@Gerald, can you inform me which release you are using an the version of
thermald you were using when you observed this bug? I'll double check to
see if any backported fixes are missing.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
** Changed in: thermald (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
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https://bugs.launchpad.net/bugs/1769236
Title:
CPU frequency stuck at minimum value
Status in linux package in Ubuntu:
Confirmed
Status in thermald package in Ubuntu:
Incomplete
Bug description:
I installed the Kubuntu variant of Ubuntu 18.04 on a new HP Spectre 13
laptop. Performance is poor. The CPU (an i7-8550U) is running at
400MHz, and never speeds up, even when running some of the Phoronix
Test Suite benchmarks.
I can use cpupower to switch to the "performance" cpufreq governor,
but cannot change the frequency with either governor.
Here is the output of some experiments I ran while Phoronix's c-ray test was
running.
______________
gjditchf@copperplate:/var/log$ cat /proc/cpuinfo | grep MHz
cpu MHz : 400.008
cpu MHz : 400.002
cpu MHz : 400.002
cpu MHz : 400.003
cpu MHz : 400.005
cpu MHz : 400.003
cpu MHz : 400.001
cpu MHz : 400.004
gjditchf@copperplate:/var/log$ cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 400 MHz - 4.00 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 400 MHz and 1.60 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 400 MHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
gjditchf@copperplate:/var/log$ sudo cpupower frequency-set -f 1.60GHz
Setting cpu: 0
Error setting new values. Common errors:
- Do you have proper administration rights? (super-user?)
- Is the governor you requested available and modprobed?
- Trying to set an invalid policy?
- Trying to set a specific frequency, but userspace governor is not available,
for example because of hardware which cannot be set to a specific frequency
or because the userspace governor isn't loaded?
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-20-generic 4.15.0-20.21
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CurrentDesktop: KDE
Date: Fri May 4 12:57:25 2018
InstallationDate: Installed on 2018-04-28 (6 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64
(20180426)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: gjditchf 1190 F.... pulseaudio
CurrentDesktop: KDE
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-04-28 (10 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64
(20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0a2b Intel Corp.
Bus 001 Device 003: ID 0bda:564e Realtek Semiconductor Corp.
Bus 001 Device 002: ID 0bda:564f Realtek Semiconductor Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Spectre Laptop 13-af0xx
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-20-generic
root=UUID=ab54f00a-7dd6-4d75-a664-682f777c841c ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
RelatedPackageVersions:
linux-restricted-modules-4.15.0-20-generic N/A
linux-backports-modules-4.15.0-20-generic N/A
linux-firmware 1.173
Tags: bionic
Uname: Linux 4.15.0-20-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin monotone plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 10/13/2017
dmi.bios.vendor: Insyde
dmi.bios.version: F.06
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 83A2
dmi.board.vendor: HP
dmi.board.version: 55.24
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnInsyde:bvrF.06:bd10/13/2017:svnHP:pnHPSpectreLaptop13-af0xx:pvrType1ProductConfigId:rvnHP:rn83A2:rvr55.24:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Spectre
dmi.product.name: HP Spectre Laptop 13-af0xx
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
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