kernel-packages team mailing list archive

[Pander <1400050@xxxxxxxxxxxxxxxxxx>]

For sure this isn't a BIOS issue

UX31A.218
01/31/2013

The Fn+f5 and Fn+f6 for decrease and increase brightness work but only
from 10 to 9 decreasing and get stuck at 9. Then increasing works from 9
to 10 and gets stuck at 10. Also Fn+f7 works to toggle the backlight on
and off.

With xev I get for brightness increase and decrease

FocusOut event, serial 555, synthetic NO, window 0x3e00001,
    mode NotifyGrab, detail NotifyAncestor

FocusOut event, serial 555, synthetic NO, window 0x3e00001,
    mode NotifyUngrab, detail NotifyPointer

FocusIn event, serial 555, synthetic NO, window 0x3e00001,
    mode NotifyUngrab, detail NotifyAncestor

KeymapNotify event, serial 555, synthetic NO, window 0x0,
    keys:  2   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   

RRNotify event, serial 555, synthetic NO, window 0x3e00001,
    subtype XRROutputPropertyChangeNotifyEvent
    output eDP1, property Backlight, timestamp 30495514, state NewValue

Previous serial was 553 and next is 557

Is that giving some information where to search for thsi bug? With
previous GNOME Shell(same BIOS) this was working fine but keyboard
illuminations was buggy, but that is now OK.

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https://bugs.launchpad.net/bugs/1400050

Title:
  Brightness doesn't change anymore in X.Org / GNOME Shell in 14.10

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have no idea to what package this belongs. Please file it under the
  correct one.

  Brightness doesn't change anymore in X.Org / GNOME Shell in 14.10. It
  stays on maximum (10) and sometimes the less brightness down/less key
  makes it go to 9 or 6. Each time I press the brightness down/less key,
  the overlay with brightness setting shows up (so the key works.

  I can set brightness to any level with
  echo 1 >/sys/class/backlight/acpi_video0/brightness
  echo 2 >/sys/class/backlight/acpi_video0/brightness
  ...
  echo 10 >/sys/class/backlight/acpi_video0/brightness
  and the display responds properly and I can read out the value with
  cat /sys/class/backlight/acpi_video0/brightness
  but changing it with keys only goes from 10 to 9 or 10 to 6.

  This used to work in older versions of Ubuntu. Please fix this and let me know how  I can fix this temporarily.
  --- 
  ApportVersion: 2.14.7-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sander     2450 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=24994e67-9b18-4cad-b387-788beff8b388
  InstallationDate: Installed on 2013-07-06 (520 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: ASUSTeK COMPUTER INC. UX31A
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-25-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-25-generic N/A
   linux-backports-modules-3.16.0-25-generic  N/A
   linux-firmware                             1.138
  Tags:  utopic
  Uname: Linux 3.16.0-25-generic x86_64
  UpgradeStatus: Upgraded to utopic on 2014-10-26 (44 days ago)
  UserGroups: adm cdrom debian-tor dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 01/31/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX31A.218
  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.218:bd01/31/2013: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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