** Description changed: + SRU Justification + + Impact: "drm/i915/gen8+: Add RC6 CTX corruption WA" makes it effectively + impossible to enter RC6 for some Intel GPUs when a display server is + running. This results in increased energy usage and temperature. + + Fix: Upstream has changed too much to make the fixes there applicable, + but Chris Wilson has provided a patch for 5.3, here: + https://gitlab.freedesktop.org/drm/intel/issues/614#note_366057 + + Test Case: See test results below. On an affected machine powertop will + show increased RC6 usage on an idle desktop after the patch, and other + symptoms of excessive power use should also subside. + + Regression Potential: The 5.3 patch is pretty straightforward, and only + adds running of an existing delayed worker to retire GPU requests. No + regressions have been reported in testing so far. + + --- + After upgrading to 5.3.0-23-generic the fans in my machine don't stop running. They always sound like something is utilizing CPU - even with no applications running after boot. If I boot back to 5.3.0-19-generic it's fine. My microcode version is reported as 0xd4 and iucode-tool reports: iucode-tool: system has processor(s) with signature 0x000506e3 Let me know if you need anything else. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-23-generic 5.3.0-23.25 ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7 Uname: Linux 5.3.0-23-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC2: dean 2898 F.... pulseaudio - /dev/snd/pcmC2D0p: dean 2898 F...m pulseaudio - /dev/snd/controlC0: dean 2898 F.... pulseaudio - /dev/snd/controlC1: dean 2898 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC2: dean 2898 F.... pulseaudio + /dev/snd/pcmC2D0p: dean 2898 F...m pulseaudio + /dev/snd/controlC0: dean 2898 F.... pulseaudio + /dev/snd/controlC1: dean 2898 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Nov 18 13:03:34 2019 HibernationDevice: RESUME=UUID=55a42c82-50bf-4e75-a133-dbd3aa93611b InstallationDate: Installed on 2018-07-24 (482 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180724) ProcEnviron: - TERM=xterm - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-23-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-5.3.0-23-generic N/A - linux-backports-modules-5.3.0-23-generic N/A - linux-firmware 1.183.2 + linux-restricted-modules-5.3.0-23-generic N/A + linux-backports-modules-5.3.0-23-generic N/A + linux-firmware 1.183.2 SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-07-19 (121 days ago) dmi.bios.date: 05/16/2018 dmi.bios.vendor: Intel Corp. dmi.bios.version: KYSKLi70.86A.0055.2018.0516.1629 dmi.board.name: NUC6i7KYB dmi.board.vendor: Intel Corporation dmi.board.version: H90766-406 dmi.chassis.type: 3 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnIntelCorp.:bvrKYSKLi70.86A.0055.2018.0516.1629:bd05/16/2018:svn:pn:pvr:rvnIntelCorporation:rnNUC6i7KYB:rvrH90766-406:cvnIntelCorporation:ct3:cvr1.0:
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853044 Title: 5.3.0-23-generic causes fans to spin when idle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853044/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
