[arch-general] Hibernation not working

[Peter Nabbefeld]

Am 31.12.2016 um 13:42 schrieb Bruno Pagani:
> Hi,
>
> Le 31 décembre 2016 07:38:05 GMT+01:00, Peter Nabbefeld <peter.nabbefeld at gmx.de> a écrit :
>>
>> Hello,
>>
>> since some time, hibernation does not work, dmesg contains following
>> messages:
>>
>> [  738.404244] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type
>>
>> mismatch - Found [Buffer], ACPI requires [Package]
>> (20160422/nsarguments-95)
>> [  738.404353] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
>> [  738.404356] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type
>>
>> mismatch - Found [Buffer], ACPI requires [Package]
>> (20160422/nsarguments-95)
>>
>> Some time ago, when I closed my laptop, Linux automatically hibernated,
>>
>> now it does not. As my laptop becomes really warm and I don't want to
>> stress my display, I'm using this rarely, so I cannot tell, since when
>> hibernation doesn't work :-/
>>
>> Kind regartds
>> Peter
>
> These messages are related to Optimus system (Nvidia implementation of dGPU power management handling is not compliant with ACPI specs). So that’s not related to your hibernation issue.
>
Hm, I'm using the Nouveau driver - is this message hardware-related?


> Regarding this one, I’d like a precision that might be useful: is this about hibernation or suspend?
>
Hm, I'm usually not distinguishing those. As System doesn't need much 
time to wake-up, I'd assume it just suspends to RAM - but as computers 
are getting more power, this is probably not really visible. How can I 
detect, which mode it had to switch to?


> Other than that, what DE do you use if applicable? What does handle lid close event? I had the issue that the lid close event wasn’t handled because KDE PM daemon isn’t inhibiting systemd one correctly, and once fixed it worked again.
>
Using XFCE. Don't know, what handles the lid close evenet - how can I 
find that out?

Kind regards
Peter