I have a Toshiba NB100 netbook (Intel Atom N270 CPU) and my processor is always running at 0.8GHz even when it is under load. The last kernel version that worked appropriately on my netbook was the 2.6.32-24 kernel in Lucid. All the newer kernel versions seem to be affected by this bug - I've tested newer Lucid kernels, the Maverick kernels, and the latest kernel in Natty Alpha 3 (2.6.38-5).
This problem is especially annoying because Toshiba NB100 is an Ubuntu certified netbook: www.ubuntu.com/certification/hardware/200901-1471
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AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC262 Analog [ALC262 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xd0000000 irq 44'
Mixer name : 'Realtek ALC262'
Components : 'HDA:10ec0262,1179ff7b,00100302'
Controls : 17
Simple ctrls : 9
DistroRelease: Ubuntu 11.04
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
MachineType: TOSHIBA TOSHIBA NB100
Package: linux (not installed)
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash -- console-setup/layoutcode=hu
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic 2.6.38-rc6
Regression: Yes
RelatedPackageVersions:
linux-restricted-modules-2.6.38-5-generic N/A
linux-backports-modules-2.6.38-5-generic N/A
linux-firmware 1.47
Reproducible: Yes
Tags: natty running-unity kernel-uncat regression-update needs-upstream-testing
Uname: Linux 2.6.38-5-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 10/23/2008
dmi.bios.vendor: INSYDE
dmi.bios.version: 1.20
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Portable PC
dmi.board.vendor: TOSHIBA
dmi.board.version: Base Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Insyde
dmi.chassis.version: None
dmi.modalias: dmi:bvnINSYDE:bvr1.20:bd10/23/2008:svnTOSHIBA:pnTOSHIBANB100:pvrPLL10E-00K020HU:rvnTOSHIBA:rnPortablePC:rvrBaseBoardVersion:cvnInsyde:ct10:cvrNone:
dmi.product.name: TOSHIBA NB100
dmi.product.version: PLL10E-00K020HU
dmi.sys.vendor: TOSHIBA
apport information