I found on some forums that it could come from acpi drivers. Some users succeeded to have it working by modifying /etc/default/grub file. They had to add this line :
GRUB_CMDLINE_LINUX="acpi_enforce_resources=lax" For me it didn't work. When I rebooted, it was not better, and I got some KDE errors, and Wifi didn't work anymore. So, I removed this line. I give you the result from sensors command : ******************************************************************************************************************* mathoj...@mathojojo-pc:~$ sensors k10temp-pci-00c3 Adapter: PCI adapter temp1: +27.4°C (high = +70.0°C, crit = +90.0°C) atk0110-acpi-0 Adapter: ACPI interface Vcore Voltage: +1.21 V (min = +0.80 V, max = +1.60 V) CPU/NB Voltage: +1.15 V (min = +0.80 V, max = +1.60 V) CPU VDDA Voltage: +2.52 V (min = +2.00 V, max = +3.00 V) DRAM Voltage: +1.57 V (min = +1.40 V, max = +1.90 V) HT Voltage: +1.21 V (min = +0.80 V, max = +1.50 V) NB Voltage: +1.11 V (min = +0.90 V, max = +1.35 V) SB Voltage: +1.11 V (min = +0.80 V, max = +1.50 V) +3.3V Voltage: +3.38 V (min = +2.97 V, max = +3.63 V) +5V Voltage: +5.00 V (min = +4.50 V, max = +5.50 V) +12V Voltage: +12.11 V (min = +10.20 V, max = +13.80 V) CPU Temperature: +37.0°C (high = +40.0°C, crit = +90.0°C) MB Temperature: +40.0°C (high = +35.0°C, crit = +95.0°C) NB Temperature: +47.0°C (high = +65.0°C, crit = +95.0°C) SB Temperature: +42.0°C (high = +35.0°C, crit = +75.0°C) OPT_TEMP1 Temperature: +0.0°C (high = +0.0°C, crit = +90.0°C) OPT_TEMP2 Temperature: +0.0°C (high = +0.0°C, crit = +90.0°C) OPT_TEMP3 Temperature: +0.0°C (high = +0.0°C, crit = +90.0°C) ************************************************************************************************* What is strange, is that I don't get any Fanspeed information. And dmesg gave me this information : ******************************************************************************************************************* [ 17.224358] ACPI: resource piix4_smbus [io 0x0b00-0x0b07] conflicts with ACPI region SMRG [io 0x0b00-0x0b2f 64bit pref window] [ 17.224358] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver ******************************************************************************************************************* I hope it helps you. ** Description changed: Hello. My CPU FAN is always at 100%, even if my CPU usage is near to 0-1%. For example, now, my CPU work at 4%, the CPU temperature detected is 36°Celsius, but the FAN is always so noisy at 100% ! I don't know if this bug is hardware specific, so I give you my configuration : Kubuntu Maverick beta AMD PHENOM II 1090T (x6) ASUS CROSSHAIR IV Formula 8GB DDR3 BIOS : Cool'n'Quiet is activated (but i tested with this option off, and the problem still the same) Thank You very much + + [EDIT] + I found on some forums that it could come from acpi drivers. Some users succeeded to have it working by modifying /etc/default/grub file. They had to add this line : + + GRUB_CMDLINE_LINUX="acpi_enforce_resources=lax" + + For me it didn't work. When I rebooted, it was not better, and I got some KDE errors, and Wifi didn't work anymore. + So, I removed this line. + + I give you the result from sensors command : + ******************************************************************************************************************* + mathoj...@mathojojo-pc:~$ sensors + k10temp-pci-00c3 + Adapter: PCI adapter + temp1: +27.4°C (high = +70.0°C, crit = +90.0°C) + + atk0110-acpi-0 + Adapter: ACPI interface + Vcore Voltage: +1.21 V (min = +0.80 V, max = +1.60 V) + CPU/NB Voltage: +1.15 V (min = +0.80 V, max = +1.60 V) + CPU VDDA Voltage: +2.52 V (min = +2.00 V, max = +3.00 V) + DRAM Voltage: +1.57 V (min = +1.40 V, max = +1.90 V) + HT Voltage: +1.21 V (min = +0.80 V, max = +1.50 V) + NB Voltage: +1.11 V (min = +0.90 V, max = +1.35 V) + SB Voltage: +1.11 V (min = +0.80 V, max = +1.50 V) + +3.3V Voltage: +3.38 V (min = +2.97 V, max = +3.63 V) + +5V Voltage: +5.00 V (min = +4.50 V, max = +5.50 V) + +12V Voltage: +12.11 V (min = +10.20 V, max = +13.80 V) + CPU Temperature: +37.0°C (high = +40.0°C, crit = +90.0°C) + MB Temperature: +40.0°C (high = +35.0°C, crit = +95.0°C) + NB Temperature: +47.0°C (high = +65.0°C, crit = +95.0°C) + SB Temperature: +42.0°C (high = +35.0°C, crit = +75.0°C) + OPT_TEMP1 Temperature: +0.0°C (high = +0.0°C, crit = +90.0°C) + OPT_TEMP2 Temperature: +0.0°C (high = +0.0°C, crit = +90.0°C) + OPT_TEMP3 Temperature: +0.0°C (high = +0.0°C, crit = +90.0°C) + ************************************************************************************************* + + What is strange, is that I don't get any Fanspeed information. + + And dmesg gave me this information : + + [ 17.224358] ACPI: resource piix4_smbus [io 0x0b00-0x0b07] conflicts with ACPI region SMRG [io 0x0b00-0x0b2f 64bit pref window] + [ 17.224358] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver -- CPU fan always at 100% and noisy https://bugs.launchpad.net/bugs/640675 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs