Re: Modern Suspend on Dell Latitude 5285 does not resume

[Rafael J. Wysocki]

On Thu, Jul 20, 2017 at 8:24 PM, Nico Schottelius
<nico.schottelius@xxxxxxxxxxx> wrote:
>
> Hello,
>
> following up the recent patch [0] to enable modern suspend on Dell notebooks, I
> can report that this patch does *not* fix the situation on Dell Latitude
> 5285. I have tested with v4.12-10845-g74cbd96 and when closing the "lid"
> or triggering sleep by echo mem > /sys/power/state, the system suspends,
> but never wakes up again. Trying to resume with the power button does
> not have any affect, as it is the case with 4.12.1.
>
> A long power button press to forcefully shutdown the system is
> necessary, at which point the notebook responds with blinking
> the power LED (3x red, 5x white), which seems not to be defined in
> the user manual.
>
> Is there anything I can do to test what is going on?

Have you tried "echo freeze > /sys/power/state" instead of "mem"?

Thanks,
Rafael