On Mon, Jan 21, 2008 at 10:44:43AM -0700, Michael L Torrie wrote: > This thread has been enlightening, to say the least. But not super > encouraging. What I'm getting from this thread is that suspend to ram > is possible on some laptops. But it may require some assembly.
Ubuntu 7.10 just fell into place on my Thinkpad R51 (http://www.charlescurley.com/Lenovo.R51.html), including suspending. While I haven't tried suspending to RAM, suspending to hard drive works just fine. > Furthermore from what Thinkpad owners have told me (this extends to all > Linux laptops from what I can see) that battery life is well below > Windows XP on the same machine. 3 hours is considered "good" for a T61p > with a 9 cell battery. So for a variety of reasons, many of which would I get more than 4.5 hours out of my 6.6 amp-hour (??) battery. > seem to be beyond our control as Linux hackers, power management on > Linux just isn't there yet. This point of view, according to a slashdot > comment criticizing me, is FUD, but oh well. > > I recently started playing a bit with Powertop[1]. For fedora or ubuntu > users I'm sure it's in the standard repositories. aptitude install powertop Very nice, thank you. It is from Intel, so who knows what it will do on AMD processors/chipsets. > Using powertop is very interesting. I recommend that anyone with > Linux on their laptop install it and see what it says. It will > track power usage (when not on AC power), CPU states, interrupts and > so forth. On a desktop machine Actually it runs just fine while plugged in, which means it is good preparation for running on battery. While plugged in, right now my processor is running at 600 MHz 97% of the time, and 95% in C2 state, whatever that means. -- Charles Curley /"\ ASCII Ribbon Campaign Looking for fine software \ / Respect for open standards and/or writing? X No HTML/RTF in email http://www.charlescurley.com / \ No M$ Word docs in email Key fingerprint = CE5C 6645 A45A 64E4 94C0 809C FFF6 4C48 4ECD DFDB
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