Date: Wed, 17 Nov 2004 17:43:54 -0500 From: Brad Karp <bkarp+@cs.cmu.edu> To: Kevin Oberman <oberman@es.net> Cc: mobile@freebsd.org Subject: Re: acpi_video, 5.3-RELEASE, ThinkPad X31? Message-ID: <20041117224401.CFA2643D55@mx1.FreeBSD.org> In-Reply-To: Your message of "Wed, 17 Nov 2004 13:29:01 PST." <20041117212901.456935D04@ptavv.es.net>
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Thanks for the pointer to the patch, and the sysctls. I've replicated them on my X31. Still the backlight won't power off. :-( I realize now that I shouldn't have expected any change, though: given that acpi_video isn't attaching on my box (no mention of it in dmesg), the DPMS code added to that module in the patch won't be invoked. Are there known problems with acpi_video attaching on ThinkPads of some models? How about known fixes? Thanks, -Brad, bkarp@cs.cmu.edu > On my T30 I needed to add jhb's acpi_video_dpms patch and put: > hw.acpi.reset_video=0 > hw.syscons.no_suspend_vtyswitch=1 > hw.pci.do_powerstate=1 > into /etc/sysctl.conf > > That is the only way I found to get the backlight to turn off. (I do > have acpi_video loaded, but it only seems to report on the video. I > can't sert anything.)
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