Bug #819605 “Dell M4600 has problems with CPU Freq Scaling on Ub...” : Bugs : linux package : Ubuntu

Jeff Lane  (bladernr) on 2011-08-02

affects:

ubuntu-certification → linux

Revision history for this message

kluessi (kluessej) wrote on 2011-08-02:

#1

Download full text (4.6 KiB)

Some more information

I'm using the Linux 2.6.38-10-generic kernel.

cpufreq-info
*******************************
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.20 GHz
  available frequency steps: 2.20 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 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 1.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
  cpufreq stats: 2.20 GHz:0,00%, 2.20 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.80 GHz:5,27%, 1.70 GHz:0,08%, 1.60 GHz:0,10%, 1.50 GHz:0,07%, 1.40 GHz:0,05%, 1.30 GHz:0,04%, 1.20 GHz:0,48%, 1.10 GHz:1,23%, 1000 MHz:2,11%, 900 MHz:1,58%, 800 MHz:88,98% (2956)
**************************************

Now I am running a video encode using handbrake, which will create 100% load on all cores.

Output using i7z:
************************************************************************
True Frequency (without accounting Turbo) 2194 MHz
CPU Multiplier 22x || Bus clock frequency (BCLK) 99.73 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  True Frequency 2293.73 MHz (99.73 x [23])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is 33x/32x/30x/30x
  Current Frequency 1795.92 MHz (Max of below)
        Core [core-id] :Actual Freq (Mult.) C0% Halt(C1)% C3 % C6 %
        Core 1 [0]: 1795.92 (18.01x) 87 27.8 1 0
        Core 2 [1]: 1795.91 (18.01x) 84.6 29.8 1 0
        Core 3 [2]: 1795.91 (18.01x) 83 31.1 1 0
        Core 4 [3]: 1795.91 (18.01x) 83.5 30.7 1 0

************************************************************************

cpufreq-info:
********************************************************************
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.20 GHz
  available frequency steps: 2.20 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 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 1.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 1.80 GHz.
  cpufreq stats: 2.20 GHz:0,00%, 2.20 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.80 GHz:8,71%, 1.70 GHz:0,25%, 1.60 GHz:0,24%, 1.50 GHz:0,19%, 1.40 GHz:0,16%, 1.30 GHz:0,14%, 1.20 GHz:0,53%, 1.10...

Some more information

I'm using the Linux 2.6.38-10-generic kernel.

cpufreq-info
*******************************
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.20 GHz
  available frequency steps: 2.20 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 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 1.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
  cpufreq stats: 2.20 GHz:0,00%, 2.20 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.80 GHz:5,27%, 1.70 GHz:0,08%, 1.60 GHz:0,10%, 1.50 GHz:0,07%, 1.40 GHz:0,05%, 1.30 GHz:0,04%, 1.20 GHz:0,48%, 1.10 GHz:1,23%, 1000 MHz:2,11%, 900 MHz:1,58%, 800 MHz:88,98%  (2956)
**************************************

Now I am running a video encode using handbrake, which will create 100% load on all cores.

Output using i7z:
************************************************************************
True Frequency (without accounting Turbo) 2194 MHz
  CPU Multiplier 22x || Bus clock frequency (BCLK) 99.73 MHz

Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
  TURBO ENABLED on 4 Cores, Hyper Threading ON
  True Frequency 2293.73 MHz (99.73 x [23])
  Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is  33x/32x/30x/30x
  Current Frequency 1795.92 MHz (Max of below)
        Core [core-id]  :Actual Freq (Mult.)      C0%   Halt(C1)%  C3 %   C6 %
        Core 1 [0]:       1795.92 (18.01x)        87    27.8       1       0
        Core 2 [1]:       1795.91 (18.01x)      84.6    29.8       1       0
        Core 3 [2]:       1795.91 (18.01x)        83    31.1       1       0
        Core 4 [3]:       1795.91 (18.01x)      83.5    30.7       1       0

************************************************************************

cpufreq-info:
********************************************************************
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.20 GHz
  available frequency steps: 2.20 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 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 1.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 1.80 GHz.
  cpufreq stats: 2.20 GHz:0,00%, 2.20 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.80 GHz:8,71%, 1.70 GHz:0,25%, 1.60 GHz:0,24%, 1.50 GHz:0,19%, 1.40 GHz:0,16%, 1.30 GHz:0,14%, 1.20 GHz:0,53%, 1.10 GHz:1,24%, 1000 MHz:2,07%, 900 MHz:1,53%, 800 MHz:84,93%  (6270)
*******************************************************************************

cat /proc/cpuinfo | grep MHz
*************************************************************************
cpu MHz		: 1500.000
cpu MHz		: 1800.000
cpu MHz		: 1800.000
cpu MHz		: 1000.000
cpu MHz		: 1800.000
cpu MHz		: 1800.000
cpu MHz		: 1800.000
cpu MHz		: 1800.000
*************************************************************************

Output using turbostat:
*********************************************************************
core CPU   %c0   GHz  TSC   %c1    %c3    %c6    %c7   %pc2   %pc3   %pc6   %pc7 
          85.17 1.80 2.20   9.65   0.35   0.00   4.82   0.00   0.00   0.00   0.00
   0   0  86.78 1.80 2.20   8.04   0.66   0.00   4.51   0.00   0.00   0.00   0.00
   0   4  83.30 1.80 2.20  11.53   0.66   0.00   4.51   0.00   0.00   0.00   0.00
   1   1  86.52 1.80 2.20   9.52   0.33   0.00   3.63   0.00   0.00   0.00   0.00
   1   5  87.00 1.80 2.20   9.04   0.33   0.00   3.63   0.00   0.00   0.00   0.00
   2   2  82.36 1.80 2.20  11.07   0.18   0.00   6.39   0.00   0.00   0.00   0.00
   2   6  83.73 1.80 2.20   9.70   0.18   0.00   6.39   0.00   0.00   0.00   0.00
   3   3  86.85 1.80 2.20   8.12   0.25   0.01   4.76   0.00   0.00   0.00   0.00
   3   7  84.82 1.80 2.20  10.15   0.25   0.01   4.76   0.00   0.00   0.00   0.00
********************************************************************

Revision history for this message

kluessi (kluessej) wrote on 2011-08-02:

#2

Now I booted linux kernel 3.0.0-0300rc7-generic

Same problem here.cat

/sys/devices/system/cpu/cpu0/cpufreq/bios_limit
**********************
1800000
**********************

cat /proc/cpuinfo
**************************************
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 42
model name : Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
stepping : 7
cpu MHz : 800.000
cache size : 6144 KB
physical id : 0
siblings : 8
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 x2apic popcnt aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid
bogomips : 4390.60
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
****************************************

cpufreq-info
****************************************
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.20 GHz
  available frequency steps: 2.20 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 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 1.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
  cpufreq stats: 2.20 GHz:0,00%, 2.20 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.80 GHz:18,86%, 1.70 GHz:0,16%, 1.60 GHz:0,16%, 1.50 GHz:0,25%, 1.40 GHz:0,34%, 1.30 GHz:0,38%, 1.20 GHz:0,29%, 1.10 GHz:0,45%, 1000 MHz:0,28%, 900 MHz:0,19%, 800 MHz:78,64% (1718)
****************************************

Running handbrake again.

turbostat:
******************************************
core CPU %c0 GHz TSC %c1 %c3 %c6 %c7 %pc2 %pc3 %pc6 %pc7
          89.13 1.80 2.20 7.40 0.37 0.01 3.09 0.00 0.00 0.00 0.00
   0 0 89.57 1.80 2.20 7.64 0.35 0.00 2.44 0.00 0.00 0.00 0.00
   0 4 90.52 1.80 2.20 6.70 0.35 0.00 2.44 0.00 0.00 0.00 0.00
   1 1 91.49 1.80 2.20 6.01 0.36 0.02 2.12 0.00 0.00 0.00 0.00
   1 5 88.64 1.80 2.20 8.86 0.36 0.02 2.12 0.00 0.00 0.00 0.00
   2 2 87.60 1.80 2.20 7.52 0.37 0.00 4.50 0.00 0.00 0.00 0.00
   2 6 87.11 1.80 2.20 8.01 0.37 0.00 4.50 0.00 0.00 0.00 0.00
   3 3 88.47 1.80 2.20 7.81 0.40 0.00 3.31 0.00 0.00 0.00 0.00
   3 7 89.66 1.80 2.20 6.62 0.40 0.00 3.31 0.00 0.00 0.00 0.00
******************************************

Now I booted linux kernel 3.0.0-0300rc7-generic

Same problem here.cat

/sys/devices/system/cpu/cpu0/cpufreq/bios_limit 
**********************
1800000
**********************

cat /proc/cpuinfo
**************************************
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 42
model name	: Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
stepping	: 7
cpu MHz		: 800.000
cache size	: 6144 KB
physical id	: 0
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 x2apic popcnt aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid
bogomips	: 4390.60
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management:
****************************************

cpufreq-info
****************************************
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0 1 2 3 4 5 6 7
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.20 GHz
  available frequency steps: 2.20 GHz, 2.20 GHz, 2.00 GHz, 1.90 GHz, 1.80 GHz, 1.70 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 1.80 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
  cpufreq stats: 2.20 GHz:0,00%, 2.20 GHz:0,00%, 2.00 GHz:0,00%, 1.90 GHz:0,00%, 1.80 GHz:18,86%, 1.70 GHz:0,16%, 1.60 GHz:0,16%, 1.50 GHz:0,25%, 1.40 GHz:0,34%, 1.30 GHz:0,38%, 1.20 GHz:0,29%, 1.10 GHz:0,45%, 1000 MHz:0,28%, 900 MHz:0,19%, 800 MHz:78,64%  (1718)
****************************************

Running handbrake again.

turbostat:
******************************************
core CPU   %c0   GHz  TSC   %c1    %c3    %c6    %c7   %pc2   %pc3   %pc6   %pc7 
          89.13 1.80 2.20   7.40   0.37   0.01   3.09   0.00   0.00   0.00   0.00
   0   0  89.57 1.80 2.20   7.64   0.35   0.00   2.44   0.00   0.00   0.00   0.00
   0   4  90.52 1.80 2.20   6.70   0.35   0.00   2.44   0.00   0.00   0.00   0.00
   1   1  91.49 1.80 2.20   6.01   0.36   0.02   2.12   0.00   0.00   0.00   0.00
   1   5  88.64 1.80 2.20   8.86   0.36   0.02   2.12   0.00   0.00   0.00   0.00
   2   2  87.60 1.80 2.20   7.52   0.37   0.00   4.50   0.00   0.00   0.00   0.00
   2   6  87.11 1.80 2.20   8.01   0.37   0.00   4.50   0.00   0.00   0.00   0.00
   3   3  88.47 1.80 2.20   7.81   0.40   0.00   3.31   0.00   0.00   0.00   0.00
   3   7  89.66 1.80 2.20   6.62   0.40   0.00   3.31   0.00   0.00   0.00   0.00
******************************************

Revision history for this message

Joe Burgess (joemburgess) wrote on 2011-08-03:

#3

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

Also could you run apport-collect -p linux 819605 in a terminal?

Revision history for this message

kluessi (kluessej) wrote on 2011-08-03:

#4

As I mentioned in my post before I tested linux Kernel 3.0.0-0300rc7-generic. I thought that would be the latest? Am I wrong?

Shall I run apport-collect -p linux 819605 from the 2.6.38-10-generic kernel or the 3.0.0-0300rc7-generic?

Revision history for this message

Joe Burgess (joemburgess) wrote on 2011-08-04:

#5

sorry I need to to run the latest upstream kernel. This is a kernel that has been untouched by Ubuntu and will let us figure out if the problem is in some change that Ubuntu made or in the mainline kernel given by kernel.org. And you can run the apport-collect from the 2.6.38 kernel please?

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: apport information

#6

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kluessi 1708 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xde460000 irq 53'
   Mixer name : 'IDT 92HD90BXX'
   Components : 'HDA:111d76e7,102804a3,00100102'
   Controls : 15
   Simple ctrls : 10
Card1.Amixer.info:
Card hw:1 'NVidia'/'HDA NVidia at 0xdd080000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
DistroRelease: Ubuntu 11.04
HibernationDevice: RESUME=UUID=2abc7cb1-9637-4c45-8859-b3739cf0e04d
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Dell Inc. Precision M4600
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en
PATH=(custom, no user)
LANG=de_DE.UTF-8
LC_MESSAGES=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=acf06b35-c564-41ee-829e-3506e061b833 ro reboot=pci processor.ignore_ppc=1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-10-generic N/A
linux-backports-modules-2.6.38-10-generic N/A
linux-firmware 1.52
Tags: natty
Uname: Linux 2.6.38-10-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 06/17/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 08V9YG
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd06/17/2011:svnDellInc.:pnPrecisionM4600:pvr01:rvnDellInc.:rn08V9YG:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M4600
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  kluessi    1708 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xde460000 irq 53'
   Mixer name	: 'IDT 92HD90BXX'
   Components	: 'HDA:111d76e7,102804a3,00100102'
   Controls      : 15
   Simple ctrls  : 10
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xdd080000 irq 17'
   Mixer name	: 'Nvidia GPU 14 HDMI/DP'
   Components	: 'HDA:10de0014,10de0101,00100100'
   Controls      : 16
   Simple ctrls  : 4
DistroRelease: Ubuntu 11.04
HibernationDevice: RESUME=UUID=2abc7cb1-9637-4c45-8859-b3739cf0e04d
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Dell Inc. Precision M4600
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=en
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=acf06b35-c564-41ee-829e-3506e061b833 ro reboot=pci processor.ignore_ppc=1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-10-generic N/A
 linux-backports-modules-2.6.38-10-generic  N/A
 linux-firmware                             1.52
Tags:  natty
Uname: Linux 2.6.38-10-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 06/17/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 08V9YG
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA04:bd06/17/2011:svnDellInc.:pnPrecisionM4600:pvr01:rvnDellInc.:rn08V9YG:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Precision M4600
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

tags:

added: apport-collected natty

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: AcpiTables.txt

#7

AcpiTables.txt Edit (224.2 KiB, text/plain)

apport information

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: AlsaDevices.txt

#8

AlsaDevices.txt Edit (934 bytes, text/plain)

apport information

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: AplayDevices.txt

#9

AplayDevices.txt Edit (571 bytes, text/plain)

apport information

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: BootDmesg.txt

#10

BootDmesg.txt Edit (58.3 KiB, text/plain)

apport information

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: Card0.Amixer.values.txt

#11

Card0.Amixer.values.txt Edit (2.0 KiB, text/plain)

apport information

Revision history for this message

kluessi (kluessej) wrote on 2011-08-05: Card0.Codecs.codec.0.txt

#12

Card0.Codecs.codec.0.txt Edit (8.6 KiB, text/plain)

apport information

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kluessi (kluessej) wrote on 2011-08-05: Card1.Amixer.values.txt

#13

Card1.Amixer.values.txt Edit (499 bytes, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: Card1.Codecs.codec.0.txt

#14

Card1.Codecs.codec.0.txt Edit (1.2 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: Card1.Codecs.codec.1.txt

#15

Card1.Codecs.codec.1.txt Edit (1.2 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: Card1.Codecs.codec.2.txt

#16

Card1.Codecs.codec.2.txt Edit (1.2 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: Card1.Codecs.codec.3.txt

#17

Card1.Codecs.codec.3.txt Edit (1.2 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: CurrentDmesg.txt

#18

CurrentDmesg.txt Edit (1.5 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: IwConfig.txt

#19

IwConfig.txt Edit (277 bytes, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: Lspci.txt

#20

Lspci.txt Edit (13.2 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: Lsusb.txt

#21

Lsusb.txt Edit (924 bytes, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: PciMultimedia.txt

#22

PciMultimedia.txt Edit (1.2 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: ProcCpuinfo.txt

#23

ProcCpuinfo.txt Edit (6.8 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: ProcCpuinfo_.txt

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ProcCpuinfo_.txt Edit (6.8 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: ProcInterrupts.txt

#25

ProcInterrupts.txt Edit (4.1 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: ProcModules.txt

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ProcModules.txt Edit (2.7 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: RfKill.txt

#27

RfKill.txt Edit (190 bytes, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: UdevDb.txt

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UdevDb.txt Edit (146.7 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: UdevLog.txt

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UdevLog.txt Edit (327.6 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05: WifiSyslog.txt

#30

WifiSyslog.txt Edit (204.3 KiB, text/plain)

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kluessi (kluessej) wrote on 2011-08-05:

#31

I submitted the apport-collect.

For your information I am booting ubuntu now with processor.ignore_ppc=1.
But when I run on battery the processor should not clock higher then 1.8Ghz. So I have to change boot options every time I change from battery to AC.

I will run Ubuntu Mainline Kernel 3.0.0-0300 later that day and post again my results.

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Brad Figg (brad-figg) wrote on 2011-08-15: Missing required logs.

#32

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 819605

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status:	New → Incomplete

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Jeff Lane  (bladernr) wrote on 2011-08-15:

#33

What logs are missing? I filed the bug on behalf of kluessi, from a question he'd asked regarding a certification system. He seems to have run apport-collect on 5 August according to the bug data prior to your comment.

Changed in linux (Ubuntu):
status:	Incomplete → New
status:	New → Confirmed

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Jeff Lane  (bladernr) wrote on 2011-08-15:

#34

Kluessi, now that I've re-read, perhaps you need to re-run apport-collect after booting the mainline kernel?

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kluessi (kluessej) wrote on 2011-08-15: apport information

#35

Architecture: amd64
DistroRelease: Ubuntu 11.04
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en
PATH=(custom, no user)
LANG=de_DE.UTF-8
LC_MESSAGES=en_US.UTF-8
SHELL=/bin/bash
Tags: natty
Uname: Linux 3.1.0-0301rc2-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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kluessi (kluessej) wrote on 2011-08-15:

#36

apport-collect wont let me publish all the information, because i run a mainline kernel, which is no official ubuntu kernel.

It told me to submit a bug on https://bugzilla.kernel.org/

I am new to this. So how do i publish the required information for you guys. Can I link this bug on buzilla.kernel.org?

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Vrsus Zong (szjuntao) wrote on 2011-12-12:

#37

Hi, everyone.

My laptop is also M4600 which CPU is 2820qm and running Ubuntu 11.04. I have also suffered from this problem for months: The maximum frequency of the CPU is 2.3Ghz while Ubuntu recognized it as only 1.6Ghz.
It seems that the cause of this problem is Ubuntu got wrong CPU information from BIOS.

I finally found a solution from a website - it works well on my laptop.

Edit this file:
sudo gedit /etc/default/grub

find the line of: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

adding processor.ignore_ppc=1 within the quotation mark. Let OS to ignore the wrong CPU information

save and run "sudo update-grub" in terminal, enabling the code added previously.

Restart and the problem will be solved!

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kluessi (kluessej) wrote on 2011-12-12:

#38

Hi

@Vrsus Zong:

Yeah, adding this line does the trick. The problem by adding this line is, if you use your laptop without power supply intel turbo boost is still enabled, which means the laptop reaches a power consumption of 95Watt or more. If you use your laptop at this rates the battery gets very hot. So I guess, throttling to 1.6Ghz is neccessary for mobile usage to prevent the battery from getting damaged.

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teawater (teawater) wrote on 2012-03-06:

#39

https://bugzilla.kernel.org/show_bug.cgi?id=42875

penalvch (penalvch) on 2012-04-16

description:	updated
description:	updated
description:	updated

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penalvch (penalvch) wrote on 2012-04-25:

#40

kluessi, thank you for reporting this and helping make Ubuntu better. This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command in the development release from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux <replace-with-bug-number>

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.

Please let us know your results. Thanks in advance.

tags:	added: needs-upstream-testing
Changed in linux:
importance:	Undecided → Unknown
status:	New → Unknown
Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

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kluessi (kluessej) wrote on 2012-04-26:

#41

Hi Christopher,

currently I'm still using Ubuntu 11.04 and Kernel 2.6-38-10 and, of course, the bug still exists.

On weekend I will upgrade to 12.04 and test again.

Have a nice day.

kluessi

Bug Watch Updater (bug-watch-updater) on 2012-04-27

Changed in linux:
importance:	Unknown → Medium
status:	Unknown → Confirmed

Bug Watch Updater (bug-watch-updater) on 2012-11-28

Changed in linux:
status:	Confirmed → Incomplete

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Jeff Lane  (bladernr) wrote on 2013-01-30:

#42

Hasn't been addressed by kluessi in almost a year. Closing this out.

Changed in linux (Ubuntu):
status:	Incomplete → Invalid

Jeff Lane  (bladernr) on 2013-01-31

no longer affects:

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Dell M4600 has problems with CPU Freq Scaling on Ubuntu 11.04 64bit.

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Dell M4600 has problems with CPU Freq Scaling on Ubuntu 11.04 64bit.

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