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View Full Version : [ubuntu] Excessive Fan or Hard Disk since upgrade to 12.04



ravisghosh
June 8th, 2012, 06:55 PM
Since upgrade to 12.04, I have been noticing excessive fan noise in my Dell 1555 laptop. I have dual boot and upon logging in Windows Vista, I don't find any noise and the laptop is calm.

Here is the output of sensors command.


acpitz-virtual-0
Adapter: Virtual device
temp1: +51.0C (crit = +100.0C)
temp2: +59.0C (crit = +100.0C)
temp3: +79.0C (crit = +100.0C)

radeon-pci-0100
Adapter: PCI adapter
temp1: +80.0C

Is there a way to figure out which application is causing it and how can it be prevented?

daniaix
June 13th, 2012, 09:42 PM
I encounter the same problem, which kind of graphics you have on your computer?

is this helpful?

http://ubuntuforums.org/showthread.php?t=1930450&highlight=fan

|{urse
June 13th, 2012, 09:51 PM
Hopefully you also have windows installed on that laptop.

If so, update the bios. (triple check to make sure this is indeed your model)

http://www.dell.com/support/drivers/us/en/04/DriverDetails/DriverFileFormats?c=us&s=bsd&cs=04&l=en&DriverId=R247639

If that doesn't help try this.

http://ubuntuforums.org/showthread.php?t=1036051

If that still doesn't help switch to the fglrx driver, should cool your graphics chip down on that model.

ravisghosh
June 14th, 2012, 11:03 AM
I installed fglrx-update from synaptic as I was unable to install it from Additional Drivers. Now, the laptop is much less hot and the fan doesn't make noise at all. However, I still have lower battery backup compared to Windows.

Today, I am going to update bios as you guys suggested and see how it works.

But I couldn't understand what is this DSDT thingi. I am not getting any errors as such.

ravisghosh
June 14th, 2012, 10:14 PM
I just updated the BIOS and the fan noise is back :(

Then I removed fglrx-updates and installed fglrx to see if that had any effect. After that, I ran
aticonfig --initial to get the proper xorg file.

Surprisingly, the noise was almost inaudible!

However, soon Unity crashed and now upon login all I would get is the desktop without launcher or panel. I could launch terminal by
Ctrl+Alt+T.

It seemed like xorg was getting corrupted and I tried
aticonfig --initial, but this time, I was greated with
sudo: aticonfig: command not found.

Now, I am reinstalling fglrx to see if it can help, but can't understanding why Unity is crashing and aticonfig refuses to run.