Hello Martin, I think I have found the real cause of the bug: It seems to always happen when the wol flag is set to 'ug' (instead of 'g' or 'd'). I made a few reboots and checked the wol value with 'ethtool eth0' and it was always set to 'ug' by default after system startup (I don't know if this _really_ is always the case by default, because there were a few times in the past where suspend has worked without manually applying 'ethtool wol g'. I'll try to check that.). And I crosschecked that if I first set manually wol to 'g', do a successfull suspend, then set manually wol to 'ug' and then suspend again, the bug indeed appears.
This explains why the bug did never happen all the years when suspending with pm-suspend: The disable_wol hook always sets the flag explicitly to 'g' before suspend and thus the fact that the flag has the value 'ug' by default at system startup has no negative impact. If I add 'ethtool -s eth0 wol g' to /etc/rc.local, this is indeed a good workaround for the bug - it seems to change the state of the wol flag reliably. Martin, I really want to thank you for supporting me so far in finding the cause and also a workaround :-) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1450396 Title: Gigabyte P35-DS3: does not stay suspended Status in linux package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Incomplete Bug description: Hello, using Suspend-to-RAM on my system has stopped working reliably on Vivid when booting with Systemd. When I try to suspend my PC the following happens: - PC turns off - PC unwantedly wakes up (turns on) by itself again. This time span until it turns on again can reach from a second (almost immediately) until two or three minutes. - In a few cases (<25%), the PC stays suspended properly. A way to workaround this problem is to boot my PC with Upstart instead of Systemd, then this problem never happens (and has never happened in any of the previous Ubuntu versions since 2008). Thus it seems to be a bug somehow related to Systemd. Other steps I have tried to solve the problem (without any success): - Checking BIOS settings, all options are set that way that the PC should never wake up by any event other than pressing the power button. - Checking by running "cat /proc/acpi/wakeup | grep enabled" if any device could cause wake up events. This lists my USB controller, but deactivating it (with commands like "echo USB0 > /proc/acpi/wakeup") had no success on the problem. Also suspend while running Upstart works fine despite the USB controller listed as "enabled". In the system logs I could see no hint what causes the undesired wake- ups. Allthough there is one factor which seems to have a certain influence: If I close programs like Pidgin, Skype or Firefox that cause continuous network traffic, the chance is higher that my PC will stay suspened (while runinng Systemd). Kind regards, Jan ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: systemd 219-7ubuntu3 ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3 Uname: Linux 3.19.0-15-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Thu Apr 30 11:24:46 2015 InstallationDate: Installed on 2015-04-16 (13 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150415) MachineType: Gigabyte Technology Co., Ltd. P35-DS3 ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.19.0-15-generic root=/dev/mapper/internal--ssd-root ro rootflags=subvol=@ quiet splash SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/10/2008 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F13 dmi.board.name: P35-DS3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF13:bd07/10/2008:svnGigabyteTechnologyCo.,Ltd.:pnP35-DS3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35-DS3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: P35-DS3 dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1450396/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
