Hello, on my Lenovo T440p Laptop the Haswell i7-4600M CPU refuses to enter lower PC states resulting in 14-15 Watts continuous power drain even if the system is idle and every tunalbes in powertop 2.5 are enabled. The issue is reproducable with Kernel versions 3.13 up to 3.14-rc3.
Did anyone else experience a similar issue? Powertop summary below. Kernel config: http://pastebin.com/vnGfhqLT dmesg: http://pastebin.com/3h1eEgWv ***PowerTOP Report*** **System Information** PowerTOP Version;v2.5 Kernel Version;Linux version 3.14.0-rc3 (root@knigge) (gcc version 4.8.2 (Gentoo 4.8.2 p1.0, pie-0.5.8) ) #6 SMP Tue Feb 18 08:49:05 CET 2014 System Name;LENOVO 20ANCTO1WW ThinkPad T440p CPU Information;2x Intel(R) Core(TM) i7-4600M CPU @ 2.90GHz OS Information;Gentoo/Linux **Power Consumption Summary** -nan wakeups/second, -nan GPU ops/second, -nan VFS ops/sec, -nan GFX wakes/sec and -0.0% CPU use Usage;Events/s;Category;Description 100.0%;;Device;alsa:hwC0D0 100.0%;;Device;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller 100.0%;;Device;USB device: Lenovo ThinkPad Dock (LENOVO ) 0.0%;;Device;USB device: usb-device-8087-8008 0.0%;;Device;USB device: usb-device-8087-8000 0.0%;;Device;USB device: Lenovo ThinkPad Dock (LENOVO ) 0.0%;;Device;USB device: EHCI Host Controller 0.0%;;Device;USB device: EHCI Host Controller 0.0%;;Device;USB device: xHCI Host Controller 0.0%;;Device;USB device: USB2.0 Hub 0.0%;;Device;USB device: Lenovo ThinkPad Dock (Lenovo) **Processor Idle state report** Package 0;;Core 0;;CPU 0 ;;;;;;C0 active; 0.5%; ;;;;;;POLL; 0.0%; 0.8 ms ;;;;;;C1E-HSW; 0.2%; 0.1 ms C2 (pc2); 96.4%;;;;;;; C3 (pc3); 0.1%;;C3 (cc3); 0.4%;;C3-HSW; 0.5%; 0.6 ms C6 (pc6); 0.0%;;C6 (cc6); 0.1%;;C6-HSW; 0.1%; 0.6 ms C7 (pc7); 0.0%;;C7 (cc7); 97.1%;;C7s-HSW; 97.3%; 39.3 ms ;;Core 1;;CPU 1 ;;;;;C0 active; 0.5%; ;;;;;POLL; 0.0%; 0.0 ms ;;;;;C1E-HSW; 0.1%; 0.1 ms ;;;;;;; ;;C3 (cc3); 0.2%;;C3-HSW; 0.2%; 0.5 ms ;;C6 (cc6); 0.1%;;C6-HSW; 0.1%; 0.5 ms ;;C7 (cc7); 97.4%;;C7s-HSW; 97.5%; 41.3 ms ;;GPU 27216288; ;;;; ;;Powered On; 0.4%; ;;RC6; 99.6%; ;;RC6p; 0.0%; ;;RC6pp; 0.0%; ;;;; ;;;; **Processor Frequency Report** Package 0;;Core 0;;CPU 0 ;;;;;;Actual; 801 MHz Idle; 0.0% ;;Idle; 0.0% ;;Idle; 0.0% ;;Core 1;;CPU 1 ;;;;;Actual; 799 MHz ;;Idle; 0.0% ;;Idle; 0.0% **Overview of Software Power Consumers** Usage;Wakeups/s;GPU ops/s;Disk IO/s;GFX Wakeups/s;Category;Description **Device Power Report** Usage;Device name -0.0%;DRAM 100.0%;alsa:hwC0D0 -0.0%;CPU core 100.0%;Display backlight 95.7%;Display backlight 100.0%;USB device: Lenovo ThinkPad Dock (LENOVO ) 100.0%;PCI Device: Intel Corporation Wireless 7260 -0.0%;CPU misc 100.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller 100.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] 100.0%;PCI Device: Intel Corporation QM87 Express LPC Controller 100.0%;USB device: xHCI Host Controller 100.0%;USB device: USB-PS/2 Optical Mouse (Logitech) 100.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 100.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 100.0%;Radio device: iwlwifi 100.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller 100.0%;PCI Device: Intel Corporation Ethernet Connection I217-LM 100.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI 100.0%;USB device: Logitech Illuminated Keyboard (Logitech) 100.0%;PCI Device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller 100.0%;PCI Device: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller 0.0 pkts/s;Network interface: enp0s25 (e1000e) 0.0%;USB device: USB2.0 Hub 0.0%;USB device: Lenovo ThinkPad Dock (Lenovo) 0.0%;USB device: usb-device-8087-8000 0.0%;USB device: xHCI Host Controller 0.0%;USB device: EHCI Host Controller 0.0%;USB device: EHCI Host Controller 0.0%;USB device: Lenovo ThinkPad Dock (LENOVO ) 0.0%;USB device: usb-device-8087-8008 0.0 rpm;Laptop fan 0.0%;Thinkpad light 0.0 pkts/s;Network interface: wlp3s0 (iwlwifi) 0.0%;PCI Device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller 0.0%;PCI Device: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader 0.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 0.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 0.0%;PCI Device: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 **Process device activity** Process;Device wpa_supplicant;/dev/rfkill acpid;/dev/input/event0 ;/dev/input/event1 ;/dev/input/event11 ;/dev/input/event12 ;/dev/input/event13 ;/dev/input/event14 ;/dev/input/event15 ;/dev/input/event2 ;/dev/input/event3 ;/dev/input/event4 ;/dev/input/event7 ;/dev/input/event8 ;/dev/input/event9 X;/dev/dri/card0 ;/dev/input/event1 ;/dev/input/event2 ;/dev/input/event3 ;/dev/input/event4 ;/dev/input/event5 ;/dev/input/event6 ;/dev/input/event7 ;/dev/input/event8 ;/dev/input/event9 ;/dev/vga_arbiter **Software Settings in need of Tuning** Description;Script Autosuspend for USB device USB-PS/2 Optical Mouse [Logitech];"echo 'auto' > '/sys/bus/usb/devices/3-9.1/power/control';" Autosuspend for USB device Logitech Illuminated Keyboard [Logitech];"echo 'auto' > '/sys/bus/usb/devices/3-9.2/power/control';" **Optimal Tuned Software Settings** Description VM writeback timeout Enable SATA link power Managmenet for host0 Enable SATA link power Managmenet for host1 Enable SATA link power Managmenet for host2 Enable SATA link power Managmenet for host3 Enable SATA link power Managmenet for host4 Enable SATA link power Managmenet for host5 Enable Audio codec power management Autosuspend for USB device EHCI Host Controller [usb2] Autosuspend for unknown USB device 1-1 (8087:8008) Autosuspend for unknown USB device 2-1 (8087:8000) Autosuspend for USB device Lenovo ThinkPad Dock [LENOVO ] Autosuspend for USB device EHCI Host Controller [usb1] Autosuspend for USB device xHCI Host Controller [usb3] Autosuspend for USB device xHCI Host Controller [usb4] Autosuspend for USB device USB2.0 Hub [3-9.3] Autosuspend for USB device Lenovo ThinkPad Dock [Lenovo] Autosuspend for USB device Lenovo ThinkPad Dock [LENOVO ] Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 Runtime PM for PCI Device Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller Runtime PM for PCI Device Intel Corporation 4th Gen Core Processor Integrated Graphics Controller Runtime PM for PCI Device Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 Runtime PM for PCI Device Intel Corporation Ethernet Connection I217-LM Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 Runtime PM for PCI Device Intel Corporation QM87 Express LPC Controller Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller Runtime PM for PCI Device Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader Runtime PM for PCI Device Intel Corporation Wireless 7260 Runtime PM for PCI Device Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 Wake-on-lan status for device wlp3s0 Wake-on-lan status for device enp0s25 Using 'ondemand' cpufreq governor -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
