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Date:      Fri, 25 Mar 2016 22:02:32 +0600
From:      Dmitry Bachilo <1364@allunix.ru>
To:        freebsd-questions@freebsd.org
Subject:   How can FreeBSD work with keyboard on a dead southbridge where other systems fail?
Message-ID:  <56F56118.2070205@allunix.ru>

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So, here is the story: I have a laptop Acer Aspire 5100, which has a 
dead southbridge. In any operating system it predictibly results in 
non-working audio, usb, keyboard and touchpad. I tried Windows XP, 
Windows 7, Linux and FreeDOS. They all work ok on it except this minor 
stuff. I also obvioulsy can't access BIOS since keyboard is dead. And if 
I install FreeBSD on it ofcouse I cant skip that autoboot delay with the 
boot menu. But if system boots - the keyboards suddenly works like a 
charm, and that makes my laptop totally usable and fine (for example to 
set up ethrenet switches using cardbus serial adapter). That's a 
miracle! Or is it?

So the question is: what makes FreeBSD so different? How does it work 
with the keyboard and why no other OS uses this method then?

P.S. I even made the video about this situation and it has an image of 
this laptop's motherboard if needed. Here it is: 
https://youtu.be/JBt_fbvpGww



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