Fan always running since karmic install
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned |
Bug Description
On my Acer 6920 laptop after installing karmic today my fan seems to run at very high speeds at all times
I have heard it go from full speed to what sounds like 3/4 speed but it does not seem to go any lower
I installed GKrellM and it could not find any fan speed sensors but it was able to tell me my CPU was at a very reasonable temp
I tried changing the CPU frequency with the applet but it did not change the fan
Although on 9.04 I never had this problem neither on Windows Vista or 7
Is there anything I should try to do and is there any other information needed?
Edit: After a couple reinstalls that has changed nothing
Edit: lm-sensors cannot detect my fan speed and therefore cannot control it with that
Changed in ubuntu: | |
status: | New → Confirmed |
affects: | ubuntu → linux (Ubuntu) |
Same here, it87 sensor chip on the MB, fan speed not accessible.
Looks like a kernel problem:
[ 1286.459427] it87: Found IT8716F chip at 0x228, revision 1
[ 1286.459443] it87: in3 is VCC (+5V)
[ 1286.459446] it87: in7 is VCCH (+5V Stand-By)
[ 1286.459520] ACPI: I/O resource it87 [0x22d-0x22e] conflicts with ACPI region IP__ [0x22d-0x22e]
[ 1286.459528] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
and of course fancontrol cannot find pwm sensors and the fan is running at full speed.