Date: Thu, 29 Apr 2004 11:58:12 -0700 From: "Kevin Oberman" <oberman@es.net> To: Benjamin Close <cisbjc@cs.unisa.edu.au> Cc: freebsd-current@freebsd.org Subject: Re: VESA DPMS Driver Message-ID: <20040429185812.7578E5D07@ptavv.es.net> In-Reply-To: Your message of "Thu, 29 Apr 2004 14:50:16 %2B0930." <40909090.3050108@cs.unisa.edu.au>
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> Date: Thu, 29 Apr 2004 14:50:16 +0930 > From: Benjamin Close <cisbjc@cs.unisa.edu.au> > Sender: owner-freebsd-current@freebsd.org > > Hi All, > I like many have suffered the battery drain of the laptop screen > remaining on while the system is suspended. I've created a driver that > allows the screen to be shutdown by DPMS provided acpi supports video > mode changes. Beware, this is my first kernel driver so it's nothing > great. Hopefully it will help someone with enough knowledge build a > better driver. > > It's a loadable kernel module and the only tweak required to get it > compiling should be in the Makefile. > > You can grab it from: > http://www.clearchain.com/people/benjsc/download/vesa_dpms.tar.gz > A URL as the list strips attachments. YES! Thanks you! My T30 now suspends and turns off the back-light! Oddly, using DPMS under X with xset(1), the display blanked but the back-light stayed on. This really turns off the whole display. I believe that two of the remaining suspend/resume issues on my laptop are actually PCI issues and the other is a complete mystery. (It will only suspend once. Subsequent suspends work, but the system immediately resumes.) -- 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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