amd64/181357: LCD Brightness Control not working on Lenovo X121e (ACPI issue?)

[Miguel Clara]

The following reply was made to PR amd64/181357; it has been noted by GNATS.

From: Miguel Clara <miguelmclara at gmail.com>
To: bug-followup at freebsd.org, matthias at petermann-it.de
Cc:  
Subject: Re: amd64/181357: LCD Brightness Control not working on Lenovo X121e
 (ACPI issue?)
Date: Wed, 7 May 2014 00:57:33 +0100

 --047d7bae487e1f0c3d04f8c4041c
 Content-Type: text/plain; charset=UTF-8
 
 I get the same issue with an acer laptop!
 
 xbacklight gives me:
 
 No outputs have backlight property
 
 I had no luck with acpi_call though (and I've tried loading several acpi_
 modules with no luck)
 
 only workaround I have is:
 
 xrandr --output LVDS1 --brightness 0.9
 
 --047d7bae487e1f0c3d04f8c4041c
 Content-Type: text/html; charset=UTF-8
 Content-Transfer-Encoding: quoted-printable
 
 <div dir=3D"ltr">I get the same issue with an acer laptop!<br><br><div>xbac=
 klight gives me:<br><br></div><div>No outputs have backlight property</div>=
 <div><br></div><div>I had no luck with acpi_call though (and I've tried=
  loading several acpi_ modules with no luck)</div>
 
 <div><br></div><div>only workaround I have is:</div><div><br></div><div>xra=
 ndr --output LVDS1 --brightness 0.9<br></div><div><br></div>
 </div>
 
 --047d7bae487e1f0c3d04f8c4041c--