Date: Tue, 15 Jul 2003 14:42:36 -0700 From: "Kevin Oberman" <oberman@es.net> To: "Markus D." <sm4tnp8@gmx.net> Cc: mobile@freebsd.org Subject: Re: Turn off display/backlight Message-ID: <20030715214236.7DDAA5D08@ptavv.es.net> In-Reply-To: Message from Markus D. <sm4tnp8@gmx.net> of "Tue, 15 Jul 2003 23:13:41 %2B0200." <30885.1058303621@www53.gmx.net>
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> Date: Tue, 15 Jul 2003 23:13:41 +0200 (MEST) > From: Markus D. <sm4tnp8@gmx.net> > Sender: owner-freebsd-mobile@freebsd.org > > Hello, > > is there any way to turn off the display (aka screensaver) for the console > completely, with switching off the backlight of my laptop's lcd? I use > 5.1-Release now. With 4-stable I used the apm_saver, which did this. But now with > ACPI the apm_saver doesn't work anymore even if i turn apm on. This is a common issue with ACPI on laptops. I have it on my T30 and I have seen others with different brands and models report it. I don't have a fix at this time. (Since I don't work on ACPI code, I won't be finding it,) The work-around is to use apm and not ACPI. To switch to APM, edit /boot/loader.conf and add: apm_load="YES" Edit /boot/device.hints and add: hint.acpi.0.disabled="1" and change the value of hint.apm.0.disabled to "0" Make sure that your rc.conf contains: apm_enable="YES" Once that is done, you should be able to turn off the back-light any way you could under V4. Hopefully APM will continue to mature and these issues will get settled over a bit of time. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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