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Old 12-30-2007, 02:09 PM   #1
duhwhat123
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comprehensive laptop power management toolset for slackware


anyone know where i can get a comprehensive power management system for laptops running slackware? lesswatts.org is a hodgepodge and confusing.
 
Old 12-30-2007, 02:49 PM   #2
jong357
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Looks like a pretty good site to me. I used Powertop on my MacBook Pro for quite awhile. Enabling the tickless timer in the kernel, several other kernel options, disabling hal polling and all sorts of other "hands-on" types of things is pretty much what you have to do in Linux. Enabling CPU frequency and setting your procs to"ondemand" is another decent 'trick'. Screen brightness, keyboard backlight.... Anything you can do manually to draw less power, the better. Not sure if your looking for an automated kind of prog but I don't believe it exists for Linux.

ATI's PowerNow wasn't working last I checked in the Linux Drivers so your kinda boned there on an ATI card. Just starting with PowerTop is a good thing to do. It will give you suggestions from within the prog to reduce power consumption and Powertop's official site has lots of info too.

http://ww.linuxpowertop.org/known.php

Last edited by jong357; 12-30-2007 at 02:51 PM.
 
Old 12-30-2007, 05:16 PM   #3
duhwhat123
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what i'd be looking for is something that can detect ac connection status, and auto dim the screen, throttle the cpu, etc(emphasis!) when it's on battery, that's all. this doesn't exist in linux?
 
Old 12-30-2007, 05:22 PM   #4
tellef
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I have the same situation as you duhwhat. I am going to check out the suggestion mentioned obove. My Lenovo is dual boot with slackware-ubuntu and in ubuntu the features you ask for are present. I do not know how to make them available in slackware yet though. If you come up with anything please post about it.
 
Old 12-30-2007, 05:36 PM   #5
duhwhat123
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also, how do you get suspend to ram working? i'd like it to suspend to ram after about 30 minutes
 
Old 12-30-2007, 07:16 PM   #6
XavierP
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On Slackware I recompile the kernel to enable all the acpi effects. At that point klaptop comes up and allows me to do all these things.
 
Old 12-31-2007, 03:56 AM   #7
tellef
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Quote:
Originally Posted by XavierP View Post
On Slackware I recompile the kernel to enable all the acpi effects. At that point klaptop comes up and allows me to do all these things.
Sound like something to go for. I will try this, but I have had some trouble with kernelcompilation and enabling too much before. Will it be successful if I start with the .config for the running (default-smp) kernel and simply tick on all the acpi options there is or do I need to be aware of something to turn off or maybe just leave off at the same time?

Thanks for the tips.
 
Old 12-31-2007, 04:11 AM   #8
H_TeXMeX_H
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When compiling a kernel, I would start with the generic kernel .config. If you have multi-processor or hyperthreading system then you would start the SMP version. Then make sure you have support for your filesystem built-in, whichever filesystem you use. I suppose most people use ext3, not because it's good, but because it's the default.

These .config files are available on the DVD or CDs 3-6 or a mirror under 'source/k', for SW 12 at least.

Last edited by H_TeXMeX_H; 12-31-2007 at 04:13 AM.
 
Old 12-31-2007, 07:15 AM   #9
duhwhat123
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anything not kde-specific?
 
Old 12-31-2007, 08:45 AM   #10
jong357
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Well... If you run gnome, the gnome-applets package has a CPU freq applet where you can throttle down your procs. If thier not being used they'll be throttled down. gnome-power-manager has your standard options that let's you decide how long to wait until blanking the screen, sleep, hibernate on both battery and AC...

If that's all you need then sure. It's out there.
 
Old 12-31-2007, 09:28 AM   #11
XavierP
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You could always start with a shiny new kernel, I follow Alien Bob's guide: http://alien.slackbook.org/dokuwiki/...kernelbuilding

It's easy to follow, trust me!
 
  


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