when the battery is fully charged or it reach the threshold set on "TLP" kde notify to me that the power is plug off. It doesn't happen immediately but I couldn't found other conditions in addition to these. The strange thing is that the "unplug" status lasts for a very short time like 0.5s. In fact if I set a different brightness for battery power and ac power the screen blink for a moment. I have use ubuntu gnome before kubuntu and I didn't have this problem. I try kubuntu 14.10 and 15.04 and change plasma version ( now I have KDE 5.3.2) and In all this case I have the "plug-off" problem. I use tlp, a energy manager write for thinkpad, but without it the problem isn't disappear. Reproducible: Always Steps to Reproduce: 1. Complete Charge of the battery 2. Wait. Actual Results: In a first time nothing but after a random time kde will notify you that ac was unplung and if you have set a different brightness in ac mode and in battery mode you will seen the screen blink for an half of a second Expected Results: when the battery is fully charged should not happen anything, at most "tlp" should disconnect the battery. ========= lshw ========= epr-think description: Computer width: 64 bits capabilities: smbios-2.7 vsyscall32 *-core description: Motherboard physical id: 0 *-memory description: System memory physical id: 0 size: 7711MiB *-cpu product: Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz vendor: Intel Corp. physical id: 1 bus info: cpu@0 size: 3268MHz capacity: 3400MHz width: 64 bits capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 fma cx16 xtpr pdcm pcid sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid xsaveopt cpufreq *-pci description: Host bridge product: Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller vendor: Intel Corporation physical id: 100 bus info: pci@0000:00:00.0 version: 06 width: 32 bits clock: 33MHz *-pci:0 description: PCI bridge product: Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller vendor: Intel Corporation physical id: 1 bus info: pci@0000:00:01.0 version: 06 width: 32 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:24 *-pci:1 description: PCI bridge product: Xeon E3-1200 v3/4th Gen Core Processor PCI Express x8 Controller vendor: Intel Corporation physical id: 1.1 bus info: pci@0000:00:01.1 version: 06 width: 32 bits clock: 33MHz capabilities: pci pm msi pciexpress normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:25 ioport:3000(size=4096) memory:f0000000-f0ffffff ioport:c0000000(size=301989888) *-generic UNCLAIMED description: Unassigned class product: Illegal Vendor ID vendor: Illegal Vendor ID physical id: 0 bus info: pci@0000:02:00.0 version: ff width: 32 bits clock: 66MHz capabilities: bus_master vga_palette cap_list configuration: latency=255 maxlatency=255 mingnt=255 resources: memory:f0000000-f0ffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:3000(size=128) *-display description: VGA compatible controller product: 4th Gen Core Processor Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 06 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:30 memory:f1000000-f13fffff memory:e0000000-efffffff ioport:4000(size=64) *-multimedia:0 description: Audio device product: Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller vendor: Intel Corporation physical id: 3 bus info: pci@0000:00:03.0 version: 06 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:34 memory:f1630000-f1633fff *-usb:0 description: USB controller product: 8 Series/C220 Series Chipset Family USB xHCI vendor: Intel Corporation physical id: 14 bus info: pci@0000:00:14.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:26 memory:f1620000-f162ffff *-usbhost:0 product: xHCI Host Controller vendor: Linux 3.19.0-26-generic xhci-hcd physical id: 0 bus info: usb@2 logical name: usb2 version: 3.19 capabilities: usb-3.00 configuration: driver=hub slots=6 speed=5000Mbit/s *-usbhost:1 product: xHCI Host Controller vendor: Linux 3.19.0-26-generic xhci-hcd physical id: 1 bus info: usb@1 logical name: usb1 version: 3.19 capabilities: usb-2.00 configuration: driver=hub slots=15 speed=480Mbit/s *-usb:0 UNCLAIMED description: Smart card reader product: EMV Smartcard Reader vendor: Generic physical id: 5 bus info: usb@1:5 version: 1.20 capabilities: usb-2.01 configuration: maxpower=50mA speed=12Mbit/s *-usb:1 UNCLAIMED description: Generic USB device vendor: Validity Sensors, Inc. physical id: 7 bus info: usb@1:7 version: 0.78 serial: 8938765aeb0a capabilities: usb-1.10 configuration: maxpower=100mA speed=12Mbit/s *-usb:2 description: Bluetooth wireless interface vendor: Intel Corp. physical id: b bus info: usb@1:b version: 0.01 capabilities: bluetooth usb-2.00 configuration: driver=btusb maxpower=100mA speed=12Mbit/s *-usb:3 description: Video product: Integrated Camera vendor: SunplusIT INC. physical id: c bus info: usb@1:c version: 0.03 capabilities: usb-2.00 configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s *-communication description: Communication controller product: 8 Series/C220 Series Chipset Family MEI Controller #1 vendor: Intel Corporation physical id: 16 bus info: pci@0000:00:16.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=mei_me latency=0 resources: irq:31 memory:f1639000-f163900f *-network description: Ethernet interface product: Ethernet Connection I217-LM vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eth0 version: 04 serial: 28:d2:44:54:02:7a capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.3.2-k firmware=0.13-3 latency=0 link=no multicast=yes port=twisted pair resources: irq:29 memory:f1600000-f161ffff memory:f163e000-f163efff ioport:4080(size=32) *-multimedia:1 description: Audio device product: 8 Series/C220 Series Chipset High Definition Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 04 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=snd_hda_intel latency=0 resources: irq:33 memory:f1634000-f1637fff *-pci:2 description: PCI bridge product: 8 Series/C220 Series Chipset Family PCI Express Root Port #1 vendor: Intel Corporation physical id: 1c bus info: pci@0000:00:1c.0 version: d4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 memory:f1500000-f15fffff *-generic description: Unassigned class product: RTS5227 PCI Express Card Reader vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 version: 01 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=rtsx_pci latency=0 resources: irq:27 memory:f1500000-f1500fff *-pci:3 description: PCI bridge product: 8 Series/C220 Series Chipset Family PCI Express Root Port #2 vendor: Intel Corporation physical id: 1c.1 bus info: pci@0000:00:1c.1 version: d4 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:17 memory:f1400000-f14fffff *-network description: Wireless interface product: Wireless 7260 vendor: Intel Corporation physical id: 0 bus info: pci@0000:04:00.0 logical name: wlan0 version: 83 serial: 5c:51:4f:91:ad:d4 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-26-generic firmware=25.17.12.0 ip=10.11.12.29 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn resources: irq:32 memory:f1400000-f1401fff *-usb:1 description: USB controller product: 8 Series/C220 Series Chipset Family USB EHCI #1 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: 04 width: 32 bits clock: 33MHz capabilities: pm debug ehci bus_master cap_list configuration: driver=ehci-pci latency=0 resources: irq:23 memory:f163d000-f163d3ff *-usbhost product: EHCI Host Controller vendor: Linux 3.19.0-26-generic ehci_hcd physical id: 1 bus info: usb@3 logical name: usb3 version: 3.19 capabilities: usb-2.00 configuration: driver=hub slots=3 speed=480Mbit/s *-usb description: USB hub vendor: Intel Corp. physical id: 1 bus info: usb@3:1 version: 0.04 capabilities: usb-2.00 configuration: driver=hub slots=8 speed=480Mbit/s *-isa description: ISA bridge product: QM87 Express LPC Controller vendor: Intel Corporation physical id: 1f bus info: pci@0000:00:1f.0 version: 04 width: 32 bits clock: 33MHz capabilities: isa bus_master cap_list configuration: driver=lpc_ich latency=0 resources: irq:0 *-storage description: SATA controller product: 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] vendor: Intel Corporation physical id: 1f.2 bus info: pci@0000:00:1f.2 version: 04 width: 32 bits clock: 66MHz capabilities: storage msi pm ahci_1.0 bus_master cap_list configuration: driver=ahci latency=0 resources: irq:28 ioport:40a8(size=8) ioport:40b4(size=4) ioport:40a0(size=8) ioport:40b0(size=4) ioport:4060(size=32) memory:f163c000-f163c7ff *-serial UNCLAIMED description: SMBus product: 8 Series/C220 Series Chipset Family SMBus Controller vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 04 width: 64 bits clock: 33MHz configuration: latency=0 resources: memory:f1638000-f16380ff ioport:efa0(size=32) *-scsi physical id: 2 logical name: scsi0 capabilities: emulated *-disk description: ATA Disk product: Samsung SSD 850 physical id: 0.0.0 bus info: scsi@0:0.0.0 logical name: /dev/sda version: 2B6Q serial: S251NSAG306778R size: 238GiB (256GB) capabilities: partitioned partitioned:dos configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 signature=872d226d *-volume:0 description: EXT4 volume vendor: Linux physical id: 1 bus info: scsi@0:0.0.0,1 logical name: /dev/sda1 logical name: / version: 1.0 serial: 47df7d19-0a00-41d7-adb0-b71e572abead size: 230GiB capacity: 230GiB capabilities: primary bootable journaled extended_attributes large_files huge_files dir_nlink extents ext4 ext2 initialized configuration: created=2015-06-29 11:18:15 filesystem=ext4 lastmountpoint=/ modified=2015-08-26 14:35:24 mount.fstype=ext4 mount.options=rw,relatime,errors=remount-ro,data=ordered mounted=2015-08-26 14:35:24 state=mounted *-volume:1 description: Extended partition physical id: 2 bus info: scsi@0:0.0.0,2 logical name: /dev/sda2 size: 7917MiB capacity: 7917MiB capabilities: primary extended partitioned partitioned:extended *-logicalvolume description: Linux swap / Solaris partition physical id: 5 logical name: /dev/sda5 capacity: 7917MiB capabilities: nofs -============================lsmod==================== Module Size Used by msr 16384 0 acpi_call 16384 0 pci_stub 16384 1 vboxpci 24576 0 vboxnetadp 28672 0 vboxnetflt 28672 0 bbswitch 16384 0 vboxdrv 458752 3 vboxnetadp,vboxnetflt,vboxpci binfmt_misc 20480 1 rfcomm 69632 8 bnep 20480 2 dm_crypt 24576 1 uvcvideo 90112 0 videobuf2_vmalloc 16384 1 uvcvideo videobuf2_memops 16384 1 videobuf2_vmalloc videobuf2_core 49152 1 uvcvideo v4l2_common 16384 1 videobuf2_core videodev 159744 3 uvcvideo,v4l2_common,videobuf2_core btusb 40960 0 media 24576 2 uvcvideo,videodev bluetooth 491520 22 bnep,btusb,rfcomm arc4 16384 2 intel_rapl 20480 0 iosf_mbi 16384 1 intel_rapl x86_pkg_temp_thermal 16384 0 intel_powerclamp 20480 0 iwlmvm 278528 0 snd_hda_codec_hdmi 53248 1 mac80211 724992 1 iwlmvm kvm 483328 0 snd_hda_codec_realtek 86016 1 snd_hda_codec_generic 69632 1 snd_hda_codec_realtek crct10dif_pclmul 16384 0 crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 aesni_intel 172032 3 aes_x86_64 20480 1 aesni_intel lrw 16384 1 aesni_intel gf128mul 16384 1 lrw glue_helper 16384 1 aesni_intel ablk_helper 16384 1 aesni_intel cryptd 20480 4 ghash_clmulni_intel,aesni_intel,ablk_helper joydev 20480 0 snd_hda_intel 36864 7 snd_hda_controller 32768 1 snd_hda_intel serio_raw 16384 0 snd_hda_codec 143360 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller iwlwifi 196608 1 iwlmvm snd_hwdep 20480 1 snd_hda_codec cfg80211 540672 3 iwlwifi,mac80211,iwlmvm snd_seq_midi 16384 0 snd_seq_midi_event 16384 1 snd_seq_midi thinkpad_acpi 86016 1 snd_rawmidi 32768 1 snd_seq_midi snd_pcm 106496 5 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller nvram 16384 1 thinkpad_acpi rtsx_pci_ms 20480 0 snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi memstick 20480 1 rtsx_pci_ms mei_me 20480 0 snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi lpc_ich 24576 0 mei 90112 1 mei_me ie31200_edac 16384 0 snd_timer 32768 2 snd_pcm,snd_seq edac_core 53248 1 ie31200_edac shpchp 40960 0 wmi 20480 0 snd 90112 25 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_seq_device soundcore 16384 2 snd,snd_hda_codec mac_hid 16384 0 intel_smartconnect 16384 0 coretemp 16384 0 parport_pc 32768 0 ppdev 20480 0 lp 20480 0 parport 45056 3 lp,ppdev,parport_pc autofs4 40960 2 rtsx_pci_sdmmc 24576 0 i915 1060864 13 i2c_algo_bit 16384 1 i915 drm_kms_helper 126976 1 i915 e1000e 237568 0 drm 344064 14 i915,drm_kms_helper psmouse 118784 0 ahci 36864 2 libahci 32768 1 ahci ptp 20480 1 e1000e rtsx_pci 49152 2 rtsx_pci_ms,rtsx_pci_sdmmc pps_core 20480 1 ptp video 20480 1 i915 =========
I don't know if it is important. five minute ago this problem shows another feature: my laptop after notify the false unplug of ac start to stream white noise from my headphone even if I have soft disable audio
I bought a Thinkpad in spring of 2016 and I’ve been using KDE and tlp on it the whole time (first Gentoo, now Arch Linux). I’ve never witnessed the reported behaviour. In fact, the power applet still shows “Charging” after the charge threshold has been reached. Do you still experience it?
In fact, this is likely to be a upower or kernel bug, not a powerdevil issue. There is one such issue right now: https://gitlab.freedesktop.org/upower/upower/-/issues/126