The currently under-development Ubuntu 14.04 "Trusty Tahr" is based on the 3.13 kernel which enables DPM by default (without needing the radeon.dpm=1 boot parameter I mentioned above) for Radeon HD 4000 through Radeon HD 7000 series graphics processors but with some specific ASICs being excluded. You can download a pre-release version at http://cdimage.ubuntu.com/daily-live/current/ and the final release is scheduled for April 17th, 2014 as per https://wiki.ubuntu.com/TrustyTahr/ReleaseSchedule
-- 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/881593 Title: Hardware temperature hazardously hot Status in “linux” package in Ubuntu: Fix Released Bug description: Parts of the notebook computer become painfully hot to the touch while running Ubuntu, and the fan is not running. When I boot back to OS X, the fan kicks in and runs until the computer returns to being cool to the touch. What metrics do I need to collect to help fix the problem? There seem to be two problems, one is that the hardware near the screen (GPU?) getting WAY too hot, another is that the fan is not turning on when the hardware gets too hot. This is the recent ubuntu: $ lsb_release -rd Description: Ubuntu 11.10 Release: 11.10 This affects the lifespan of the computer and it could conceivably be used to burn out and destroy the hardware very early. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lars 1778 F.... pulseaudio /dev/snd/controlC0: lars 1778 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xb0900000 irq 47' Mixer name : 'Cirrus Logic CS4206' Components : 'HDA:10134206,106b1d00,00100301' Controls : 22 Simple ctrls : 13 Card1.Amixer.info: Card hw:1 'Generic'/'HD-Audio Generic at 0xb0840000 irq 48' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 4 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied DistroRelease: Ubuntu 11.10 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64+mac (20111012) MachineType: Apple Inc. MacBookPro8,2 Package: linux (not installed) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=4c671a71-6a28-491e-9b3d-7ed360f27405 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Tags: oneiric running-unity Uname: Linux 3.0.0-12-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 09/09/11 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP81.88Z.0047.B1E.1109091244 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-94245A3940C91C80 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro8,2 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-94245A3940C91C80 dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B1E.1109091244:bd09/09/11:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80: dmi.product.name: MacBookPro8,2 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lars 1778 F.... pulseaudio /dev/snd/controlC0: lars 1778 F.... pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xb0900000 irq 47' Mixer name : 'Cirrus Logic CS4206' Components : 'HDA:10134206,106b1d00,00100301' Controls : 22 Simple ctrls : 13 Card1.Amixer.info: Card hw:1 'Generic'/'HD-Audio Generic at 0xb0840000 irq 48' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 4 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied DistroRelease: Ubuntu 11.10 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64+mac (20111012) MachineType: Apple Inc. MacBookPro8,2 Package: linux (not installed) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=4c671a71-6a28-491e-9b3d-7ed360f27405 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Tags: oneiric running-unity Uname: Linux 3.0.0-12-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: cdrom dialout lpadmin plugdev sambashare dmi.bios.date: 09/09/11 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP81.88Z.0047.B1E.1109091244 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-94245A3940C91C80 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro8,2 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-94245A3940C91C80 dmi.modalias: dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B1E.1109091244:bd09/09/11:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80: dmi.product.name: MacBookPro8,2 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. 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