Will do! Thanks for your assistance with this. I've just installed powertop and will run the commands you mention the next time I have this issue. I'd really like to get this sorted out as I'm a huge fan of Ubuntu and it seems like this is an ongoing problem for me.
-mark On Fri, Jul 16, 2010 at 10:37 AM, David Bensimon <[email protected]>wrote: > Hello Mark, > > When the issue is present, could you please preform the following to > provide more information to kernel developers. You will need to install > the "powertop" package before doing this. > > 1) Open a terminal > 2) Run the following command > $ while true; do false; done > 3) Press Ctrl-Shift-T to open a new terminal tab > 4) Run this command: > $ sudo powertop -d -t30 > ~/powertop_output.txt > > Once powertop stops, please attach the powertop_output.txt file from > your home directory into this bug. > > -- > Dell XPS M1330 CPU scales down to 800 MHz > https://bugs.launchpad.net/bugs/605465 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in “linux” package in Ubuntu: New > > Bug description: > My Dell XPS M1330 regularly scales the CPU on demand for a few hours, then > begins to scale the 2.4 GHz CPU down to 800 MHz as the day goes on. > Selecting the performance profile will not cause the CPU to return to 2.4 > GHz. > > Selecting the older version 173 of the NVIDIA driver seemed to reduce the > frequency of this issue, though it still occurred so I have returned to the > latest driver release. I'm not sure it this is because the GPU was > generating heat that was adversely affecting the performance of the CPU but > I am monitoring the temperate of both CPU and GPU now and will watch to see > what they are when this problem arises. Does Ubuntu ever force CPU scaling > as the computer gets warmer? > > I've included an attachment describing my CPU information to this bug. > > ProblemType: Bug > DistroRelease: Ubuntu 10.04 > Package: linux-image-2.6.32-23-generic 2.6.32-23.37 > Regression: No > Reproducible: No > ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5 > Uname: Linux 2.6.32-23-generic x86_64 > NonfreeKernelModules: nvidia > AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. > Architecture: amd64 > AudioDevicesInUse: > USER PID ACCESS COMMAND > /dev/snd/controlC0: mark 1799 F.... pulseaudio > /dev/snd/pcmC0D0p: mark 1799 F...m pulseaudio > CRDA: Error: [Errno 2] No such file or directory > Card0.Amixer.info: > Card hw:0 'Intel'/'HDA Intel at 0xf6ffc000 irq 21' > Mixer name : 'SigmaTel STAC9228' > Components : 'HDA:83847616,10280209,00100201' > Controls : 28 > Simple ctrls : 18 > Date: Wed Jul 14 09:08:12 2010 > Frequency: Once a day. > HibernationDevice: RESUME=UUID=a0a67dc1-f975-484f-8666-4097a1b81276 > InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) > MachineType: Dell Inc. XPS M1330 > ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-23-generic > root=UUID=84ef7af6-2c90-4015-834c-f0fefb44c0a9 ro quiet splash > ProcEnviron: > PATH=(custom, user) > LANG=en_CA.utf8 > SHELL=/bin/bash > RelatedPackageVersions: linux-firmware 1.34.1 > SourcePackage: linux > dmi.bios.date: 11/19/2008 > dmi.bios.vendor: Dell Inc. > dmi.bios.version: A14 > dmi.board.vendor: Dell Inc. > dmi.chassis.type: 8 > dmi.chassis.vendor: Dell Inc. > dmi.modalias: > dmi:bvnDellInc.:bvrA14:bd11/19/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr: > dmi.product.name: XPS M1330 > dmi.sys.vendor: Dell Inc. > > To unsubscribe from this bug, go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/605465/+subscribe > -- Dell XPS M1330 CPU scales down to 800 MHz https://bugs.launchpad.net/bugs/605465 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
