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