On Wed, 5 Aug 2015 23:23:35 -0300
Beco <r...@beco.cc> wrote:

> Hi guys,
> 
> Something odd happened today, on my first clean boot of the day.
> (notebook DELL vostro v131)
> 
> Simply, no wlan0 at all.
> 

there is often a hardware switch which disables WLAN.

Is it possible that it's been turned off ?

lspci should _absolutely_ show it's existence regardless of whether or not the 
drivers have been loaded.  Either it's off, if it's a separate card it's come 
loose/disconnected, or if it's on-board then you probably have a hardware 
failure.

Brian


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