I'm trying Ubuntu 12.04 beta2 and I'm having a problem with cpufreq. The default governor is ondemand and it's not working properly, the frequency is stuck at the lowest one, which makes the notebook really annoying to use. I've tried the performance governor and it looks like the CPU goes to the maximum frequency, but when querying with cpufreq-info, I still see the minimum freq, but in the statistics about the frequencies used, I see the maximum frequency getting more and more percentage of use.
Finally I tried the convervative governor, and it really look like it behaves like the ondeman should. The frequency is rapidily increased as needed and dropped down again when is not needed anymore. This is the only governor that seems to be changing the frequency in a way cpufreq-info can really see it, as I see the frequency going up and down when using that governor. The userspace governor also seems to be working as expected.
Another strange this is that among the supported frequencies, I get 1.60GHz (the maximum frequency supported) listed twice.
Here is an example run of cpufreq-info:
cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to <email address hidden>, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.60 GHz
available frequency steps: 1.60 GHz, 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 800 MHz and 1.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
cpufreq stats: 1.60 GHz:6.40%, 1.60 GHz:0.01%, 1.50 GHz:0.02%, 1.40 GHz:0.02%, 1.30 GHz:0.02%, 1.20 GHz:0.06%, 1.10 GHz:0.03%, 1000 MHz:0.04%, 900 MHz:0.07%, 800 MHz:93.33% (795)
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.60 GHz
available frequency steps: 1.60 GHz, 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 800 MHz and 1.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
cpufreq stats: 1.60 GHz:20.97%, 1.60 GHz:0.02%, 1.50 GHz:0.06%, 1.40 GHz:0.07%, 1.30 GHz:0.10%, 1.20 GHz:0.18%, 1.10 GHz:0.10%, 1000 MHz:0.15%, 900 MHz:0.19%, 800 MHz:78.16% (424)
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 2
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.60 GHz
available frequency steps: 1.60 GHz, 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 800 MHz and 1.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
cpufreq stats: 1.60 GHz:20.95%, 1.60 GHz:0.02%, 1.50 GHz:0.11%, 1.40 GHz:0.10%, 1.30 GHz:0.12%, 1.20 GHz:0.32%, 1.10 GHz:0.24%, 1000 MHz:0.25%, 900 MHz:0.38%, 800 MHz:77.51% (622)
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 3
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 1.60 GHz
available frequency steps: 1.60 GHz, 1.60 GHz, 1.50 GHz, 1.40 GHz, 1.30 GHz, 1.20 GHz, 1.10 GHz, 1000 MHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance
current policy: frequency should be within 800 MHz and 1.60 GHz.
The governor "conservative" may decide which speed to use
within this range.
current CPU frequency is 800 MHz.
cpufreq stats: 1.60 GHz:20.89%, 1.60 GHz:0.03%, 1.50 GHz:0.09%, 1.40 GHz:0.11%, 1.30 GHz:0.11%, 1.20 GHz:0.19%, 1.10 GHz:0.15%, 1000 MHz:0.13%, 900 MHz:0.14%, 800 MHz:78.15% (451)
My notebook is a Toshiba Z830, I guess all the proper information has been submitted to the bug already, otherwise please let me know what other information do you need. It would be nice if the final Precise release goes out without this issue, as it really will get people a very bad impression about Ubuntu because their notebooks will seem to be too slow!
Thanks.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image (not installed)
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: luca 24968 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xc0720000 irq 50'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:10ec0269,1179063e,00100100 HDA:80862805,11790001,00100000'
Controls : 24
Simple ctrls : 11
Date: Mon Apr 23 23:13:07 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
MachineType: TOSHIBA SATELLITE Z830
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.2.0-23-generic root=UUID=0e8db42e-d125-4bd5-bd3a-2181d1fa3301 ro rootflags=subvol=@ quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-23-generic N/A
linux-backports-modules-3.2.0-23-generic N/A
linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/08/2012
dmi.bios.vendor: TOSHIBA
dmi.bios.version: Version 1.60
dmi.board.asset.tag: 0000000000
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Version A0
dmi.chassis.asset.tag: 0000000000
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: Version 1.0
dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.60:bd02/08/2012:svnTOSHIBA:pnSATELLITEZ830:pvrPT22LE-00300GGR:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
dmi.product.name: SATELLITE Z830
dmi.product.version: PT22LE-00300GGR
dmi.sys.vendor: TOSHIBA
Do you know if this issue happened in a previous version of Ubuntu, or is this a new issue?
Would it be possible for you to test the latest upstream kernel? Refer to https:/
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-
If the mainline kernel does not fix this bug, please add the tag: 'kernel-
If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".
Thanks in advance.
http://