From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: Droid 4: suspend to RAM? Date: Fri, 27 Jul 2018 13:32:15 +0200 Message-ID: <20180727113214.GA32069@amd> References: <20180725200205.GA29594@amd> <20180725212853.GA1965@amd> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="FCuugMFkClbJLl1L" Return-path: Content-Disposition: inline In-Reply-To: <20180725212853.GA1965@amd> Sender: linux-kernel-owner@vger.kernel.org To: Michael Nazzareno Trimarchi Cc: kernel list , linux-arm-kernel , Linux OMAP Mailing List , Tony Lindgren , Sebastian Reichel , nekit1000@gmail.com, mpartap@gmx.net, Merlijn Wajer List-Id: linux-omap@vger.kernel.org --FCuugMFkClbJLl1L Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > high even before modem (and thus USB) is enabled. > > > > > > Interestingly, CyanogenMod and Jolla seem to have higher power > > > consumption than stock operating system. > > > > > > (My Linux can survive for 10 hours, stock system could survive for 4 > > > days if I'm not mistaken). > > > > > > I thought I would experiment with suspend to RAM.. and it indeed > > > seemed to suspend ok, but I could not wake it up. Do I need to set up > > > wakeup with button somehow? Is suspend to RAM required for good power > > > consumption? > >=20 > > Sorry but pm subsystem has debug mode that you can test in a easy way. > > You can even wakeup by any rtc alarm easily. >=20 > Yes, that is how it works on PC (but there power button works, > too). Is it expected to work on Droid in v4.18? I tried setting up wakeup using RTC, but no, it does not seem to work: root@devuan:/my/tui/d4# rtcwake -m no -s 5 rtcwake: wakeup using /dev/rtc0 at Fri Jul 27 11:28:44 2018 root@devuan:/my/tui/d4# echo mem > /sys/power/state Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --FCuugMFkClbJLl1L Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEUEARECAAYFAltbAr4ACgkQMOfwapXb+vKMYgCcD0rd87jKWp3Ro7qsE0rJb06q omEAl3HBUYdy1It1rDlYXaHVs/gbSjI= =rs/z -----END PGP SIGNATURE----- --FCuugMFkClbJLl1L--