apport information
** Tags added: apport-collected
** Description changed:
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
** Attachment added: "AlsaInfo.txt"
https://bugs.launchpad.net/bugs/1769236/+attachment/5135719/+files/AlsaInfo.txt
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https://bugs.launchpad.net/bugs/1769236
Title:
CPU frequency stuck at minimum value
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