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I've seen that on vaio's laptop under windows, sony have a program where you can easily desactivate unused devices to save power by one click...

I found it interesting for :
wlan
ethernet
bluetooth
usb ?
express cards reader...


Perhaps at the begining the user had to set up the different module name in the widget...

This should probably be incorporated into powerdevil profiles rather than using a stand-alone applet.

Great idea,

at the moment you could resolve this issue with a script..... it is not that user firendly, but its working...

yep, it must be under power devil.

In best case, all unused devices should be disabled. But in real life, auto-disable-if-unused option would be best, per profile basis. With easy way to reenable them at any time.

There's a plasmoid like that for EeePC: http://kde-look.org/content/show.php/Ee ... ent=102944

Doesn't HAL automatically unload unused modules already? Or udev or something like that?

In development -- at least for wireless devices: http://blog.nixternal.com/2009.08.24/ta ... -with-kde/

I wouldn't include that little hack I did as an "In Development" status. I just spoke with Will Stephenson and it seems the wireless functions are or will be included in Network Manager. So keep an eye out on a distro near you

It sounds like a great idea. Windows used to support "hardware profiles", which would provide different activated devices, that the user could select at start-up. One-click is even better.

I definitely could use this feature when operating on battery power or if I'm in a public place where I don't want to disturb people.

It would be very good if there was a tick box for bluetooth and wlan in the Power Management plasmoid.

At the moment I have to run
echo 0 > /sys/class/rfkill/rfkill0/state
echo 0 > /sys/class/rfkill/rfkill1/state
to change the power state. This is what I think that one for the EEEpc in the above comment does. It sucks because it needs root access.

-1
Im definetly for the option to configure such stuff.
However this shouldnt be a plasmoid. If theres a option in systemsettings, then you could make a plasmoid, that also can acess these settings.
Please dont try to put everything into plasma.

registeringsucks wrote:-1
Im definetly for the option to configure such stuff.
However this shouldnt be a plasmoid. If theres a option in systemsettings, then you could make a plasmoid, that also can acess these settings.
Please dont try to put everything into plasma.

I agree with you.

Put it into systemsettings or power devil and add control support to network-manager and/or stand alone applets.

System settings and plasmoid would be for different usage case:
- System settings is more for permanent configuration : if I never use bluetooth, I want it to be disabled.

- A plasmoid would more be for kernel modules or deamons that I want to activate sometimes but not always :
* I use wifi but only half the time.
* I sometimes print (using cups), but it's better for me if it doesn't start by default
* I have apache and mysql installed for devellopment purpose, but a don't want those daemon to start during boot

Of course I can do it with a command line, but a small plasmoid that display what is running and what is not, and can start/stop those services would be nice

For this case I have found one for my Sony VAIO notebook on http://www.basyskom.org/~eva/log_instal ... 21vnx.html

Search for "KDE Plasmoid for controlling rfkill devices from the desktop" (lower part of the page)

This works pretty well but I can not define default state on startup and so on. So I would prefer something more intelligent e.g. combined with power profiles.