> I got a response back that confirmed that this machine only is supported > with CS/MS. I would not expect S3 to work properly. Thanks for the confirmation, that's what I expected following the feedback on other recent Dell machines. > Even if S3 is part of the ACPI namespace, the behavior that Windows follows > is that S3 is not offered when the low power idle bit is set in FADT. > > I know that the current behavior in Linux does not review low power idle > bit to determine whether to offer S2I or S3 Is it something that is envisioned already as a future evolution in Linux as well, if more and more systems are now designed with S2I in mind? > so I'm inquiring if we can remove > S3 from a future BIOS update on this platform to let Linux work better > even though we don't ship this platform with Linux. That would be a great fix, removing the default to S3 for this system on Linux. > For now I would recommend that you focus efforts exclusively on making > S2I work, and ignore S3 problems. Well noted! > It's unclear to me exactly when you tested s2idle-dell-test. > Can you re-test with Rafael's newest submissions and changes to s2idle-dell-test > committed 28 hours ago? > You'll still have to add your system to the DMI whitelist for the last patch > but he has reworked a bunch of related wakeup code that has also changed. I've just done so, using the updated s2idle-dell-test branch + my DMI adaptation. I still get exactly the same results than during my previous tests: - it provides the expected fix when running BIOS 1.1.20: short press to wake-up - it doesn't fix with the current BIOS 1.1.31: long press still needed to wake-up so something has clearly changed between these 2 versions. Btw, the EC is explicitly updated when flashing version 1.1.31, that's one of the visible steps. Some assumptions now: either the SCI is ignored erroneously or it's not interpreted correctly by the expected driver? I guess that's the 2 possibilities I'll try to investigate. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
