mforonda, based on what has been seen and historically, bugzilla hasn't
been getting the attention one may expect. However, a message to the
mailing list typically leads the discussion for upstream.

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  Can't read battery state

Status in Linux:
Status in linux package in Ubuntu:

Bug description:
  My HP ENVY m4-1015dx Notebook PC can't read the battery state. This happens 
roughly once every three sessions, with no obvious trigger, thus no way to 
reproduce but to boot and wait, usually a couple of hours. The error displayed 
on dmesg is the following:
  ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0.MMRD] (Node 
ffff8802468b4f50), AE_AML_INFINITE_LOOP (20150930/psparse-542)
  ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0.RDMB] (Node 
ffff8802468b5938), AE_AML_INFINITE_LOOP (20150930/psparse-542)
  ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0.RDMW] (Node 
ffff8802468b5960), AE_AML_INFINITE_LOOP (20150930/psparse-542)
  ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0.BAT0._BST] 
(Node ffff8802468b54d8), AE_AML_INFINITE_LOOP (20150930/psparse-542)

  This makes every process that depends on reading battery state hang
  indefinitely, including suspend and shutdown. It is my understanding
  that \_SB.PCI0.LPCB.EC0.MMRD is the PCI Node of Memory Read 32-bit
  double word, and that these other nodes reference it in their
  definitions. In the session I share (dmesg), no event gets registered
  in dmesg for several minutes before these errors. As I said, no
  obvious trigger.

  Also, perhaps related, I find two other ACPI parsing/execution errors that 
repeat on every boot and frequently show on dmesg without any visible effect:
  ACPI Error: Method parse/execution failed [\_SB.PCI0.LPCB.EC0.ACCR] (Node 
ffff8802b68b4ed8), AE_AML_INFINITE_LOOP (20150930/psparse-542)
  ACPI Error: Method parse/execution failed [\_SB.PCI0.ACEL._STA] (Node 
ffff8802b68b90a0), AE_AML_INFINITE_LOOP (20150930/psparse-542)

  I haven't been able to find anything on the first node.

  This has been reproducible on kernel 3.19.

  Maybe worth mentioning. When disassembling DSDT from IASL I get a warning:
  iASL Warning: There were 6 external control methods found during disassembly, 
but additional ACPI tables to resolve these externals were not specified. The 
resulting disassembler output file may not compile because the disassembler did 
not know how many arguments to assign to these methods.

  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
   /dev/snd/pcmC1D0p:   m          3446 F...m pulseaudio
   /dev/snd/controlC1:  m          3446 F.... pulseaudio
   /dev/snd/controlC0:  m          3446 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=bed51ac4-b6b1-43fc-8304-7b7b4a88b7bb
  InstallationDate: Installed on 2016-08-06 (26 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 
  MachineType: Hewlett-Packard HP ENVY m4 Notebook PC
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic 
root=UUID=5a61dc86-7c12-4f8c-9f3c-717f399c2afc ro quiet splash 
acpi_backlight=vendor acpi_osi=Linux "acpi_osi=!Windows 2012" vt.handoff=7
  ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
   linux-restricted-modules-4.4.0-34-generic N/A
   linux-backports-modules-4.4.0-34-generic  N/A
   linux-firmware                            1.157.3
  Tags:  xenial
  Uname: Linux 4.4.0-34-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True 06/04/2014
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.18
  dmi.board.asset.tag: Type2 - Board Asset Tag 18EE
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 78.0D
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
dmi:bvnInsyde:bvrF.18:bd06/04/2014:svnHewlett-Packard:pnHPENVYm4NotebookPC:pvr0877100022345B10001620130:rvnHewlett-Packard:rn18EE:rvr78.0D:cvnHewlett-Packard:ct10:cvrChassisVersion: HP ENVY m4 Notebook PC
  dmi.product.version: 0877100022345B10001620130
  dmi.sys.vendor: Hewlett-Packard

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