** Changed in: pm-utils Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pm-utils in Ubuntu. https://bugs.launchpad.net/bugs/1172692
Title: Please implement in-kernel suspend to both Status in OEM Priority Project: Fix Released Status in OEM Priority Project precise series: Fix Released Status in pm-utils: Won't Fix Status in pm-utils package in Ubuntu: Fix Released Status in pm-utils source package in Precise: Fix Released Status in pm-utils source package in Quantal: Fix Released Status in pm-utils source package in Trusty: Fix Released Status in pm-utils package in CentOS: Fix Released Bug description: From kernel-3.6 there is in-kernel support for suspend to both (AKA hybrid suspend). Working patches can be found at https://bugs.freedesktop.org/show_bug.cgi?id=52572 (or links). [Impact] * Ubuntu 12.04 implements hybrid suspend differently. It suspends first and wakes up the computer for hibernation 15 minutes later. This is risky since the computer may be carried when the wakeup happens. The hard disk may experience physical shocks and get damaged. * Thus, it is desirable to have a real hybrid suspend implementation. In-kernel hybrid suspend has been supported since kernel 3.6+. pm-utils only needs a small patch to enable this feature. [Test Case] * Ensure all Ubuntu 12.04 packages are up-to-date in the test environment. Install pm-utils 1.4.1-9ubuntu1 Install linux-image-lts-raring * Reboot the computer with lts-raring kernel. Run the command: 'pm-suspend-hybrid' from a terminal. After the computer suspends, press the power button. It should be able to resume from suspension correctly. * Run the command above again. After it suspends, remove and reconnect its power supply (or its battery). Press the power button. It should be able to resume from hibernation correctly. * Reboot with the default 3.2 kernel, Run the command above. The computer should be able to suspend and then wake up for hibernation 15 minutes later. [Regression Potential] * This patch won't affect users who still use 3.2 kernel. It only enables in-kernel hybrid suspend if the option 'suspend' is available from /sys/power/disk. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1172692/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp