[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete = Expired -- 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Expired Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
Maybe an interesting point: On Kernel 3.19.0-7 after suspending-to-ram the frequency scaling works. -- 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Incomplete Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
Marc Rene Schädler, the next step is to fully reverse commit bisect from kernel 4.0-rc1 to 4.0-rc2 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ? Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: kernel-fixed-upstream kernel-fixed-upstream-4.0-rc2 ** Tags added: needs-reverse-bisect -- 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Incomplete Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
If the question is just between 4.0-rc1 and 4.0-rc2 than this is easy: rc1 does not work rc2 does. If you want me to build kernels myself than I am sorry, but I cannot provide this information at the moment. -- 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Incomplete Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
Marc Rene Schädler, could you please test the latest mainline kernel 4.0-rc2 and advise to the results? ** Tags removed: bios-outdated-1.06 ** Tags added: latest-bios-1.06 ** 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Incomplete Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
Output of uname -a Linux marc-ebook 4.0.0-04rc2-generic #201503031836 SMP Tue Mar 3 18:37:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux I dont know how to get the actual frequency of the processor without cpupower which requires some linux-tools-* which are not available with the mainline kernel. Nonetheless the quick benchmark with octave time echo a=rand(3000);a*a; | octave -q reports less than 4 seconds, which indicates that the frequency scaling does seem to work with this kernel. -- 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Incomplete Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
OK. I upgraded the BIOS to the new version and the problem persists. ** Attachment added: output of dmidecode https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+attachment/4335317/+files/dmidecode.txt ** 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Confirmed Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
Marc Rene Schädler, thank you for reporting this and helping make Ubuntu better. As per http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=7146329swLangOid=8swEnvOid=4060 an update to your computer's buggy and outdated BIOS is available (1.06). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command: sudo dmidecode -s bios-version sudo dmidecode -s bios-release-date For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, and the information above is provided, then please mark this report Status Confirmed. Thank you for your understanding. ** Tags added: bios-outdated-1.06 regression-update ** 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Incomplete Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1427330] Re: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19
** Changed in: linux (Ubuntu) Importance: Undecided = High -- 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/1427330 Title: AMD Kaveri APU/CPU frequency scaling not working on linux 3.19 Status in linux package in Ubuntu: Confirmed Bug description: A few days ago, when Vivid was still at Linux 3.18 I tried the Linux 4.0-rc1 kernel from mainline and noticed that CPU frequency scaling would have no effect on the actual processor speed. I went back to 3.18 and everything worked fine. Now Ubuntu 15.04 moved to Linux 3.19 and it happens to have the same problem as with 4.0-rc1 from mainline. The cpufreq indicator shows that the frequencies are adapted but watch sudo cpupower monitor reveals that the AMD A10 PRO-7350B CPUs are stuck at the lowest frequency level (about 1.1GHz). This observation is confirmed by a quick benchmark using octave. The following line is executed on Linux 3.18 in less than 4 seconds, while on Linux 3.19 it needs more than 8 seconds to complete. time echo a=rand(3000);a*a; | octave -q ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-7-generic 3.19.0-7.7 ProcVersionSignature: Ubuntu 3.19.0-7.7-generic 3.19.0 Uname: Linux 3.19.0-7-generic x86_64 ApportVersion: 2.16.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: marc 2515 F pulseaudio /dev/snd/controlC0: marc 2515 F pulseaudio CurrentDesktop: Unity Date: Mon Mar 2 19:04:32 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2015-02-23 (7 days ago) InstallationMedia: Ubuntu 15.04 Vivid Vervet - Alpha amd64 (20150219) MachineType: Hewlett-Packard HP EliteBook 755 G2 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-7-generic root=UUID=1a54cd72-80fc-4716-a62e-4faa5dcc63e9 ro quiet splash vt.handoff=7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/19/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M84 Ver. 01.01 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 221C dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 63.13 dmi.chassis.asset.tag: CNU426C7YS dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM84Ver.01.01:bd05/19/2014:svnHewlett-Packard:pnHPEliteBook755G2:pvrA3009DD10303:rvnHewlett-Packard:rn221C:rvrKBCVersion63.13:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 755 G2 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1427330/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
