I think we need to know if intel_pstate is more stable in 4.x series, because the new releases. If it keeps unstable may be disable by default is the better choice.
2015-08-27 14:33 GMT-03:00 Colin Ian King <1188...@bugs.launchpad.net>: > Enabling intel-pstate on the 3.13 kernel was deemed problematic for > several reasons. However, I have backported all of the changes upto > 4.2-rc8 to 3.13 and re-enabled the intel-pstate driver for testing. I > have performed a boot smoke test with this kernel and I think it needs > some deeper testing to see if it resolves your issues. > > The kernel packages can be found in: > > http://kernel.ubuntu.com/~cking/intel-pstate > > Please can you see if these help. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1188647 > > Title: > Please change intel_pstate default to disable > > Status in linux package in Ubuntu: > Fix Released > > Bug description: > 3.9 introduced a new default governor on SandyBridge CPUs called > INTEL_PSTATE which, when built in and enabled (the default), removes > all other governors (like our usual default, ondemand). 3.10 extended > this to Ivybridge generation CPUs. > > In theory, this isn't an awful thing, as the new Intel pstate governor > should be higher performance and give better power savings. In > theory. > > In practice, it drives my CPUs to max frequency nearly constantly, > spins my fans like mad and, somehow, does all of this while also > eating enough CPU time in kernel threads to make my machine choppy, > unresponsive, and unable to do simple things like play videos when I > get off work. > > Therefore, I propose that we, for now, toggle intel_pstate to disable > by default (I am using intel_pstate=disable on my command line right > now, with great success), so it's still built in, and people can play > with it, but it's off by default. > > ProblemType: Bug > DistroRelease: Ubuntu 13.10 > Package: linux-image-3.9.0-4-generic 3.9.0-4.9 > ProcVersionSignature: Ubuntu 3.9.0-4.9-generic 3.9.4 > Uname: Linux 3.9.0-4-generic x86_64 > ApportVersion: 2.10.2-0ubuntu1 > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: adconrad 2574 F.... pulseaudio > CurrentDmesg: > [ 30.633035] init: plymouth-stop pre-start process (2079) terminated > with status 1 > [ 36.086916] br0: port 1(eth0) entered forwarding state > Date: Fri Jun 7 08:48:56 2013 > HibernationDevice: RESUME=UUID=73040efa-baec-458a-8307-3bca07b26c3c > InstallationDate: Installed on 2012-12-09 (179 days ago) > InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121209) > MachineType: LENOVO 4173LPB > MarkForUpload: True > ProcFB: 0 inteldrmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-4-generic > root=UUID=2222aad5-ef31-4428-973f-71740fc7cb6a ro intel_pstate=disable quiet > splash vt.handoff=7 > RelatedPackageVersions: > linux-restricted-modules-3.9.0-4-generic N/A > linux-backports-modules-3.9.0-4-generic N/A > linux-firmware 1.109 > SourcePackage: linux > UpgradeStatus: No upgrade log present (probably fresh install) > dmi.bios.date: 09/13/2012 > dmi.bios.vendor: LENOVO > dmi.bios.version: 8CET55WW (1.35 ) > dmi.board.asset.tag: Not Available > dmi.board.name: 4173LPB > dmi.board.vendor: LENOVO > dmi.board.version: Not Available > dmi.chassis.asset.tag: No Asset Information > dmi.chassis.type: 10 > dmi.chassis.vendor: LENOVO > dmi.chassis.version: Not Available > dmi.modalias: > dmi:bvnLENOVO:bvr8CET55WW(1.35):bd09/13/2012:svnLENOVO:pn4173LPB:pvrThinkPadT420s:rvnLENOVO:rn4173LPB:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: > dmi.product.name: 4173LPB > dmi.product.version: ThinkPad T420s > dmi.sys.vendor: LENOVO > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188647/+subscriptions -- Marcos Alano ---------------------------------------------- P: Por que este email é tão curto? R: http://five.sentenc.es ---------------------------------------------- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1188647 Title: Please change intel_pstate default to disable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1188647/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
