kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

Shaun Crampton, thank you for reporting this and helping make Ubuntu
better. Could you please provide the full computer model as noted on the
sticker of the computer itself (not from the Bug Description)?

** Description changed:

- Noticed my laptop getting hot over the last month or so.  Investigating,
- I ran 'cpupower frequency-info' and found that all my cores were running
- at 2.8GHz pretty-much constantly despite being mostly idle.
+ Running 'cpupower frequency-info' shows all my cores running at 2.8GHz
+ constantly, despite being mostly idle. My laptop was using the
+ intel_pstate module for CPU frequency governing. I tried switching
+ between powersave and performance governors but they both showed the
+ same issue.
  
- My laptop was using the intel_pstate module for CPU frequency governing.
- I tried switching between powersave and performance governors but they
- both showed the same issue.
- 
- Adding intel_pstate=disabled to my kernel command line switched over to
- using the acpi-cpufreq module and the ondemand governor.  With that
- enabled, my CPU is back down to 800MHz-1.1GHz at idle, as expected and
- it immediately stopped overheating.
- 
- Bug 1188647 covered disabling intel_pstate a while ago while it was
- considered buggy but now it's enabled again, it seems to be causing
- problems for me.
+ WORKAROUND: Add intel_pstate=disabled to my kernel command line.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-15-generic 3.19.0-15.15
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  shaun      1646 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  shaun      1646 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat May  2 13:26:14 2015
  HibernationDevice: RESUME=UUID=e9e7a3d6-2d7f-4d2d-8880-ace10b4a942f
  InstallationDate: Installed on 2012-09-26 (948 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
  Lsusb:
-  Bus 003 Device 004: ID 2232:1024  
-  Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
-  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 003 Device 004: ID 2232:1024
+  Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
+  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic root=/dev/mapper/ubuntu-root ro quiet splash intel_pstate=disable vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.19.0-15-generic N/A
-  linux-backports-modules-3.19.0-15-generic  N/A
-  linux-firmware                             1.143
+  linux-restricted-modules-3.19.0-15-generic N/A
+  linux-backports-modules-3.19.0-15-generic  N/A
+  linux-firmware                             1.143
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-04-24 (8 days ago)
  dmi.bios.date: 07/12/2012
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P03AAC
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAC:bd07/12/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 900X3C/900X3D/900X4C/900X4D
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

** Tags added: needs-full-computer-model

** Changed in: linux (Ubuntu)
   Importance: High => Low

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

-- 
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/1451085

Title:
  Ivy Bridge laptop overheats with intel_pstate enabled

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Running 'cpupower frequency-info' shows all my cores running at 2.8GHz
  constantly, despite being mostly idle. My laptop was using the
  intel_pstate module for CPU frequency governing. I tried switching
  between powersave and performance governors but they both showed the
  same issue.

  WORKAROUND: Add intel_pstate=disabled to my kernel command line.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-15-generic 3.19.0-15.15
  ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
  Uname: Linux 3.19.0-15-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shaun      1646 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat May  2 13:26:14 2015
  HibernationDevice: RESUME=UUID=e9e7a3d6-2d7f-4d2d-8880-ace10b4a942f
  InstallationDate: Installed on 2012-09-26 (948 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
  Lsusb:
   Bus 003 Device 004: ID 2232:1024
   Bus 003 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-15-generic root=/dev/mapper/ubuntu-root ro quiet splash intel_pstate=disable vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-15-generic N/A
   linux-backports-modules-3.19.0-15-generic  N/A
   linux-firmware                             1.143
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-04-24 (8 days ago)
  dmi.bios.date: 07/12/2012
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P03AAC
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAC:bd07/12/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 900X3C/900X3D/900X4C/900X4D
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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