan device does not need own structure
> >> [PATCH 3/3] ACPI: Fan: Drop force_power_state acpi_device option
> > 
> > Do they apply on top of vanilla 2.6.23?
> They do.

OK, thanks.

Romano, the patches are here:

http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/38-ACPI-power-don_t-cache-power-resource-state.patch
http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/39-ACPI-Fan-fan-device-does-not-need-own-structure.patch
http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/40-Fan-Drop-force_power_state-acpi_device-option.patch

Can you please apply them on top of 2.6.23 and see if that helps?

Greetings,
Rafael

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Re: [Suspend-devel] Fan not working after hibernate but ok afters2ram?

[Romano Giannetti]

On Sat, 2007-10-13 at 12:34 +0200, Rafael J. Wysocki wrote:
> O
> OK, thanks.
>
> Romano, the patches are here:
>
> http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/38-ACPI-power-don_t-cache-power-resource-state.patch
> http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/39-ACPI-Fan-fan-device-does-not-need-own-structure.patch
> http://www.sisk.pl/kernel/hibernation_and_suspend/2.6.23/patches/40-Fan-Drop-force_power_state-acpi_device-option.patch
>
> Can you please apply them on top of 2.6.23 and see if that helps?

Will try as soon as I have half an hour. Unfortunately, I have to
prepare a lt of classes for tomorrow; I'll see if I can find a little
spot... thanks so much. I will be back asap.

Romano



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