This improvement is just by moving from 14.04 to 14.10. I just cat'ed my grub config and I do not have radeom.dpm stated there anymore. It should be active by default anyway.
2014-12-16 14:26 GMT+01:00 Goran Obal <goran_o...@amis.net>: > Lars, is this improvement just after going from 14.04 to 14.10 or did > you try adding radeon.dpm=1 to grub? > > -- > You received this bug notification because you are subscribed to the bug > report. > 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1304912 Title: Ubuntu 14.04 laptop uses lot of power switchable graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1304912/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
