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[Bug 1490229] Re: Brightness set to maximum after DPMS standby

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Czikus <1490229@xxxxxxxxxxxxxxxxxx>
Date: Sun, 20 Sep 2015 01:34:34 -0000
Reply-to: Bug 1490229 <1490229@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
apport information

** Tags added: apport-collected has-fix has-workaround kubuntu
reproducible single-occurrence

** Description changed:

  After configuring screen energy saving in KDE, I noticed that after DPMS
  standby, my screen brightness is set to maximum. This is confirmed by
  `cat /sys/class/backlight/intel_backlight/brightness`. The problem can
  be easily reproduce by switching to standby manually using  `xset dpms
  force standby`.
  
  Steps to reproduce:
  1) echo "300" | sudo tee  /sys/class/backlight/intel_backlight/brightness
  2) cat /sys/class/backlight/intel_backlight/brightness 
  This will report: 300
  3) xset dpms force standby
  4) Move mouse/press key
  5) cat /sys/class/backlight/intel_backlight/brightness
  This will report 937
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
  Uname: Linux 4.1.0-3-generic x86_64
  ApportVersion: 2.18-0ubuntu7
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Sat Aug 29 21:26:27 2015
  InstallationDate: Installed on 2015-08-10 (20 days ago)
  InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150809)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
+ --- 
+ ApportVersion: 2.18.1-0ubuntu1
+ Architecture: amd64
+ BootLog: enabled, not active
+ CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
+ CompositorRunning: None
+ CurrentDesktop: KDE
+ DistUpgraded: Fresh install
+ DistroCodename: wily
+ DistroRelease: Ubuntu 15.10
+ DistroVariant: kubuntu
+ DkmsStatus:
+  virtualbox, 5.0.4, 4.2.0-10-generic, x86_64: installed
+  virtualbox, 5.0.4, 4.2.0-7-generic, x86_64: installed
+ ExtraDebuggingInterest: No
+ GraphicsCard:
+  Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] (rev 09) (prog-if 00 [VGA controller])
+    Subsystem: ASUSTeK Computer Inc. Device [1043:13bd]
+ InstallationDate: Installed on 2015-08-10 (40 days ago)
+ InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150809)
+ Lsusb:
+  Bus 001 Device 005: ID 03eb:8a0c Atmel Corp. 
+  Bus 001 Device 004: ID 1bcf:2987 Sunplus Innovation Technology Inc. 
+  Bus 001 Device 003: ID 8087:07dc Intel Corp. 
+  Bus 001 Device 002: ID 8087:8000 Intel Corp. 
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+ MachineType: ASUSTeK COMPUTER INC. UX301LAA
+ Package: xorg 1:7.7+7ubuntu4
+ PackageArchitecture: amd64
+ ProcEnviron:
+  TERM=xterm-256color
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-10-generic.efi.signed root=UUID=103e34fc-23b4-497c-ac6b-791d423bee52 ro quiet splash acpi_osi= i915.powersave=1 i915.semaphores=1 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 drm.vblankoffdelay=1 vt.handoff=7
+ ProcVersionSignature: Ubuntu 4.2.0-10.12-generic 4.2.0
+ Tags:  wily kubuntu single-occurrence reproducible has-workaround has-fix
+ UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
+ Uname: Linux 4.2.0-10-generic x86_64
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
+ XorgConf:
+  Section "Extensions"
+      Option    "Composite" "Disabled"
+  EndSection
+ _MarkForUpload: True
+ dmi.bios.date: 05/08/2014
+ dmi.bios.vendor: American Megatrends Inc.
+ dmi.bios.version: UX301LAA.209
+ dmi.board.asset.tag: ATN12345678901234567
+ dmi.board.name: UX301LAA
+ 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.:bvrUX301LAA.209:bd05/08/2014:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
+ dmi.product.name: UX301LAA
+ dmi.product.version: 1.0
+ dmi.sys.vendor: ASUSTeK COMPUTER INC.
+ version.compiz: compiz N/A
+ version.ia32-libs: ia32-libs N/A
+ version.libdrm2: libdrm2 2.4.64-1
+ version.libgl1-mesa-dri: libgl1-mesa-dri 10.6.3-1ubuntu1
+ version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
+ version.libgl1-mesa-glx: libgl1-mesa-glx 10.6.3-1ubuntu1
+ version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu7
+ version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
+ version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
+ version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2
+ version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
+ xserver.bootTime: Sat Sep 19 18:26:05 2015
+ xserver.configfile: /etc/X11/xorg.conf
+ xserver.errors:
+  
+ xserver.logfile: /var/log/Xorg.0.log
+ xserver.outputs:
+  product id                                5126 
+  vendor                                     SHP
+ xserver.version: 2:1.17.2-1ubuntu7

** Attachment added: "CurrentDmesg.txt"
   https://bugs.launchpad.net/bugs/1490229/+attachment/4469101/+files/CurrentDmesg.txt

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https://bugs.launchpad.net/bugs/1490229

Title:
  Brightness set to maximum after DPMS standby

Status in xorg package in Ubuntu:
  Incomplete

Bug description:
  After configuring screen energy saving in KDE, I noticed that after
  DPMS standby, my screen brightness is set to maximum. This is
  confirmed by `cat /sys/class/backlight/intel_backlight/brightness`.
  The problem can be easily reproduce by switching to standby manually
  using  `xset dpms force standby`.

  Steps to reproduce:
  1) echo "300" | sudo tee  /sys/class/backlight/intel_backlight/brightness
  2) cat /sys/class/backlight/intel_backlight/brightness 
  This will report: 300
  3) xset dpms force standby
  4) Move mouse/press key
  5) cat /sys/class/backlight/intel_backlight/brightness
  This will report 937

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
  Uname: Linux 4.1.0-3-generic x86_64
  ApportVersion: 2.18-0ubuntu7
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Sat Aug 29 21:26:27 2015
  InstallationDate: Installed on 2015-08-10 (20 days ago)
  InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150809)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.18.1-0ubuntu1
  Architecture: amd64
  BootLog: enabled, not active
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: KDE
  DistUpgraded: Fresh install
  DistroCodename: wily
  DistroRelease: Ubuntu 15.10
  DistroVariant: kubuntu
  DkmsStatus:
   virtualbox, 5.0.4, 4.2.0-10-generic, x86_64: installed
   virtualbox, 5.0.4, 4.2.0-7-generic, x86_64: installed
  ExtraDebuggingInterest: No
  GraphicsCard:
   Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a2e] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:13bd]
  InstallationDate: Installed on 2015-08-10 (40 days ago)
  InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150809)
  Lsusb:
   Bus 001 Device 005: ID 03eb:8a0c Atmel Corp. 
   Bus 001 Device 004: ID 1bcf:2987 Sunplus Innovation Technology Inc. 
   Bus 001 Device 003: ID 8087:07dc Intel Corp. 
   Bus 001 Device 002: ID 8087:8000 Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. UX301LAA
  Package: xorg 1:7.7+7ubuntu4
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-10-generic.efi.signed root=UUID=103e34fc-23b4-497c-ac6b-791d423bee52 ro quiet splash acpi_osi= i915.powersave=1 i915.semaphores=1 i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 drm.vblankoffdelay=1 vt.handoff=7
  ProcVersionSignature: Ubuntu 4.2.0-10.12-generic 4.2.0
  Tags:  wily kubuntu single-occurrence reproducible has-workaround has-fix
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.2.0-10-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  XorgConf:
   Section "Extensions"
       Option    "Composite" "Disabled"
   EndSection
  _MarkForUpload: True
  dmi.bios.date: 05/08/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX301LAA.209
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX301LAA
  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.:bvrUX301LAA.209:bd05/08/2014:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX301LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.6.3-1ubuntu1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.6.3-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu7
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Sat Sep 19 18:26:05 2015
  xserver.configfile: /etc/X11/xorg.conf
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                5126 
   vendor                                     SHP
  xserver.version: 2:1.17.2-1ubuntu7

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References

[Bug 1490229] [NEW] Brightness set to maximum after DPMS standby
From: Czikus, 2015-08-30