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Date:      Wed, 20 May 2015 18:41:18 +0530
From:      Avinash Sonawane <>
Subject:   Brightness control in FreeBSD 10.1-RELEASE
Message-ID:  <>

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# uname -a
FreeBSD 10.1-RELEASE FreeBSD 10.1-RELEASE #0
r274401: Tue Nov 11 21:02:49 UTC 2014  amd64

My brightness control keys don't work. When I press "Decrease
brightness" key nothing happens whereas when I press "Increase
brightness" key the continuous string of . (dot) appears on the
application running in foreground.

I tried `kldload acpi_video` but then when I tried to decrease the
brightness at first nothing happened and the suddenly brightness
dropped to minimum. Then when I tried to increase the brightness to
normal by pressing "Increase brightness" key the system went to reboot

So how do I control the brightness of my FreeBSD box?

Avinash Sonawane (RootKea)
PICT, Pune

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