** Description changed: Hi, I'm working with the M4600 and Ubuntu 11.04-64bit with Bios Rev A04. I have some problems with the cpu frequency scaling. I got the Intel i7-2720QM, which is supposed to run at 2.2Ghz without Intel Turbo Boost. The problem is the cpu speed is limited by the bios to 1.8 Ghz. I'm using a Dell Advanced E-Port Docking station. Yesterday when I undocked the Laptop as it was in use, I could monitor the scaling_max_freq going up from 800Mhz to 1.8Ghz in 100Mhz steps. As I docked the laptop back in the scaling_max_freq changed to 2.2Ghz and I could monitor with turbostat and i7z that the frequency could be reached and by putting some load on the cpu Intel Turbo Boost kicks in and cpu reaches speeds up to 3.3Ghz. After I rebooted the system everything went back to the bios limit of 1.8Ghz. I tried again to undock and dock the notebook but nothing changed. I also tried this without the dock but still the same problem. Can somebody help me please? - cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq + cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq ***************** - 1800000 + 1800000 **************** cat /sys/devices/system/cpu/cpu0/cpufreq/bios_limit **************** - 1800000 + 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 : 4390.92 - clflush size : 64 - cache_alignment : 64 - address sizes : 36 bits physical, 48 bits virtual - power management: + **************************************** + 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 : 4390.92 + clflush size : 64 + cache_alignment : 64 + address sizes : 36 bits physical, 48 bits virtual + power management: ********************************* - cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies + cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies ********************************* - 2201000 2200000 2000000 1900000 1800000 1700000 1600000 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000 + 2201000 2200000 2000000 1900000 1800000 1700000 1600000 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000 ********************************* - cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver + cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver ****************************** - acpi-cpufreq + acpi-cpufreq ****************************** + + 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.
** Description changed: - Hi, - - I'm working with the M4600 and Ubuntu 11.04-64bit with Bios Rev A04. I - have some problems with the cpu frequency scaling. I got the Intel - i7-2720QM, which is supposed to run at 2.2Ghz without Intel Turbo Boost. + I filed this bug on behalf of kluessi. I'm working with the M4600 and + Ubuntu 11.04-64bit with Bios Rev A04. I have some problems with the cpu + frequency scaling. I got the Intel i7-2720QM, which is supposed to run + at 2.2Ghz without Intel Turbo Boost. The problem is the cpu speed is limited by the bios to 1.8 Ghz. I'm using a Dell Advanced E-Port Docking station. Yesterday when I undocked the Laptop as it was in use, I could monitor the scaling_max_freq going up from 800Mhz to 1.8Ghz in 100Mhz steps. As I docked the laptop back in the scaling_max_freq changed to 2.2Ghz and I could monitor with turbostat and i7z that the frequency could be reached and by putting some load on the cpu Intel Turbo Boost kicks in and cpu reaches speeds up to 3.3Ghz. After I rebooted the system everything went back to the bios limit of 1.8Ghz. I tried again to undock and dock the notebook but nothing changed. I also tried this without the dock but still the same problem. Can somebody help me please? cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq ***************** 1800000 **************** 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 : 4390.92 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: ********************************* cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies ********************************* 2201000 2200000 2000000 1900000 1800000 1700000 1600000 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000 ********************************* cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver ****************************** acpi-cpufreq ****************************** 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 + **** 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 + 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 + 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 + 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 + 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 + 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. ** Description changed: I filed this bug on behalf of kluessi. I'm working with the M4600 and Ubuntu 11.04-64bit with Bios Rev A04. I have some problems with the cpu frequency scaling. I got the Intel i7-2720QM, which is supposed to run at 2.2Ghz without Intel Turbo Boost. The problem is the cpu speed is limited by the bios to 1.8 Ghz. I'm using a Dell Advanced E-Port Docking station. Yesterday when I undocked the Laptop as it was in use, I could monitor the scaling_max_freq going up from 800Mhz to 1.8Ghz in 100Mhz steps. As I docked the laptop back in the scaling_max_freq changed to 2.2Ghz and I could monitor with turbostat and i7z that the frequency could be reached and by putting some load on the cpu Intel Turbo Boost kicks in and cpu reaches speeds up to 3.3Ghz. After I rebooted the system everything went back to the bios limit of 1.8Ghz. I tried again to undock and dock the notebook but nothing changed. - I also tried this without the dock but still the same problem. Can - somebody help me please? + I also tried this without the dock but still the same problem. + + WORKAROUND: Adding kernel parameter: + processor.ignore_ppc=1 cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq ***************** 1800000 **************** 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 : 4390.92 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: ********************************* cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies ********************************* 2201000 2200000 2000000 1900000 1800000 1700000 1600000 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000 ********************************* cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver ****************************** acpi-cpufreq ****************************** 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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/819605 Title: Dell M4600 has problems with CPU Freq Scaling on Ubuntu 11.04 64bit. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/819605/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
