The wattage consumption has now dropped to 26W on average. However, on Windows it goes down to 11 - 12W. Seems like it is still not shut down correctly.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1304912 Title: Ubuntu 14.04 laptop uses lot of power switchable graphics Status in “xserver-xorg-video-ati” package in Ubuntu: Confirmed Bug description: I have a Samsung Series 7 Chronos 700Z3A-S02DE. It uses an i5-2450m (Intel HD3000) and an AMD 6490m dedicated graphics card. Since Ubuntu 14.04 uses Linux kernel 3.13 it enables dpm by default. This causes the graphics card to be shut down to dynoff when not used and should make it use (almost) no power. However, the laptop fans are working all the time and the laptop produces quite a lot of noise (the CPU does not heat as sensors are at 60°C). The sensor for the graphcis card always shows -128°C. Using powertop it reveals that the laptop consumes around 34W on battery. Looking on the list where the usage is shown per device it shows the radeon graphics card with 0%. I think there is a bug and the graphics card is NOT shutdown correctly to not use any noticable power. I would appreciate if I can help you to find the issue and if you need any more information. --- .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true DistUpgraded: Fresh install DistroCodename: trusty DistroRelease: Ubuntu 14.04 DistroVariant: ubuntu DkmsStatus: bcmwl, 6.30.223.141+bdcom, 3.13.0-20-generic, x86_64: installed bcmwl, 6.30.223.141+bdcom, 3.13.0-21-generic, x86_64: installed bcmwl, 6.30.223.141+bdcom, 3.13.0-23-generic, x86_64: installed ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Samsung Electronics Co Ltd Device [144d:c0b3] Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] [1002:6760] (rev ff) (prog-if ff) InstallationDate: Installed on 2014-04-01 (7 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140331) MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z3A/700Z4A/700Z5A/700Z5B Package: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.14.0-031400-generic root=UUID=61e915cb-08a0-4dde-9067-e21c55686387 ro quiet splash vt.handoff=7 Tags: trusty ubuntu compiz-0.9 Uname: Linux 3.14.0-031400-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 11/06/2012 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: 15FD dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 700Z3A/700Z4A/700Z5A/700Z5B dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: FAB1 dmi.chassis.asset.tag: Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr15FD:bd11/06/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z3A/700Z4A/700Z5A/700Z5B:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn700Z3A/700Z4A/700Z5A/700Z5B:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1: dmi.product.name: 700Z3A/700Z4A/700Z5A/700Z5B dmi.product.version: 0.1 dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. version.compiz: compiz 1:0.9.11+14.04.20140404-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu7 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Wed Apr 9 10:44:25 2014 xserver.configfile: default xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension. xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.15.0-1ubuntu7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1304912/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
