Date: Tue, 2 Mar 2004 10:01:56 -0800 From: "Grover, Andrew" <andrew.grover@intel.com> To: <acpi-jp@jp.FreeBSD.org>, "Nate Lawson" <nate@root.org> Cc: current@freebsd.org Subject: RE: [acpi-jp 3093] Re: Update on ACPI with FreeBSD CURRENT on ThinkPad T30 Message-ID: <F760B14C9561B941B89469F59BA3A8470255F036@orsmsx401.jf.intel.com>
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> From: owner-acpi-jp@jp.FreeBSD.org=20 > [mailto:owner-acpi-jp@jp.FreeBSD.org] On Behalf Of Randy Bush > > Try using the sysctls from the new acpi_video module to turn off the > > backlight, perhaps by turning the brightness way down. >=20 > i am on a t40p and have tried a lot of this to no avail. My understanding is that actually turning off the backlight is not done via _BCM. But, I still don't know exactly how it *is* done. _PS3 might do it, but some people have hinted that this is something that the video driver is supposed to know how to do. Regards -- Andy
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