Looking at the logs, it seems there are 3 patterns atm (on mako): 1 - Wifi driver failing to suspend frequently: Feb 6 12:07:20 ubuntu-phablet kernel: [116497.506926] suspend: enter suspend Feb 6 12:07:20 ubuntu-phablet kernel: [116497.506956] PM: suspend entry 2015-02-06 17:07:20.782768475 UTC Feb 6 12:07:20 ubuntu-phablet kernel: [116497.506987] PM: Syncing filesystems... Feb 6 12:07:21 ubuntu-phablet kernel: [116497.583898] Freezing user space processes ... (elapsed 0.002 seconds) done. Feb 6 12:07:21 ubuntu-phablet kernel: [116497.605965] sync done. Feb 6 12:07:21 ubuntu-phablet kernel: [116497.827085] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done. Feb 6 12:07:21 ubuntu-phablet kernel: [116497.830564] Suspending console(s) (use no_console_suspend to debug) Feb 6 12:07:21 ubuntu-phablet kernel: [116497.842742] msm_fb_ext_suspend: Turning off HPD circuitry Feb 6 12:07:21 ubuntu-phablet kernel: [116497.870301] wlan: [12747:E :HDD] hdd_is_apps_power_collapse_allowed: do not allow APPS power collapse-pmcState = 1 scanRspPending = 0 inMiddleOfRoaming = 0 Feb 6 12:07:21 ubuntu-phablet kernel: [116497.870332] wlan: [12747:E :HDD] wlan_suspend: Fail wlan suspend: not in IMPS/BMPS Feb 6 12:07:21 ubuntu-phablet kernel: [116497.870332] wlan: [12747:F :HDD] hddDevSuspendHdlr: Not able to suspend wlan Feb 6 12:07:21 ubuntu-phablet kernel: [116497.870362] dpm_run_callback(): platform_pm_suspend+0x0/0x64 returns -1 Feb 6 12:07:21 ubuntu-phablet kernel: [116497.870362] PM: Device wcnss_wlan.0 failed to suspend: error -1 Feb 6 12:07:21 ubuntu-phablet kernel: [116497.870362] PM: Some devices failed to suspend Feb 6 12:07:21 ubuntu-phablet kernel: [116497.872041] msm_fb_ext_resume: Turning on HPD circuitry Feb 6 12:07:21 ubuntu-phablet kernel: [116497.873476] PM: resume of devices complete after 3.051 msecs Feb 6 12:07:21 ubuntu-phablet wpa_supplicant[6910]: rfkill: WLAN unblocked Feb 6 12:07:21 ubuntu-phablet kernel: [116497.875459] Restarting tasks ... done. Feb 6 12:07:21 ubuntu-phablet kernel: [116497.897098] PM: suspend exit 2015-02-06 17:07:21.172813771 UTC Feb 6 12:07:21 ubuntu-phablet kernel: [116497.897098] suspend: exit suspend, ret = -1 (2015-02-06 17:07:21.172813771 UTC)
2 - Battery -> udev -> Upower heavily consuming the CPU 3 - Device not even trying to suspend anymore after receiving a call -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1372413 Title: Extensive battery drain on RTM To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1372413/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
