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[Bug 1482390] Re: ASUS UX305LA - Battery state not detected correctly

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The same problem also exists on UX305UA.
I'm running kernel 4.4.1-040401-generic #201601311534 SMP Sun Jan 31 20:36:43 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

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https://bugs.launchpad.net/bugs/1482390

Title:
  ASUS UX305LA - Battery state not detected correctly

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Whether the AC adapter is connected or not, the battery is always
  detected as discharging:

  When AC adapter is present:

  $ sudo acpitool -a -b
    Battery #1     : Discharging, 100.0%
    AC adapter     : online

  $ sudo acpitool -B
    Battery #1     : present
      Remaining capacity : 54027 mWh, 100.0%
      Design capacity    : 56041 mWh
      Last full capacity : 53507 mWh, 95.48% of design capacity
      Capacity loss      : 4.522%
      Present rate       : 0 mW
      Charging state     : Discharging
      Battery type       : Li-ion
      Model number       : ASUS

  When AC adapter is not present:

  $ sudo acpitool -a -b
    Battery #1     : Discharging, 100.0%, 04:19:49
    AC adapter     : off-line

  $ sudo acpitool -B
    Battery #1     : present
      Remaining capacity : 54005 mWh, 100.0%, 04:28:31
      Design capacity    : 56041 mWh
      Last full capacity : 53507 mWh, 95.48% of design capacity
      Capacity loss      : 4.522%
      Present rate       : 12067 mW
      Charging state     : Discharging
      Battery type       : Li-ion
      Model number       : ASUS

  System information:

  $ sudo dmidecode
  # dmidecode 2.12
  # SMBIOS entry point at 0xace2a898
  SMBIOS 2.8 present.
  27 structures occupying 2154 bytes.
  Table at 0xAC7C6000.

  Handle 0x0000, DMI type 0, 24 bytes
  BIOS Information
   Vendor: American Megatrends Inc.
   Version: UX305LA.202
   Release Date: 04/16/2015
   Address: 0xF0000
   Runtime Size: 64 kB
   ROM Size: 6464 kB
   Characteristics:
    PCI is supported
    BIOS is upgradeable
    BIOS shadowing is allowed
    Boot from CD is supported
    Selectable boot is supported
    BIOS ROM is socketed
    EDD is supported
    5.25"/1.2 MB floppy services are supported (int 13h)
    3.5"/720 kB floppy services are supported (int 13h)
    3.5"/2.88 MB floppy services are supported (int 13h)
    Print screen service is supported (int 5h)
    8042 keyboard services are supported (int 9h)
    Serial services are supported (int 14h)
    Printer services are supported (int 17h)
    ACPI is supported
    USB legacy is supported
    Smart battery is supported
    BIOS boot specification is supported
    Targeted content distribution is supported
    UEFI is supported
   BIOS Revision: 5.6

  Handle 0x0001, DMI type 1, 27 bytes
  System Information
   Manufacturer: ASUSTeK COMPUTER INC.
   Product Name: UX305LA
   Version: 1.0
   Serial Number: xxx
   UUID: xxx
   Wake-up Type: Power Switch
   SKU Number: ASUS-NotebookSKU
   Family: UX

  Handle 0x0002, DMI type 2, 15 bytes
  Base Board Information
   Manufacturer: ASUSTeK COMPUTER INC.
   Product Name: UX305LA
   Version: 1.0
   Serial Number: xxx
   Asset Tag: xxx
   Features:
    Board is a hosting board
    Board is replaceable
   Location In Chassis: MIDDLE
   Chassis Handle: 0x0003
   Type: Motherboard
   Contained Object Handles: 0

  Handle 0x0003, DMI type 3, 25 bytes
  Chassis Information
   Manufacturer: ASUSTeK COMPUTER INC.
   Type: Notebook
   Lock: Not Present
   Version: 1.0
   Serial Number: xxx
   Asset Tag: xxx
   Boot-up State: Safe
   Power Supply State: Safe
   Thermal State: Safe
   Security Status: None
   OEM Information: 0x00000000
   Height: Unspecified
   Number Of Power Cords: 1
   Contained Elements: 1
    <OUT OF SPEC> (0)
   SKU Number: To be filled by O.E.M.

  Handle 0x0004, DMI type 10, 26 bytes
  On Board Device 1 Information
   Type: Video
   Status: Enabled
   Description:  VGA
  On Board Device 2 Information
   Type: Ethernet
   Status: Enabled
   Description:  GLAN
  On Board Device 3 Information
   Type: Ethernet
   Status: Enabled
   Description:  WLAN
  On Board Device 4 Information
   Type: Sound
   Status: Enabled
   Description:  Audio CODEC
  On Board Device 5 Information
   Type: SATA Controller
   Status: Enabled
   Description:  SATA Controller
  On Board Device 6 Information
   Type: Other
   Status: Enabled
   Description:  USB 2.0 Controller
  On Board Device 7 Information
   Type: Other
   Status: Enabled
   Description:  USB 3.0 Controller
  On Board Device 8 Information
   Type: Other
   Status: Enabled
   Description:  SMBus Controller
  On Board Device 9 Information
   Type: Other
   Status: Enabled
   Description:  Card Reader
  On Board Device 10 Information
   Type: Other
   Status: Enabled
   Description:  Cmos Camera
  On Board Device 11 Information
   Type: Other
   Status: Enabled
   Description:  Bluetooth

  Handle 0x0005, DMI type 11, 5 bytes
  OEM Strings
   String 1:
   String 2:
   String 3:
   String 4: 90NB08T5-M00230
   String 5:
   String 6:
   String 7:
   String 8:
   String 9:
   String 10:

  Handle 0x000C, DMI type 32, 20 bytes
  System Boot Information
   Status: No errors detected

  Handle 0x000D, DMI type 7, 19 bytes
  Cache Information
   Socket Designation: L1 Cache
   Configuration: Enabled, Not Socketed, Level 1
   Operational Mode: Write Back
   Location: Internal
   Installed Size: 32 kB
   Maximum Size: 32 kB
   Supported SRAM Types:
    Synchronous
   Installed SRAM Type: Synchronous
   Speed: Unknown
   Error Correction Type: Parity
   System Type: Data
   Associativity: 8-way Set-associative

  Handle 0x000E, DMI type 7, 19 bytes
  Cache Information
   Socket Designation: L1 Cache
   Configuration: Enabled, Not Socketed, Level 1
   Operational Mode: Write Back
   Location: Internal
   Installed Size: 32 kB
   Maximum Size: 32 kB
   Supported SRAM Types:
    Synchronous
   Installed SRAM Type: Synchronous
   Speed: Unknown
   Error Correction Type: Parity
   System Type: Instruction
   Associativity: 8-way Set-associative

  Handle 0x000F, DMI type 7, 19 bytes
  Cache Information
   Socket Designation: L2 Cache
   Configuration: Enabled, Not Socketed, Level 2
   Operational Mode: Write Back
   Location: Internal
   Installed Size: 256 kB
   Maximum Size: 256 kB
   Supported SRAM Types:
    Synchronous
   Installed SRAM Type: Synchronous
   Speed: Unknown
   Error Correction Type: Single-bit ECC
   System Type: Unified
   Associativity: 8-way Set-associative

  Handle 0x0010, DMI type 7, 19 bytes
  Cache Information
   Socket Designation: L3 Cache
   Configuration: Enabled, Not Socketed, Level 3
   Operational Mode: Write Back
   Location: Internal
   Installed Size: 4096 kB
   Maximum Size: 4096 kB
   Supported SRAM Types:
    Synchronous
   Installed SRAM Type: Synchronous
   Speed: Unknown
   Error Correction Type: Multi-bit ECC
   System Type: Unified
   Associativity: 16-way Set-associative

  Handle 0x0011, DMI type 4, 42 bytes
  Processor Information
   Socket Designation: SOCKET 0
   Type: Central Processor
   Family: Core i7
   Manufacturer: Intel(R) Corporation
   ID: D4 06 03 00 FF FB EB BF
   Signature: Type 0, Family 6, Model 61, Stepping 4
   Flags:
    FPU (Floating-point unit on-chip)
    VME (Virtual mode extension)
    DE (Debugging extension)
    PSE (Page size extension)
    TSC (Time stamp counter)
    MSR (Model specific registers)
    PAE (Physical address extension)
    MCE (Machine check exception)
    CX8 (CMPXCHG8 instruction supported)
    APIC (On-chip APIC hardware supported)
    SEP (Fast system call)
    MTRR (Memory type range registers)
    PGE (Page global enable)
    MCA (Machine check architecture)
    CMOV (Conditional move instruction supported)
    PAT (Page attribute table)
    PSE-36 (36-bit page size extension)
    CLFSH (CLFLUSH instruction supported)
    DS (Debug store)
    ACPI (ACPI supported)
    MMX (MMX technology supported)
    FXSR (FXSAVE and FXSTOR instructions supported)
    SSE (Streaming SIMD extensions)
    SSE2 (Streaming SIMD extensions 2)
    SS (Self-snoop)
    HTT (Multi-threading)
    TM (Thermal monitor supported)
    PBE (Pending break enabled)
   Version: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz
   Voltage: 0.9 V
   External Clock: 100 MHz
   Max Speed: 2400 MHz
   Current Speed: 2400 MHz
   Status: Populated, Enabled
   Upgrade: <OUT OF SPEC>
   L1 Cache Handle: 0x000E
   L2 Cache Handle: 0x000F
   L3 Cache Handle: 0x0010
   Serial Number: NULL
   Asset Tag: To Be Filled By O.E.M
   Part Number: To Be Filled By O.E.M
   Core Count: 2
   Core Enabled: 2
   Thread Count: 4
   Characteristics:
    64-bit capable
    Multi-Core
    Hardware Thread
    Execute Protection
    Enhanced Virtualization
    Power/Performance Control

  Handle 0x0012, DMI type 221, 12 bytes
  OEM-specific Type
   Header and Data:
    DD 0C 12 00 01 01 00 02 06 00 00 00
   Strings:
    Reference Code - ACPI

  Handle 0x0013, DMI type 16, 23 bytes
  Physical Memory Array
   Location: System Board Or Motherboard
   Use: System Memory
   Error Correction Type: None
   Maximum Capacity: 16 GB
   Error Information Handle: Not Provided
   Number Of Devices: 2

  Handle 0x0014, DMI type 17, 34 bytes
  Memory Device
   Array Handle: 0x0013
   Error Information Handle: Not Provided
   Total Width: 64 bits
   Data Width: 64 bits
   Size: 4096 MB
   Form Factor: SODIMM
   Set: None
   Locator: ChannelA-DIMM0
   Bank Locator: BANK 0
   Type: <OUT OF SPEC>
   Type Detail: Synchronous
   Speed: 1600 MHz
   Manufacturer: 0000
   Serial Number: 00000000
   Asset Tag: 9876543210
   Part Number:
   Rank: 2
   Configured Clock Speed: 1600 MHz

  Handle 0x0015, DMI type 17, 34 bytes
  Memory Device
   Array Handle: 0x0013
   Error Information Handle: Not Provided
   Total Width: 64 bits
   Data Width: 64 bits
   Size: 4096 MB
   Form Factor: SODIMM
   Set: None
   Locator: ChannelB-DIMM0
   Bank Locator: BANK 2
   Type: <OUT OF SPEC>
   Type Detail: Synchronous
   Speed: 1600 MHz
   Manufacturer: 0000
   Serial Number: 00000000
   Asset Tag: 9876543210
   Part Number:
   Rank: 2
   Configured Clock Speed: 1600 MHz

  Handle 0x0016, DMI type 19, 31 bytes
  Memory Array Mapped Address
   Starting Address: 0x00000000000
   Ending Address: 0x001FFFFFFFF
   Range Size: 8 GB
   Physical Array Handle: 0x0013
   Partition Width: 2

  Handle 0x0017, DMI type 20, 35 bytes
  Memory Device Mapped Address
   Starting Address: 0x00000000000
   Ending Address: 0x000FFFFFFFF
   Range Size: 4 GB
   Physical Device Handle: 0x0015
   Memory Array Mapped Address Handle: 0x0016
   Partition Row Position: Unknown
   Interleave Position: 1
   Interleaved Data Depth: 1

  Handle 0x0018, DMI type 20, 35 bytes
  Memory Device Mapped Address
   Starting Address: 0x00100000000
   Ending Address: 0x001FFFFFFFF
   Range Size: 4 GB
   Physical Device Handle: 0x0015
   Memory Array Mapped Address Handle: 0x0016
   Partition Row Position: Unknown
   Interleave Position: 2
   Interleaved Data Depth: 1

  Handle 0x0019, DMI type 221, 54 bytes
  OEM-specific Type
   Header and Data:
    DD 36 19 00 07 01 00 02 06 00 00 00 02 00 02 06
    00 00 00 03 00 02 06 00 00 00 04 05 FF FF FF FF
    FF 06 00 FF FF FF 09 00 07 00 FF FF FF 09 00 08
    00 FF FF FF FF FF
   Strings:
    Reference Code - SA - System Agent
    Reference Code - MRC
    SA - PCIe Version
    SA-CRID Status
    Disabled
    SA-CRID Original Value
    SA-CRID New Value
    OPROM - VBIOS

  Handle 0x001A, DMI type 221, 26 bytes
  OEM-specific Type
   Header and Data:
    DD 1A 1A 00 03 01 00 02 06 00 00 00 02 00 FF FF
    FF FF 00 03 04 0A 00 26 E8 03
   Strings:
    Reference Code - ME 10.0
    MEBx version
    ME Firmware Version
    1.5MB SKU

  Handle 0x001B, DMI type 221, 68 bytes
  OEM-specific Type
   Header and Data:
    DD 44 1B 00 09 01 00 02 06 00 00 00 02 03 FF FF
    FF FF FF 04 00 FF FF FF 03 00 05 00 FF FF FF 03
    00 06 00 FF FF FF FF FF 07 00 19 00 00 00 00 08
    00 2C 00 00 00 00 09 00 03 00 00 00 00 0A 00 01
    00 00 00 00
   Strings:
    Reference Code - PCH - Lynxpoint
    PCH-CRID Status
    Disabled
    PCH-CRID Original Value
    PCH-CRID New Value
    OPROM - RST - RAID
    LPTLp Bx Hsio Version
    LPTH Cx Hsio Version
    PCH9S A0 Hsio Version
    WPTLp B0 Hsio Version

  Handle 0x001C, DMI type 221, 26 bytes
  OEM-specific Type
   Header and Data:
    DD 1A 1C 00 03 01 00 02 06 00 00 00 02 00 00 00
    00 1D 00 03 00 00 05 00 00 00
   Strings:
    Reference Code - CPU
    uCode Version
    TXT ACM version

  Handle 0x001D, DMI type 13, 22 bytes
  BIOS Language Information
   Language Description Format: Long
   Installable Languages: 1
    en|US|iso8859-1
   Currently Installed Language: en|US|iso8859-1

  Handle 0x001E, DMI type 131, 64 bytes
  OEM-specific Type
   Header and Data:
    83 40 1E 00 31 00 00 00 00 00 00 00 00 00 00 00
    F8 00 C3 9C 00 00 00 00 01 40 00 00 00 00 0A 00
    E8 03 26 00 00 00 00 00 C8 00 FF FF 00 00 00 00
    00 00 00 00 26 00 00 00 76 50 72 6F 00 00 00 00

  Handle 0x001F, DMI type 14, 20 bytes
  Group Associations
   Name: Firmware Version Info
   Items: 5
    0x0012 (<OUT OF SPEC>)
    0x0019 (<OUT OF SPEC>)
    0x001A (<OUT OF SPEC>)
    0x001B (<OUT OF SPEC>)
    0x001C (<OUT OF SPEC>)

  Handle 0x0020, DMI type 127, 4 bytes
  End Of Table
  --- 
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sebastian   2436 F.... pulseaudio
   /dev/snd/pcmC1D0p:   sebastian   2436 F...m pulseaudio
   /dev/snd/controlC1:  sebastian   2436 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=bdba64aa-c323-4ba7-a32d-bc49a2716cc7
  InstallationDate: Installed on 2015-08-06 (0 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 064e:9700 Suyin Corp. 
   Bus 001 Device 003: ID 8087:0a2a Intel Corp. 
   Bus 001 Device 006: ID 046d:c077 Logitech, Inc. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX305LA
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-45-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-45-generic N/A
   linux-backports-modules-3.16.0-45-generic  N/A
   linux-firmware                             1.127.14
  Tags:  trusty
  Uname: Linux 3.16.0-45-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/16/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX305LA.202
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX305LA
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: ATN12345678901234567
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX305LA.202:bd04/16/2015:svnASUSTeKCOMPUTERINC.:pnUX305LA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX305LA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX305LA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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