Date: Sun, 1 Apr 2012 20:44:51 -0700 From: Kevin Oberman <kob6558@gmail.com> To: Hannes Mehnert <hannes@mehnert.org> Cc: matt <sendtomatt@gmail.com>, freebsd-acpi@freebsd.org, freebsd-current@freebsd.org Subject: Re: x220 notes Message-ID: <CAN6yY1v=gJHsuGQ6i08P6RC4tP_CnaVt1MWQqy2=Uy0tax0cfg@mail.gmail.com> In-Reply-To: <4F789DD7.90604@mehnert.org> References: <4E836C06.9070405@gmail.com> <4F56A2DA.2070703@gmail.com> <CAHi1JsdaM8G=27ip97a5ERFTcHZ=zJkb9sD0PniBCLc6a-4WWw@mail.gmail.com> <201204011214.38801.erichfreebsdlist@ovitrap.com> <CAN6yY1vtrWC--XRM_LB%2Bu-ACr0Xb6t3YotY30799T7qdpWJefw@mail.gmail.com> <4F789DD7.90604@mehnert.org>
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2012/4/1 Hannes Mehnert <hannes@mehnert.org>: > Hi, > > controlling brightness works for me (via shell) - taking matt's advice > into account: >> \VBRC seems to allow control over the backlight, at least, so those of > you with sore eyes or the 3-cell battery may have some success using the > acpi_call port (Danger!) >> kldload acpi_call >> acpi_call -p '\VBRC' -i n (where n is 0-16; 17 (and -1) is off) This works well, but I'll need to look at how to make Gnome do the job so the automatic dimming will work. Also, at least on my ThinkPad, its 0-15. 16 and 14 are identical and slightly dimmer than 15. Maybe it's a BIOS issue on my laptop? I see Lenovo has released a new one recently. -- R. Kevin Oberman, Network Engineer E-mail: kob6558@gmail.com
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