[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
The upstream kernel did not fix the issue. Yet, cpufreq behaves differently now (my guess: different/missing kernel modules): cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. 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: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 2.64 GHz. analyzing CPU 1: driver: intel_pstate CPUs which run at the same hardware frequency: 1 CPUs which need to have their frequency coordinated by software: 1 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 3.17 GHz. analyzing CPU 2: driver: intel_pstate CPUs which run at the same hardware frequency: 2 CPUs which need to have their frequency coordinated by software: 2 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 3.24 GHz. analyzing CPU 3: driver: intel_pstate CPUs which run at the same hardware frequency: 3 CPUs which need to have their frequency coordinated by software: 3 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 2.45 GHz. analyzing CPU 4: driver: intel_pstate CPUs which run at the same hardware frequency: 4 CPUs which need to have their frequency coordinated by software: 4 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 3.79 GHz. analyzing CPU 5: driver: intel_pstate CPUs which run at the same hardware frequency: 5 CPUs which need to have their frequency coordinated by software: 5 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 3.65 GHz. analyzing CPU 6: driver: intel_pstate CPUs which run at the same hardware frequency: 6 CPUs which need to have their frequency coordinated by software: 6 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 3.62 GHz. analyzing CPU 7: driver: intel_pstate CPUs which run at the same hardware frequency: 7 CPUs which need to have their frequency coordinated by software: 7 maximum transition latency: 0.97 ms. hardware limits: 1.60 GHz - 3.90 GHz available cpufreq governors: performance, powersave current policy: frequency should be within 3.90 GHz and 3.90 GHz. The governor performance may decide which speed to use within this range. current CPU frequency is 3.60 GHz. ** Tags added: kernel-bug-exists-upstream kernel-bug-exists- upstream-v3.18-rc4 ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- 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/1390902 Title: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu: lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:Ubuntu 14.04.1 LTS Release:14.04 Codename: trusty uname -a Linux desk 3.13.0-39-generic #66-Ubuntu SMP
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
After two hours of getting my GPU driver to work again due to installing
and deinstalling mainline kernel package ...
Cause of problem found:
cpufreqd
If this package is not installed frequency scaling works - out of the
box.
Solution: Bann cpufreqd from repositories.
--
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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Triaged
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
HibernationDevice: RESUME=UUID=1968620e-56f2-4ec6-b4ae-d2c601e8caa5
InstallationDate: Installed on 2014-08-28 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64
(20140722.2)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lono wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
0 VESA VGA
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic
root=UUID=98ea3432-7344-4034-8652-46e5edf53f5b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.8
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.40
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
** Tags removed: bios-outdated-2.90
** Tags added: latest-bios-2.90
--
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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Triaged
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
HibernationDevice: RESUME=UUID=1968620e-56f2-4ec6-b4ae-d2c601e8caa5
InstallationDate: Installed on 2014-08-28 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64
(20140722.2)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lono wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
0 VESA VGA
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic
root=UUID=98ea3432-7344-4034-8652-46e5edf53f5b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.8
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.40
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
ahb, the issue you are reporting is an upstream one. Could you please
report this problem to the appropriate mailing list (linux-pm) by
following the instructions _verbatim_ at
https://wiki.ubuntu.com/Bugs/Upstream/kernel ?
Please provide a direct URL to your e-mail to the mailing list once you
have made it so that it may be tracked.
Thank you for your understanding.
** Changed in: linux (Ubuntu)
Status: Confirmed = Triaged
--
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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Triaged
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
HibernationDevice: RESUME=UUID=1968620e-56f2-4ec6-b4ae-d2c601e8caa5
InstallationDate: Installed on 2014-08-28 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64
(20140722.2)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lono wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
0 VESA VGA
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic
root=UUID=98ea3432-7344-4034-8652-46e5edf53f5b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.8
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.40
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
ahb, given the new information you provided, please ignore the request
to file this upstream. For now, let this be assigned to the cpufreqd
package for the specialist on that to review.
As well, would you be able to provide more information on your use of
cpufreqd (was it installed by default, did you configure it in any way,
etc.).
** Description changed:
- On Ubuntu:
- lsb_release -a
- No LSB modules are available.
- Distributor ID: Ubuntu
- Description:Ubuntu 14.04.1 LTS
- Release:14.04
- Codename: trusty
-
- uname -a
- Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
-
- on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
- cpufreq-info
+ With my Intel CPU scaling does not work out of the box. The problem is that
although the hardware limits are correctly detected only the range between
3.50 and 3.50 GHz is used:
+ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
- driver: acpi-cpufreq
- CPUs which run at the same hardware frequency: 0
- CPUs which need to have their frequency coordinated by software: 0
- maximum transition latency: 10.0 us.
- hardware limits: 1.60 GHz - 3.50 GHz
- available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
- available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
- current policy: frequency should be within 3.50 GHz and 3.50 GHz.
- The governor ondemand may decide which speed to use
- within this range.
- current CPU frequency is 3.50 GHz.
- cpufreq stats: ...
+ driver: acpi-cpufreq
+ CPUs which run at the same hardware frequency: 0
+ CPUs which need to have their frequency coordinated by software: 0
+ maximum transition latency: 10.0 us.
+ hardware limits: 1.60 GHz - 3.50 GHz
+ available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
+ available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
+ current policy: frequency should be within 3.50 GHz and 3.50 GHz.
+ The governor ondemand may decide which speed to use
+ within this range.
+ current CPU frequency is 3.50 GHz.
+ cpufreq stats: ...
- The problem is that although the hardware limits are correctly detected
- only the range between 3.50 and 3.50 GHz is used.
+ WORKAROUND: Uninstall package cpufreqd.
- A workaround that works on all of my systems is:
- cat cpufreq_workaround.sh
+ WORKAROUND: cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
- driver: acpi-cpufreq
- CPUs which run at the same hardware frequency: 0
- CPUs which need to have their frequency coordinated by software: 0
- maximum transition latency: 10.0 us.
- hardware limits: 1.60 GHz - 3.50 GHz
- available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
- available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
- current policy: frequency should be within 1.60 GHz and 3.50 GHz.
- The governor ondemand may decide which speed to use
- within this range.
- current CPU frequency is 1.60 GHz.
+ driver: acpi-cpufreq
+ CPUs which run at the same hardware frequency: 0
+ CPUs which need to have their frequency coordinated by software: 0
+ maximum transition latency: 10.0 us.
+ hardware limits: 1.60 GHz - 3.50 GHz
+ available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
+ available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
+ current policy: frequency should be within 1.60 GHz and 3.50 GHz.
+ The governor ondemand may decide which speed to use
+ within this range.
+ current CPU frequency is 1.60 GHz.
...
-
- This issue persisted over all dist-upgrades since installing Ubuntu
- 14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
I will try a BIOS upgrade on this machine later on.
However, I doubt it will change anything since I have to totally different
machines exhibiting the same problem (and it worked on the machine above an
12.04.5):
Machine 1: Lenovo X230 Laptop
Machine 2: Different desktop computer
Information for both machines is attached.
** Attachment added: information_laptop_desktop2.tgz
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1390902/+attachment/4257082/+files/information_laptop_desktop2.tgz
--
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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
HibernationDevice: RESUME=UUID=1968620e-56f2-4ec6-b4ae-d2c601e8caa5
InstallationDate: Installed on 2014-08-28 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64
(20140722.2)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lono wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
0 VESA VGA
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic
root=UUID=98ea3432-7344-4034-8652-46e5edf53f5b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.8
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
ahb, just to clarify, this report is only scoped to the Z77 Extrem4 hardware,
not any other. If you are having a problem with different hardware, please file
a new report, one per hardware combination, via a terminal:
ubuntu-bug linux
As well, please do not tar or compress files as it makes it harder for
developers to help you.
** Attachment removed: information_laptop_desktop2.tgz
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1390902/+attachment/4257082/+files/information_laptop_desktop2.tgz
--
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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
HibernationDevice: RESUME=UUID=1968620e-56f2-4ec6-b4ae-d2c601e8caa5
InstallationDate: Installed on 2014-08-28 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64
(20140722.2)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lono wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
0 VESA VGA
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic
root=UUID=98ea3432-7344-4034-8652-46e5edf53f5b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.8
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
I'll comply to Ubuntu's bug procedure(s).
Yet, I think it is important from a developers point of view to know from the
start that this issue is not related to a specify HW, but rather a more general
problem (i.e. at least concerning the Z77 desktop, the X230 laptop and the Z87
desktop).
Unfortunately, it is not possible to add multiple files to a single
comment.
--
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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
HibernationDevice: RESUME=UUID=1968620e-56f2-4ec6-b4ae-d2c601e8caa5
InstallationDate: Installed on 2014-08-28 (72 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS Trusty Tahr - Release amd64
(20140722.2)
IwConfig:
eth0 no wireless extensions.
eth1 no wireless extensions.
lono wireless extensions.
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
0 VESA VGA
1 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic
root=UUID=98ea3432-7344-4034-8652-46e5edf53f5b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-39-generic N/A
linux-backports-modules-3.13.0-39-generic N/A
linux-firmware 1.127.8
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.40
dmi.board.name: Z77 Extreme4
dmi.board.vendor: ASRock
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Bug persists after BIOS update: sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date P2.90 07/11/2013 cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpuf...@vger.kernel.org, please. analyzing CPU 0: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 10.0 us. hardware limits: 1.60 GHz - 3.50 GHz available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10 GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 3.50 GHz and 3.50 GHz. The governor ondemand may decide which speed to use within this range. current CPU frequency is 3.50 GHz. cpufreq stats: 3.50 GHz:99,99%, 3.50 GHz:0,00%, 3.40 GHz:0,00%, 3.20 GHz:0,00%, 3.10 GHz:0,00%, 3.00 GHz:0,00%, 2.80 GHz:0,00%, 2.70 GHz:0,01%, 2.50 GHz:0,00%, 2.40 GHz:0,00%, 2.30 GHz:0,00%, 2.10 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.70 GHz:0,00%, 1.60 GHz:0,00% (5) analyzing CPU 1: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 1 CPUs which need to have their frequency coordinated by software: 1 maximum transition latency: 10.0 us. hardware limits: 1.60 GHz - 3.50 GHz available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10 GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 3.50 GHz and 3.50 GHz. The governor ondemand may decide which speed to use within this range. current CPU frequency is 3.50 GHz. cpufreq stats: 3.50 GHz:99,97%, 3.50 GHz:0,00%, 3.40 GHz:0,00%, 3.20 GHz:0,00%, 3.10 GHz:0,00%, 3.00 GHz:0,00%, 2.80 GHz:0,01%, 2.70 GHz:0,00%, 2.50 GHz:0,00%, 2.40 GHz:0,00%, 2.30 GHz:0,00%, 2.10 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.70 GHz:0,00%, 1.60 GHz:0,02% (8) analyzing CPU 2: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 2 CPUs which need to have their frequency coordinated by software: 2 maximum transition latency: 10.0 us. hardware limits: 1.60 GHz - 3.50 GHz available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10 GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 3.50 GHz and 3.50 GHz. The governor ondemand may decide which speed to use within this range. current CPU frequency is 3.50 GHz. cpufreq stats: 3.50 GHz:99,97%, 3.50 GHz:0,00%, 3.40 GHz:0,00%, 3.20 GHz:0,00%, 3.10 GHz:0,00%, 3.00 GHz:0,01%, 2.80 GHz:0,00%, 2.70 GHz:0,00%, 2.50 GHz:0,01%, 2.40 GHz:0,00%, 2.30 GHz:0,00%, 2.10 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.70 GHz:0,00%, 1.60 GHz:0,00% (6) analyzing CPU 3: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 3 CPUs which need to have their frequency coordinated by software: 3 maximum transition latency: 10.0 us. hardware limits: 1.60 GHz - 3.50 GHz available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10 GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 3.50 GHz and 3.50 GHz. The governor ondemand may decide which speed to use within this range. current CPU frequency is 3.50 GHz. cpufreq stats: 3.50 GHz:99,98%, 3.50 GHz:0,00%, 3.40 GHz:0,00%, 3.20 GHz:0,00%, 3.10 GHz:0,00%, 3.00 GHz:0,00%, 2.80 GHz:0,00%, 2.70 GHz:0,00%, 2.50 GHz:0,00%, 2.40 GHz:0,00%, 2.30 GHz:0,00%, 2.10 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.70 GHz:0,00%, 1.60 GHz:0,02% (3) analyzing CPU 4: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 4 CPUs which need to have their frequency coordinated by software: 4 maximum transition latency: 10.0 us. hardware limits: 1.60 GHz - 3.50 GHz available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10 GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00 GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance current policy: frequency should be within 3.50 GHz and 3.50 GHz. The governor ondemand may decide which speed to use within this range.
[Kernel-packages] [Bug 1390902] Re: [Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
ahb, could you please test the latest upstream kernel available from the
very top line at the top of the page (the release names are irrelevant
for testing in your release) following
https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional
upstream developers to examine the issue.
If the test did not allow you to test to the issue (ex. you couldn't boot into
the OS) please make a comment in your report about this, and continue to test
the next most recent kernel version until you can test to the issue. Once
you've tested the upstream kernel, please comment on which kernel version
specifically you tested. If this bug is fixed in the mainline kernel, please
add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER
where VERSION-NUMBER is the version number of the kernel you tested exactly
shown as:
kernel-fixed-upstream-3.18-rc4
This can be done by clicking on the yellow circle with a black pencil
icon next to the word Tags located at the bottom of the bug description.
If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER
Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.
** 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/1390902
Title:
[Z77 Extreme4] scaling_min_freq wrong on my Intel CPU
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
On Ubuntu:
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:Ubuntu 14.04.1 LTS
Release:14.04
Codename: trusty
uname -a
Linux desk 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
on all my Intel Core i5 or i7 systems (desktop and laptop) CPU scaling does
not work out of the box:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 3.50 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 3.50 GHz.
cpufreq stats: ...
The problem is that although the hardware limits are correctly
detected only the range between 3.50 and 3.50 GHz is used.
A workaround that works on all of my systems is:
cat cpufreq_workaround.sh
#!/bin/sh
min_freq=$(cat
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies | awk {
print \$NF })
echo Setting scaling_min_freq to $min_freq
for i in `seq 0 7`; do echo $min_freq
/sys/devices/system/cpu/cpu$i/cpufreq/scaling_min_freq; done
afterwards:
cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpuf...@vger.kernel.org, please.
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.60 GHz - 3.50 GHz
available frequency steps: 3.50 GHz, 3.50 GHz, 3.40 GHz, 3.20 GHz, 3.10
GHz, 3.00 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.30 GHz, 2.10 GHz, 2.00
GHz, 1.90 GHz, 1.70 GHz, 1.60 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave,
performance
current policy: frequency should be within 1.60 GHz and 3.50 GHz.
The governor ondemand may decide which speed to use
within this range.
current CPU frequency is 1.60 GHz.
...
This issue persisted over all dist-upgrades since installing Ubuntu
14.04.1.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: ahb3853 F pulseaudio
/dev/snd/controlC0: ahb3853 F pulseaudio
Date: Sun Nov 9 13:54:23 2014
