Comment 0 for bug 563156

On Karmic (2.6.31 kernel) my laptop ran silently (no fans unless really put through its paces), had long battery life (3.5 hours), and was cool.

Since upgrading to Lucid beta-2, it runs hot, the fan is always on (from cold start it's off, but quickly comes on and stays on) and battery life is less than 2 hours.

Lucid Kernel: 2.6.32-20-generic #30-Ubuntu SMP Mon Apr 12 15:20:57 UTC 2010 x86_64 GNU/Linux

Laptop: Dell Studio 1555 with ATI graphics (but using OS driver).

Happy to help try things -- be great to get my laptop working properly again!

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-20-generic 2.6.32-20.30
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-20.30-generic
Uname: Linux 2.6.32-20-generic x86_64
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
 /dev/snd/controlC0: rich 1570 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
 Card hw:0 'Intel'/'HDA Intel at 0xfc500000 irq 22'
   Mixer name : 'IDT 92HD73C1X5'
   Components : 'HDA:111d7675,102802be,00100103'
   Controls : 17
   Simple ctrls : 11
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfc010000 irq 17'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100100'
   Controls : 4
   Simple ctrls : 1
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [off]
Date: Wed Apr 14 17:09:00 2010
HibernationDevice: RESUME=UUID=239d369d-8a8a-4e3d-9770-7bb31c74f6af
InstallationMedia: Xubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Dell Inc. Studio 1555
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-20-generic root=UUID=edd57646-e882-4fe3-9eaa-68bf2f74ce09 ro quiet splash acpi=noapic
 PATH=(custom, user)
RelatedPackageVersions: linux-firmware 1.33

SourcePackage: linux 07/03/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07 0C234M
dmi.board.vendor: Dell Inc.
dmi.board.version: A07
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd07/03/2009:svnDellInc.:pnStudio1555:pvrA07:rvnDellInc.:rn0C234M:rvrA07:cvnDellInc.:ct8:cvrA07: Studio 1555
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.