[ltp] fingerprint reader heating up (t61)

[Micha]

On Tue, 25 Mar 2008 03:08:54 +0200
Micha <michf@post.tau.ac.il> wrote:

> On Mon, 24 Mar 2008 09:47:03 -0500 (CDT)
> Chris Schumann <chris@idlelion.net> wrote:
> 
> > On Mon, 24 Mar 2008, Micha wrote:
> > 
> > > I've noticed lately that ocationally the fingerprint reader start to
> > > really heat up. Is there a way to disable it, or make sure that it
> > > doesn't work when not asked for?
> > 
> > When I use ThinkFinger on my T60, the reader sometimes gets warm. Only the 
> > reader itself gets warm to the touch. I have removed ThinkFinger which 
> > keeps it cool, but I may try it again.
> > 
> 
> thats the thing, i believe thinkfinger should only be active when pam calls
> it, and it shouldn't be doing that unless there is a login request, so why
> does it seems like it's running more then it should.
> 
> It also doesn't seem all the time.
> 
> on the other hand, the hardisk idea seems plausible. I will try checking it's
> temperature next time the fingerprint reader tries to burn me.
> 

Did some more testing, it doesn't seem to be an hardisk issue. It isn't working
much when the touchpad is heating up and removing uhci_hcd makes it cool down,
suggesting fingerprint reader.

on the other hand I noticed today that another issue I have seems to be
related. hald-addon-input goes to 100% for a long time, and it seems from what
I've seen today that this is what's driving the fingerprint reader.

Any ideas about that?

thanks

> > Chris
> >