[Gigabyte EP45-UD3L] CPU frequency reported incorrectly after overclocking

[John Kuang]

The stock speed of Intel E3300 is 2.5 GHz (200*12.5). I had pushed the FSB from 200 MHz to 300 MHz in the BIOS, giving 3.75 GHz (300*12.5). However, "cat /proc/cpuinfo" and "cpufreq-info" incorrectly shows 3.33, 2.67, 2.13, 1.6 GHz, which are probably based on 266 MHz FSB (266*12.5=3.33, 266*10=2.67, 266*8=2.13, 266*6=1.6).

"dmidecode --type processor" shows it at 3.75 GHz all the time, no matter which frequency or governor was selected in CPU Frequency Scaling Monitor.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-35-generic 3.8.0-35.50
ProcVersionSignature: Ubuntu 3.8.0-35.50-generic 3.8.13.13
Uname: Linux 3.8.0-35-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC4: jkuang 2308 F.... pulseaudio
 /dev/snd/controlC3: jkuang 2308 F.... pulseaudio
 /dev/snd/controlC2: jkuang 2308 F.... pulseaudio
 /dev/snd/controlC0: jkuang 2308 F.... pulseaudio
Date: Tue Dec 17 11:16:02 2013
InstallationDate: Installed on 2012-02-02 (684 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
MachineType: Gigabyte Technology Co., Ltd. EP45-UD3L
MarkForUpload: True
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-35-generic root=UUID=9809d504-4a1e-433d-8cdb-269df2cdb3e2 ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.8.0-35-generic N/A
 linux-backports-modules-3.8.0-35-generic N/A
 linux-firmware 1.106
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-04-07 (254 days ago)
dmi.bios.date: 01/27/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F9
dmi.board.name: EP45-UD3L
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF9:bd01/27/2010:svnGigabyteTechnologyCo.,Ltd.:pnEP45-UD3L:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP45-UD3L:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EP45-UD3L
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

[penalvch (penalvch)]

John Kuang, could you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, could you please just make a comment to this.

Also, could you please test the latest upstream kernel available (not the daily folder, but the one at the top) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine 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. For example:
kernel-fixed-upstream-v3.13-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. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

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.

[John Kuang (xiphosurus)]

Unfortunately I can't run a Live USB as they don't work. My system seems to need the nvidia drivers; it crashes after booting with the nouveau driver. Should I still bother to test with a mainline kernel? Your instructions are not too clear as to exactly which version I should use.

[penalvch (penalvch)]

John Kuang, would you be able to test Trusty if you installed the nvidia drivers in it via https://help.ubuntu.com/community/BinaryDriverHowto/Nvidia ?

[John Kuang (xiphosurus)]

I can only test it if there is a way to pre-install the nvidia drivers into a Live USB. I can't upgrade my permanent raring installation as it is my main working system.

[Xvani (fredrile+launchpad)]

Hello,

this bug seems to still be present in 14.10 development.

CPU: Intel Pentium G3258
MB: Gigabyte Z97N-Gaming 5

I'm not sure whether this is purely a cosmetic issue, or if Ubuntu is actually overriding the CPU frequency

[penalvch (penalvch)]

Xvani, thank you for your comment. Unfortunately, this bug report is not scoped to you, or your problem. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into the default Ubuntu kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[penalvch (penalvch)]

John Kuang, would you be able to boot into a Utopic live environment via http://cdimage.ubuntu.com/daily-live/current/ ?

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]