Re: Changes in sleep mode, on x86 PC

Pavel Machek
2016-03-29T14:24:05Z

On Tue 2016-03-29 15:06:36, Rafael J. Wysocki wrote:
> On Monday, March 28, 2016 11:20:12 PM Pavel Machek wrote:
> > Hi!
> >
> > Few releases ago, I could wake up PC from S3 sleep by hitting any
> > key. That ceased to work some time before, keyboard would just light a
> > NUM lock LED when I hit a key (4.5). Now PC seems to be sleeping (in
> > S3) with NUM lock LED on (4.6-rc0).
> >
> > Any idea what is going on there? Does it happen for you, too? What is
> > the expected behaviour?
> >
> > Debian 8.3, with MATE desktop, I just hit the "moon" key to make it
> > sleep. Keyboard is on USB.
>
> That's rather important.
>
> Clearly, something in the USB HID land has changed lately.
>
> The expected behavior depends on whether or not the keyboard itself and the
> USB controller are both enabled to wake up. If they are, I'd expect any
> key press to generate a wakeup event.

Is there anything in /sys I should check?

pavel@amd:/sys/class/input/input43$ ls
capabilities id input43::scrolllock phys
subsystem
device input43::capslock modalias power
uevent
event8 input43::numlock name properties uniq
pavel@amd:/sys/class/input/input43$ cat power/
async runtime_active_kids runtime_status
autosuspend_delay_ms runtime_active_time
runtime_suspended_time
control runtime_enabled runtime_usage
pavel@amd:/sys/class/input/input43$ cat power/

Ok, this is slightly weird, but it seems to be just multimedia keys
having separate device:

pavel@amd:/sys/class/input$ grep . input4*/name
input43/name:Chicony USB Keyboard
input44/name:Chicony USB Keyboard

pavel@amd:/sys/class/input$ ls input43/
capabilities id input43::scrolllock phys
subsystem
device input43::capslock modalias power
uevent
event8 input43::numlock name properties uniq
pavel@amd:/sys/class/input$ ls input44
capabilities event9 modalias phys properties uevent
device id name power subsystem uniq

Thanks,
Pavel
--
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