Dell E151FPb Monitor Question

Giganews Newsgroups
Subject: Dell E151FPb Monitor Question
Posted by:  rog…
Date: Mon, 20 May 2013

I have a Dell E151FPb LCD monitor - 15" that seems to work fine.
Strangely it has a rather large black knob (maybe 1") on front lower
right that does nothing - just rotates with no stopping point.
I have looked at pictures on the web for this monitor, and do not see
that knob in any pictures.  So I am wondering what this knob might be
for?  I thought maybe volume control, but I see no evidence of any
speaker presence.  Not any speaker connection either.

I am curious if anyone else has ever seen this monitor with this knob?

Big Fred