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[Bug 1450044] Re: On laptop on card AMD, screen brightness backlight isn't memorized between sessions

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Tamir <tamir.r@xxxxx>
Date: Wed, 29 Apr 2015 14:33:09 -0000
Reply-to: Bug 1450044 <1450044@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Description changed:

  HOW TO REPRODUCE:
-   1. Boot a laptop (on example my laptop on base Dual core AMD A6-4400M APU with Radeon HD Graphics 7670m).
+   1. Boot a laptop (on example my laptop on base Dual core AMD A6-4400M APU with Radeon HD Graphics 7670m) with Ubuntu 15.04 (systemd).
    2. Set a different screen backlight brightness level.
    3. Reboot.
  
  RESULT:
    Backlight is not memorized.
  
  Description laptop:
  CPU~Dual core AMD A6-4400M APU with Radeon HD Graphics (-MCP-) speed/max~2000/2700 MHz Kernel~3.19.0-15-generic x86_64 Up~1:19 Mem~1798.2/3724.2MB HDD~500.1GB(10.5% used) Procs~208 Client~Shell inxi~2.2.16
  iv@iv-pc:~$  inxi -v5
  System:    Host: iv-pc Kernel: 3.19.0-15-generic x86_64 (64 bit gcc: 4.9.2)
             Desktop: Unity 7.3.2 (Gtk 3.14.12-0ubuntu2)
             Distro: Ubuntu 15.04 vivid
  Machine:   System: SAMSUNG product: 355V4C/356V4C/3445VC/3545VC v: P09AAN.031.CP
             Mobo: SAMSUNG model: NP355V5X-S01RU v: BOARD 00
             Bios: American Megatrends v: P09AAN date: 07/04/2013
  CPU:       Dual core AMD A6-4400M APU with Radeon HD Graphics (-MCP-) cache: 2048 KB
             flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm) bmips: 10780
             clock speeds: max: 2700 MHz 1: 2700 MHz 2: 2400 MHz
  Memory:    Using dmidecode: you must be root to run dmidecode
  Graphics:  Card-1: Advanced Micro Devices [AMD/ATI] Trinity [Radeon HD 7520G]
             bus-ID: 00:01.0
             Card-2: Advanced Micro Devices [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
             bus-ID: 01:00.0
             Display Server: X.Org 1.17.1 drivers: ati,radeon (unloaded: fbdev,vesa)
             Resolution: 1366x768@60.1hz
             GLX Renderer: Gallium 0.4 on AMD ARUBA
             GLX Version: 3.0 Mesa 10.5.2 Direct Rendering: Yes
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: systemd 219-7ubuntu3
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Apr 29 17:16:22 2015
  InstallationDate: Installed on 2015-04-29 (0 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 355V4C/356V4C/3445VC/3545VC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic root=UUID=3cdab672-0213-4aa9-8bb8-6b5a44b121b9 ro quiet splash vt.handoff=7
  SourcePackage: systemd
  UdevLog: Error: [Errno 2] Нет такого файла или каталога: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/04/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P09AAN
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP355V5X-S01RU
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: BOARD REVISION 00
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP09AAN:bd07/04/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn355V4C/356V4C/3445VC/3545VC:pvrP09AAN.031.CP:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP355V5X-S01RU:rvrBOARDREVISION00:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 355V4C/356V4C/3445VC/3545VC
  dmi.product.version: P09AAN.031.CP
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

** Summary changed:

- On laptop on card AMD, screen brightness backlight isn't memorized between sessions
+ On laptop on card AMD, screen brightness backlight isn't memorized between sessions (systemd-backlight)

-- 
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https://bugs.launchpad.net/bugs/1450044

Title:
  On laptop on card AMD, screen brightness backlight isn't memorized
  between sessions (systemd-backlight)

Status in systemd package in Ubuntu:
  New

Bug description:
  HOW TO REPRODUCE:
    1. Boot a laptop (on example my laptop on base Dual core AMD A6-4400M APU with Radeon HD Graphics 7670m) with Ubuntu 15.04 (systemd).
    2. Set a different screen backlight brightness level.
    3. Reboot.

  RESULT:
    Backlight is not memorized.

  Description laptop:
  CPU~Dual core AMD A6-4400M APU with Radeon HD Graphics (-MCP-) speed/max~2000/2700 MHz Kernel~3.19.0-15-generic x86_64 Up~1:19 Mem~1798.2/3724.2MB HDD~500.1GB(10.5% used) Procs~208 Client~Shell inxi~2.2.16
  iv@iv-pc:~$  inxi -v5
  System:    Host: iv-pc Kernel: 3.19.0-15-generic x86_64 (64 bit gcc: 4.9.2)
             Desktop: Unity 7.3.2 (Gtk 3.14.12-0ubuntu2)
             Distro: Ubuntu 15.04 vivid
  Machine:   System: SAMSUNG product: 355V4C/356V4C/3445VC/3545VC v: P09AAN.031.CP
             Mobo: SAMSUNG model: NP355V5X-S01RU v: BOARD 00
             Bios: American Megatrends v: P09AAN date: 07/04/2013
  CPU:       Dual core AMD A6-4400M APU with Radeon HD Graphics (-MCP-) cache: 2048 KB
             flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm) bmips: 10780
             clock speeds: max: 2700 MHz 1: 2700 MHz 2: 2400 MHz
  Memory:    Using dmidecode: you must be root to run dmidecode
  Graphics:  Card-1: Advanced Micro Devices [AMD/ATI] Trinity [Radeon HD 7520G]
             bus-ID: 00:01.0
             Card-2: Advanced Micro Devices [AMD/ATI] Thames [Radeon HD 7500M/7600M Series]
             bus-ID: 01:00.0
             Display Server: X.Org 1.17.1 drivers: ati,radeon (unloaded: fbdev,vesa)
             Resolution: 1366x768@60.1hz
             GLX Renderer: Gallium 0.4 on AMD ARUBA
             GLX Version: 3.0 Mesa 10.5.2 Direct Rendering: Yes

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: systemd 219-7ubuntu3
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Apr 29 17:16:22 2015
  InstallationDate: Installed on 2015-04-29 (0 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 355V4C/356V4C/3445VC/3545VC
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-15-generic root=UUID=3cdab672-0213-4aa9-8bb8-6b5a44b121b9 ro quiet splash vt.handoff=7
  SourcePackage: systemd
  UdevLog: Error: [Errno 2] Нет такого файла или каталога: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/04/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P09AAN
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: NP355V5X-S01RU
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: BOARD REVISION 00
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP09AAN:bd07/04/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn355V4C/356V4C/3445VC/3545VC:pvrP09AAN.031.CP:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP355V5X-S01RU:rvrBOARDREVISION00:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 355V4C/356V4C/3445VC/3545VC
  dmi.product.version: P09AAN.031.CP
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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References

[Bug 1450044] [NEW] On laptop on card AMD, screen brightness backlight isn't memorized between sessions (systemd-backlight)
From: Tamir, 2015-04-29