So, I guess you are saying don't buy AMD???   ;-o

on 10.10 the temperature is usually in the mid 50's and seldom hits 70.
also the fan hardly ever comes on.

12.04 is usually in the 60's(c) and under high load hits about 78c, the
fan is on but it's usually quiet.

on 12.10 & 13.04 the temperature at idle is in the 80's and peaks into
the mid 90's  (I won't allow it to go higher) that is a huge difference.

The ~actual~ battery life on 10.10 is about 4 hours...  on 13.04 beta
the battery life is estimated at about 1 hour and the fan has two modes
really loud and screaming loud.

This is all on the same laptop, the only difference is the code...  The
power managment on 10.10 works great, much better than the Windows 7
that came with the laptop.  So why have we gone so far in the wrong
direction from something that was working to something that is
dangerously*  broken?   If it had always been this way, that would be
different.  But there is a huge jump between 12.04 and 12.10.  There
must be something specific that accounts for this change.


* Yes, dangerously broken...  the danger is that the laptop could be 
permanently damaged by such high heat.  

--------

After quite a bit of further testing, I'm no longer entirely sure that
the video is the only culprit.  At idle or light load, the video is
indeed 2-3 degrees hotter, but under moderate to high load the cpu gets
much hotter than the video, as much as 6 degrees hotter.  That's quite a
differential.

Thanks for your suggestions, I will take a look at the PPA.  For me
personally, 12.04 is not a good answer because neither the audio input
or bluetooth work, not much point in having a DAW  if it can't make a
sound... :-)    whereas on 13.04 so far everything seems to work except
for the temperature.

Am I the only person in the world with an AMD cpu and an Intel HDMI
audio chip???


I will test the generic kernel later today.

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https://bugs.launchpad.net/bugs/1166916

Title:
  temperature overheating probably radeon

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