(In reply to Rafael J. Wysocki from comment #97)
> (In reply to Patrik Kullman from comment #96)
> > Actually it doesn't seem to suspend properly, I get a lot of these while
> > suspended:
> 
> Well, that's how the platform works, unfortunately.
> 
> The EC needs to be enabled to wake up the system for the power button wakeup
> to work, but if the EC is enabled to wake up the system, it will wake it up
> every once a while, so either-or.

"every once a while" being every 0.7 - 1.7 seconds? :)
And I assume that it's no difference between the power button or the lid opening? (Looking for workarounds..)

> I would argue that this is an EC firmware bug on the XPS13 9365.

That it happens too frequently or at all?

> > And on resume I get a, most likely completely unrelated and purely
> cosmetic:
> > 
> > [49569.968486] intel-vbtn INT33D6:00: unknown event index 0xcd
> 
> I'm quite confident that this is not the event that woke you up, but can you
> paste more lines from dmesg around this for more context?

Here's a complete suspend/resume:

[  432.314171] wlp60s0: deauthenticating from 08:60:6e:cb:73:18 by local choice (Reason: 3=DEAUTH_LEAVING)
[  432.332499] wlp60s0: failed to remove key (2, ff:ff:ff:ff:ff:ff) from hardware (-22)
[  432.344754] IPv6: ADDRCONF(NETDEV_UP): wlp60s0: link is not ready
[  432.367450] ACPI Error: Thread 334907008 cannot release Mutex [PATM] acquired by thread 196679552 (20170531/exmutex-416)
[  432.367461] ACPI Error: Method parse/execution failed \_SB.PCI0.LPCB.ECDV._Q66, AE_AML_NOT_OWNER (20170531/psparse-550)
[  433.755730] PM: Syncing filesystems ... done.
[  433.759972] PM: Preparing system for sleep (freeze)
[  433.761479] Freezing user space processes ... (elapsed 0.002 seconds) done.
[  433.764445] OOM killer disabled.
[  433.764446] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[  433.766170] PM: Suspending system (freeze)
[  433.766172] Suspending console(s) (use no_console_suspend to debug)
[  434.196204] psmouse serio1: Failed to disable mouse on isa0060/serio1
[  435.796225] PM: suspend of devices complete after 1815.500 msecs
[  435.816250] PM: late suspend of devices complete after 20.016 msecs
[  435.864129] PM: noirq suspend of devices complete after 45.221 msecs
[  435.864133] PM: suspend-to-idle
[  436.223170] Suspended for 0.049 seconds
[  436.276728] PM: noirq resume of devices complete after 53.389 msecs
[  436.375016] PM: noirq suspend of devices complete after 92.109 msecs
[  436.431696] PM: noirq resume of devices complete after 56.675 msecs
[  436.491007] PM: noirq suspend of devices complete after 59.227 msecs
[  437.568679] Suspended for 0.732 seconds
[  437.622933] PM: noirq resume of devices complete after 54.114 msecs
[  437.720561] PM: noirq suspend of devices complete after 92.110 msecs
[  437.774979] PM: noirq resume of devices complete after 54.411 msecs
[  437.832567] PM: noirq suspend of devices complete after 57.513 msecs
[  438.908663] Suspended for 0.735 seconds
[  438.962854] PM: noirq resume of devices complete after 54.043 msecs
[  439.060527] PM: noirq suspend of devices complete after 92.103 msecs
[  439.114780] PM: noirq resume of devices complete after 54.247 msecs
[  439.172531] PM: noirq suspend of devices complete after 57.676 msecs
[  440.263427] Suspended for 1.736 seconds
[  440.317668] PM: noirq resume of devices complete after 54.102 msecs
[  440.415294] PM: noirq suspend of devices complete after 92.101 msecs
[  440.469416] PM: noirq resume of devices complete after 54.116 msecs
[  440.527303] PM: noirq suspend of devices complete after 57.812 msecs
[  441.594159] Suspended for 0.735 seconds
[  441.648044] PM: noirq resume of devices complete after 53.738 msecs
[  441.742030] PM: noirq suspend of devices complete after 88.107 msecs
[  441.796508] PM: noirq resume of devices complete after 54.472 msecs
[  441.854034] PM: noirq suspend of devices complete after 57.451 msecs
[  442.038178] PM: noirq resume of devices complete after 53.834 msecs
[  442.140105] PM: noirq suspend of devices complete after 96.037 msecs
[  442.216149] PM: noirq resume of devices complete after 76.036 msecs
[  442.216225] PM: resume from suspend-to-idle
[  442.280660] PM: early resume of devices complete after 62.146 msecs
[  442.286025] Suspended for 0.438 seconds
[  442.460394] PM: resume of devices complete after 179.731 msecs
[  442.460864] PM: Finishing wakeup.
[  442.460865] OOM killer enabled.
[  442.460866] Restarting tasks ... done.
[  442.552172] thermal thermal_zone11: failed to read out thermal zone (-5)
[  442.553302] [drm] RC6 on
[  442.630048] IPv6: ADDRCONF(NETDEV_UP): wlp60s0: link is not ready
[  442.690004] intel-vbtn INT33D6:00: unknown event index 0xcd
[  442.841939] ACPI Error: Thread 334907008 cannot release Mutex [PATM] acquired by thread 196679552 (20170531/exmutex-416)
[  442.841945] ACPI Error: Method parse/execution failed \_SB.PCI0.LPCB.ECDV._Q66, AE_AML_NOT_OWNER (20170531/psparse-550)
[  442.896705] IPv6: ADDRCONF(NETDEV_UP): wlp60s0: link is not ready
[  443.148883] IPv6: ADDRCONF(NETDEV_UP): wlp60s0: link is not ready
[  443.240308] IPv6: ADDRCONF(NETDEV_UP): wlp60s0: link is not ready
[  446.710455] IPv6: ADDRCONF(NETDEV_UP): wlp60s0: link is not ready
[  446.754511] wlp60s0: authenticate with 08:60:6e:cb:73:1c
[  446.763516] wlp60s0: send auth to 08:60:6e:cb:73:1c (try 1/3)
[  446.769219] wlp60s0: authenticated
[  446.771978] wlp60s0: associate with 08:60:6e:cb:73:1c (try 1/3)
[  446.772923] wlp60s0: RX AssocResp from 08:60:6e:cb:73:1c (capab=0x11 status=0 aid=2)
[  446.774490] wlp60s0: associated
[  446.774549] IPv6: ADDRCONF(NETDEV_CHANGE): wlp60s0: link becomes ready
[  446.795836] wlp60s0: Limiting TX power to 23 (23 - 0) dBm as advertised by 08:60:6e:cb:73:1c