Date: Sun, 19 Nov 2006 11:36:44 +0100 From: Richard Arends <richard@unixguru.nl> To: Kevin Oberman <oberman@es.net> Cc: freebsd-mobile@freebsd.org Subject: Re: Lenovo IBM Thinkpad T60 Message-ID: <20061119103643.GN12210@sun.unixguru.nl> In-Reply-To: <20061118223051.A1E2045051@ptavv.es.net> References: <20061118183322.GM12210@sun.unixguru.nl> <20061118223051.A1E2045051@ptavv.es.net>
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On Sat, Nov 18, 2006 at 02:30:51PM -0800, Kevin Oberman wrote: Kevin, > First, snd_hda had never been in STABLE. Okay, i thought i did see some notes about snd_hda and STABLE on 'google'. > It is quite new and was added > to CURRENT too late to be adequately tested before the freeze to prepare > for 6.2-Release. I suspect it will be MFCed fairly soon as the the > freeze on STABLE should be thawing (or might already be doing so). That will be great. > I believe that acpi_ibm should provide some fan control, but the fan is > really not much of a power sink. I found some fan control scripts for Linux which can fairly easy adapted to FreeBSD. I will look in to that real soon, or has somebody else written already a script, or is looking into it? > Make sure that you install radeontool > from ports. It will let you turn off the display (not just the > back-light) and the DAC for the video out. # radeontool light The radeon backlight looks off # radeontool light on # radeontool light The radeon backlight looks off # radeontool dac The radeon external DAC looks on # radeontool dac off # radeontool dac The radeon external DAC looks on Unfortunate it does not look to work for the T60. > Try setting hw.pci.do_power_nodriver="1" in /boot/loader.conf. That will > help (or crash the system). It works on my T43. You can then up the > value to "2" or "3". I have yet to try "2", but "3" prevents by T43 from > booting. Maybe the T60 will do better. Larger values result in more > aggressive PCI power control. Okay, i putted it on 3 and FreeBSD did not boot anymore. Value 2 works! > Finally, limiting the CPU speed while on battery is a winner. If you > use Gnome, use the CPU Frequency Scaling Monitor and kill powerd. You > can then manually set the speed. Try to enable EST. Add > hint.est.0.disabled="1" to /boot/loader. It is not a win for my system, > but it should be. That will enable it, or disable it?? hint.est.0.disabled="1" seems to me that it will disable est. I did set it anyway :) > Even though I have these on my T43, Windoows still stretches battery > quite a bit. I get about 3.5 hours on FreeBSD and about 5 on Windows. :( Thanks for your answers! -- Regards, Richard.
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