Hi there!

I have a Toshiba Laptop l630 (new model !, Intel i3 proc., ati radeon 4500 HD with 512 MB ...) and I have mounted Slackware 13 and windows seven as well.
What I have notice is that, running with batteries, with Slackware I can work for, more or less, 2 hours and , with Windows, more or less, 3/4 hours !!

What I have done is to read and set up trick and tips found in lesswatts.org, but I still keep seeing same results.

Does anybody know I can I manage energy save with Slack, or do you know which is the best distro for laptop in terms of power support?

Thank a lot

Mirco

i use celeron M processor and i think it don't have such problems.
Try installing distributed computing project to make use of cores and their cycles. I think that is good idea.

0 members found this post helpful.

Thanks a lot for your reply!

I was just thinking, however, at some kernel modifications or so on ..

I can't figure out why this so big difference

Ciao

Mirco

Ah! 3/4 means three to four, not three quarters!

The "on demand" CPU governor might be worth investigating along with using top to see what's active and de-configuring any of them which are not required.

Thanks for pointing that out; i was reading it literally and wondering what the problem was (apart from that this laptop was pretty useless away from the power connection).

powertop might be a better place to start; in addition have a look at actual clock frequencies over time; the easiest way to do this is to use kde system monitor (if using KDE)...I think the Gnome monitor app has the same useful feature, but I prefer the KDE one generally (probably also a similar app for most of the GUIs you might use, and you could, eg, use the KDE one under Gnome). You want to see the clock frequencies being turned down as the machine gets less busy.

I could not find a CPU frequency monitor for Xfce (although the ArchWIKI lists one and maybe the xfce4-cpugraph-plugin would display frequency as well as load ... ?) but the cpufreq-info command is good for snapshots and for showing which CPU governors are available.