I share the same problem, though on an Edge 11" AMD Neo II (K325) with
Ubuntu 10.10 on 2.6.35-24 i386.

Running powertop indicates, that the kernel schedule may be one cause
for this as it leads to many wakeup events per second.

Here a snapshot extract with an idiling Laptop playing a MP3 file over
WLAN. Most of the time the kernel seems to be busy playing with himself.
Maybe this leads to the fan running all the time?

P-states (frequencies)
  1300 Mhz     7.2%
  1100 Mhz     0.0%
   800 Mhz    92.8%
Disk accesses:
Wakeups-from-idle per second : 355.6    interval: 15.0s
Power usage (ACPI estimate): 10.9W (1.0 hours) 
Top causes for wakeups:
  49.5% (313.0)   [Rescheduling interrupts] <kernel IPI>
  19.7% (124.3)   [kernel scheduler] Load balancing tick
   7.4% ( 46.6)   [ehci_hcd:usb1, ehci_hcd:usb2, wlan0] <interrupt>
   3.9% ( 24.9)   totem
   3.5% ( 22.1)   alsa-sink
   3.0% ( 18.9)   [extra timer interrupt]
   2.1% ( 13.3)   USB device  2-2 : USB2.0-CRW (Generic)
   2.1% ( 13.1)   [kernel core] hrtimer_start (tick_sched_timer)
   2.0% ( 12.7)   firefox-bin
   1.6% ( 10.0)   [kernel core] rtl8169_phy_timer (rtl8169_phy_timer)
   1.5% (  9.5)   ktpacpi_nvramd
   0.8% (  5.0)   syndaemon

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/670127

Title:
  Thinkpad Edge 11 fan is too loud

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to