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[Bug 1215590] [NEW] BIOS update 219 (from 215) for Asus UX31A led to battery % error

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Public bug reported:

Following a BIOS update from 215 to 219 for my Asus UX31A, battery % now
reports as being on 84% when it should read 100% (as it does in Windows
8). This value will remain permanently on 84% and will never reach 100%
when plugged into the mains. The little light on the power cable lights
up as green colour suggesting battery is at fully charged, thus
confirming there is some kind of miscommunication between my hardware
and xubuntu/kernel. This could be an Asus BIOS fault rather than a bug.
Either way, I'd appreciate a fix.

Prior to this BIOS update, my battery reached 100%.

I'm using XUBUNTU 13.04 (upgraded from 12.10)

(An additional issue is that the fan also seems a little more active
than it was before the update, but this may perhaps need to be put into
a seperate bug report.)

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-29-generic 3.8.0-29.42
ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  christopher   2349 F.... volumeicon
Date: Thu Aug 22 20:58:31 2013
HibernationDevice: RESUME=UUID=4a9691f1-20d6-4e42-bffd-d4dbe3ed18cf
InstallationDate: Installed on 2012-12-12 (252 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MachineType: ASUSTeK COMPUTER INC. UX31A
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=b25cb360-b179-400a-a007-244ec031fe0b ro quiet splash add_efi_memmap i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0 vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-29-generic N/A
 linux-backports-modules-3.8.0-29-generic  N/A
 linux-firmware                            1.106
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: Upgraded to raring on 2013-04-26 (118 days ago)
dmi.bios.date: 06/14/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX31A.219
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX31A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31A.219:bd06/14/2013:svnASUSTeKCOMPUTERINC.:pnUX31A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX31A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: UX31A
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug raring staging

** Description changed:

  Following a BIOS update from 215 to 219 for my Asus UX31A, battery % now
  reports as being on 84% when it should read 100% (as it does in Windows
- 8). This value will remain permantently on 84% and will never reach 100%
+ 8). This value will remain permanently on 84% and will never reach 100%
  when plugged into the mains. The little light on the power cable lights
  up as green colour suggesting battery is at fully charged, thus
  confirming there is some kind of miscommunication between my hardware
  and xubuntu/kernel. This could be an Asus BIOS fault rather than a bug.
  Either way, I'd appreciate a fix.
  
  Prior to this BIOS update, my battery reached 100%.
  
  I'm using XUBUNTU 13.04 (upgraded from 12.10)
  
  (An additional issue is that the fan also seems a little more active
  than it was before the update, but this may perhaps need to be put into
  a seperate bug report.)
  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42
  ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  christopher   2349 F.... volumeicon
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  christopher   2349 F.... volumeicon
  Date: Thu Aug 22 20:58:31 2013
  HibernationDevice: RESUME=UUID=4a9691f1-20d6-4e42-bffd-d4dbe3ed18cf
  InstallationDate: Installed on 2012-12-12 (252 days ago)
  InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  MachineType: ASUSTeK COMPUTER INC. UX31A
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=b25cb360-b179-400a-a007-244ec031fe0b ro quiet splash add_efi_memmap i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0 vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.8.0-29-generic N/A
-  linux-backports-modules-3.8.0-29-generic  N/A
-  linux-firmware                            1.106
+  linux-restricted-modules-3.8.0-29-generic N/A
+  linux-backports-modules-3.8.0-29-generic  N/A
+  linux-firmware                            1.106
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: Upgraded to raring on 2013-04-26 (118 days ago)
  dmi.bios.date: 06/14/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX31A.219
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX31A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31A.219:bd06/14/2013:svnASUSTeKCOMPUTERINC.:pnUX31A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX31A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX31A
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

-- 
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https://bugs.launchpad.net/bugs/1215590

Title:
  BIOS update 219 (from 215) for Asus UX31A led to battery % error

Status in “linux” package in Ubuntu:
  New

Bug description:
  Following a BIOS update from 215 to 219 for my Asus UX31A, battery %
  now reports as being on 84% when it should read 100% (as it does in
  Windows 8). This value will remain permanently on 84% and will never
  reach 100% when plugged into the mains. The little light on the power
  cable lights up as green colour suggesting battery is at fully
  charged, thus confirming there is some kind of miscommunication
  between my hardware and xubuntu/kernel. This could be an Asus BIOS
  fault rather than a bug. Either way, I'd appreciate a fix.

  Prior to this BIOS update, my battery reached 100%.

  I'm using XUBUNTU 13.04 (upgraded from 12.10)

  (An additional issue is that the fan also seems a little more active
  than it was before the update, but this may perhaps need to be put
  into a seperate bug report.)

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42
  ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  christopher   2349 F.... volumeicon
  Date: Thu Aug 22 20:58:31 2013
  HibernationDevice: RESUME=UUID=4a9691f1-20d6-4e42-bffd-d4dbe3ed18cf
  InstallationDate: Installed on 2012-12-12 (252 days ago)
  InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
  MachineType: ASUSTeK COMPUTER INC. UX31A
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=b25cb360-b179-400a-a007-244ec031fe0b ro quiet splash add_efi_memmap i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-29-generic N/A
   linux-backports-modules-3.8.0-29-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: Upgraded to raring on 2013-04-26 (118 days ago)
  dmi.bios.date: 06/14/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX31A.219
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX31A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX31A.219:bd06/14/2013:svnASUSTeKCOMPUTERINC.:pnUX31A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX31A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX31A
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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