Stefan Blum <[EMAIL PROTECTED]> writes: > Hi, I'm also using a x60s and would be interested to try out this patch. What > other patches did you apply to your 2.6.22 kernel, and which config did you > use?
It was against a plain 2.6.22-rc4. Stefan, I will send you my .config privately as it is large and not of much interest(?). I still recommend the patch. You do have to ignore the WARNING messages and stack traces, but they are harmless and after a little while you get used to them. > > Regards, Stefan > > On Monday 11 June 2007 12:54, John Fremlin wrote: >> Tejun Heo has made an excellent patch for saving power with the AHCI >> chipset. It saves about 1 W on my Thinkpad X60s. >> >> This patch will stop the ports when they are idle. To turn it on, >> >> echo 1 > /sys/module/libata/parameters/powersave >> >> This is very different from the patch I posted a while ago turning on >> a few bits in the CMD register (ALPE and ASP) and which Intel is >> apparently now trying. That only saves around 250mW. Tejun's patch >> saves about 1 W. It should also make the ALPE and ASP stuff irrelevant >> because it performs the same operation in software where better >> information about usage is (theoretically) available. >> >> I have updated the patch for 2.6.22-rc4. That is the extent of my >> involvement - if it works, thank Tejun Heo. But problems are quite >> likely to have been introduced by my clumsy update, so if it doesn't >> work, blame me first. > _______________________________________________ > Power mailing list > [email protected] > http://www.bughost.org/mailman/listinfo/power _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
