** Package changed: linux-lowlatency (Ubuntu) => pm-utils (Ubuntu) ** Description changed:
Distro : Ubuntu Studio 12.10 (low latency kernel) M/B : Tyan Thunder S2915 (not S2915-E) CPU : AMD Opteron Dual-core 2212 (frequency steps from 1 to 2GHz) BIOS version : v3.0 (last version for this M/B) - BIOS config : NUMA + IOMMU + Memory whole translation are activated + BIOS config : NUMA + IOMMU + Memory hole translation are activated Kernel boot options : /boot/vmlinuz-3.5.0-49-lowlatency root=UUID=xxxxxxxxx ro quiet splash acpi_os_name=linux acpi=strict pcie_aspm=off iommu=noagp - Issue Description : CPU frequency looks normal after cold boot (slows down to 1GHz when CPUs are idle), but then stick to maximum frequency (2GHz) whatever CPU's load, since after resuming from first suspend to ram. Behavior stays the same from this point on. I didn't noticed it at first, until I took a look to my temperature sensors a few days after the update, and saw my CPUs 15C hotter than usual. Behavior has started with kernel update from 3.5.0-48 to 3.5.0-49 (issue doesn't occur when booting back on 3.5.0-48). - ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-49-lowlatency 3.5.0-49.50 ProcVersionSignature: Ubuntu 3.5.0-49.50-lowlatency 3.5.7.32 Uname: Linux 3.5.0-49-lowlatency x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.6.1-0ubuntu13 Architecture: amd64 Date: Thu May 15 03:40:49 2014 InstallationDate: Installed on 2013-05-26 (353 days ago) InstallationMedia: Ubuntu-Studio 12.10 "Quantal Quetzal" - Release amd64 (20121017.1) MarkForUpload: True SourcePackage: linux-lowlatency UpgradeStatus: No upgrade log present (probably fresh install) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1319618 Title: pm-utils hook unable to restore previous CPU state when resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1319618/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
