ubuntu 15.04 - nothing changed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1399823
Title: [Samsung NP730U3E-S01PL] LCD backlight doesn't work Status in linux package in Ubuntu: Expired Bug description: Backlight, no LCD, neither keyboard, doesn't work. echo 1 > /sys/class/backlight/intel_backlight/brightness #nothig changes echo 0 > /sys/class/backlight/intel_backlight/brightness #turns off LCD backlight there is no /proc/sys/video/use_native_backlight acpi_backlight =... # no effect at all # grep . /sys/class/backlight/intel_backlight/* /sys/class/backlight/intel_backlight/actual_brightness:8 /sys/class/backlight/intel_backlight/bl_power:0 /sys/class/backlight/intel_backlight/brightness:8 grep: /sys/class/backlight/intel_backlight/device: Jest katalogiem /sys/class/backlight/intel_backlight/max_brightness:4650 grep: /sys/class/backlight/intel_backlight/power: Jest katalogiem grep: /sys/class/backlight/intel_backlight/subsystem: Jest katalogiem /sys/class/backlight/intel_backlight/type:raw # dmesg|grep 'ACPI: Video' [ 1.766081] ACPI: Video Device [PEGP] (multi-head: yes rom: no post: no) [ 1.767014] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no # lspci |grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-25-generic 3.16.0-25.33 ProcVersionSignature: Ubuntu 3.16.0-25.33-generic 3.16.7 Uname: Linux 3.16.0-25-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: kasia 2021 F.... pulseaudio Date: Sat Dec 6 00:16:19 2014 HibernationDevice: RESUME=UUID=aa9f54d4-8ed7-4e2b-9107-8ffa2b36e88e InstallationDate: Installed on 2014-12-05 (0 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcEnviron: LANGUAGE=pl TERM=xterm PATH=(custom, no user) LANG=pl_PL.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-25-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash acpi_backlight=vendor vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. 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 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/26/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P07ABW.065.140226.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S01PL dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP07ABW.065.140226.dg:bd02/26/2014:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP07ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S01PL:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P07ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1399823/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
