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- Content .- Fans (15) .- Knowledge Base  . 



KDE Other Utility

Score 87%



Link:  http://
Minimum required   KDE 4.x
Downloads:  2575
Submitted:  May 20 2008
Updated:  Nov 19 2011


KOSD is a simple framework for the KDE Desktop providing an OSD in response to media key presses.

How to install:

Step 1:
If you have an older version of KOSD already installed, remove it completely before proceeding.

Step 2:
To build and install KOSD change to the extracted source directory and type:

mkdir build && cd build
cmake -DCMAKE_INSTALL_PREFIX=`kde4-config --prefix` ..
make install (as root)

Step 3:
Log out and back in to make sure the modules are loaded correctly by KDED (or run kquitapp kded && kded4).

Step 4:
In System Settings go to Shortcuts and Gestures->Global Keyboard Shortcuts. Select KOSD from the components list and reassign your keys as needed.

Step 5:
Go to Workspace Appearance->On-Screen Display to adjust KOSD to your liking.

That's it. Enjoy!

P.S.: Don't like monochrome icons? Then create the file .kde4/share/config/kosd_keysrc. Put the lines


in it and restart the KOSD Keys service.

You can also set the mixer control by adding the line


where name is the name of your desired control (e.g. Master, PCM, ...).


Changelog from 0.8.0 to 0.8.1
* Fixed some power management issues

Changelog from 0.7.1 to 0.8.0
* Added standard methods for battery, brightness and volume, allowing the pixmaps to be kept in memory, which avoids hard disk reads and makes the OSD more responsive

Changelog from 0.7.0 to 0.7.1
* Fixed a possible crash, if no mixer control named "Master" exists

Changelog from 0.6.2 to 0.7.0
* Changed KOSD Keys Service to use ALSA directly instead of relying on KMix

Changelog from 0.6.1 to 0.6.2
* Fixed CMakeLists.txt not to link against libsolidcontrol which is no longer used

Changelog from 0.6.0 to 0.6.1
* Made KOSD Keys Service compatible with KDE SC 4.6

Changelog from 0.5.1 to 0.6.0
* Added support for (Plasma-themed) SVG icons
* Many improvements throughout the code

Changelog from 0.5.0 to 0.5.1
* Fixed the mixer to always use the correct master channel

Changelog from 0.4.2 to 0.5.0
* Split up the monolithic application into a KDED module for the OSD, a KDED module for the key listener, a system settings module and a simple access library allowing any application to use the OSD
* Replaced the old OSD by new, fully Plasma based OSDs. There's now a "standard" OSD similar to the old one and a "compact" OSD similar to the OSDs provided by KMix and Powerdevil

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 More suggestions

 by Baldrun on: May 28 2008
Score 50%

* Would be nice to have different icons for Volume Up and Volume Down (actually for any Up and Down alteration). Kal provides this by displaying a "+" or a "-" in the icon. Just check out the icons in the kal source package. http://kde-apps.org/content/show.php/Kal?content=23472

* Being able to add a OSD for user-defined events, for example: I am using a script to toggle the touchpad on/off. Now it would be nice if kosd could display the toggle events: "Touchpad disabled" and "Touchpad enabled" when the script is executed.

I hope my suggestions don't start to bug you ;-) I really do like the idea of kosd and have been looking for something like this for quite some time now. kal and kmilo are nice, but both have their limits.

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 by lean205 on: May 28 2008
Score 50%

Nice job with the new update!

I've two questions:
1) I've configured the "Show Brightness" OSD with XF86BrightnessAdjust that is used when I push up or down the brightness. The problem is that the OSD is shown only if I raise up the brightness... and it doesn't apper when I low down it... why??
2) The volume and mute OSD are working good. But the mute mutes a device and the up/down change the volume in anothe device. How to decide which device should be work with?

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 Re: questions

 by marcel83 on: May 29 2008
Score 50%

This is a general limitation of KDE/Qt/X11. I'm having the same problem. When a XF86* event is mapped to two or more keys, then KDE will only report one of them (on my system it's always the one with the smaller keycode). I worked around this problem by assigning my brightness keys to two different and otherwise unused XF86* codes (in my case XF86Launch0/1) and then setting those in the KOSD configuration dialog.

This is a bug in 0.1.3 (although not everyone is affected by it). It should be fixed in 0.2 (which I will release soon).

Reply to this


 Very nice update

 by Baldrun on: May 30 2008
Score 50%

I must say you did a great job adding new functionality to kosd. I really like the way you added icon theme support and the Up/Down action icons.

An updated ebuild can be found here:


Reply to this


 Wrong "slider"

 by RGBkde on: May 30 2008
Score 50%

I just installed version 0.2 on my Fedora 8, 64 bits. KOSD shows the value of "Headphone" output, but the main volume is controlled by PCM.
The "Mixer device" option under Behavior gives me only one option: HDA Intel (I'm running everything on a laptop Toshiba Satellite)
I must admit that I have some troubles with the sound card, specially for recording, so maybe is my problem. Any idea?
Thanks for this great app!

Reply to this


 Re: Wrong "slider"

 by marcel83 on: May 30 2008
Score 50%

This is partly a problem with KOSD. KOSD allow you to select your mixer device (basically your sound card, if you have more than one) but you cannot select which channel to use on the selected device. The problem is that KMix doesn't provide any information concerning the output channels to other apps and so KOSD currently always controls the first channel, which on most (but unfortunately not all) cards is the 'Master' channel.

I've been thinking about adding an option allowing users to manually select a channel, however since KMix doesn't provide any information about which channels are available or how they are called ('Master', 'PCM', etc.) it's not so easy to provide a selection box in KOSD's configuration dialog. So all that's possible would be for KOSD to find out which channels are available and let the user select one. However the channels could only be identified as 'Channel 0', 'Channel 1' etc. which isn't really very user friendly.

Anyway, I'll see what can be done about this. I'll try to come up with at least some kind of solution for the next release.

Reply to this


 Re: Re: Wrong "slider"

 by lean205 on: May 31 2008
Score 50%

Thank you again Marcel.
It's so strange as for me the buttons up/down volume works correctly but:
while the OSD for down volume is ok, when I raise up, it shows the volume of another channel, even if the volume is raised up correctly for the right channel.
whoaaa, I'll wait for the new version

Reply to this



 by shevegen on: May 30 2008
Score 50%

Small, neat and useful. I like those apps.

We need killer apps like ktorrent, amarok, k3b, but we also need small apps which have a great quality and do one (or a few) tasks very good :)

Reply to this


 KOSD doesn't work

 by casdar on: Jun 1 2008
Score 50%


I'm a new Kubuntu user. I didn't have problems with the kmilo OSD until I changed the global shortcuts. After that, the OSD didn't appear (although the keyboard shortcut is good), so I searched for another OSD aplication.
I found KOSD, and after some fixes (install somethings), I installed KOSD.

To run, I typed in the Konsole: kosd -configure, and the OSD configuration window appeared, and I set some features, but after I click on apply, and when I typed the keyboard shortcut, for example to raise volume, nothing appears, no OSD notification about the change of volume does not appear.

What's the problem?

Reply to this


 Re: KOSD doesn't work

 by nos4ah2 on: Jun 4 2008
Score 50%

I've got the same exact problem here. Kmilo worked until global shortcut changed and then shortcut still worked but no OSD. Installed KOSD and I get nothing different.

Reply to this


 Re: KOSD doesn't work

 by marcel83 on: Jun 4 2008
Score 50%

What shortcuts are you using?
Did you set up your shortcuts in the KOSD configuration dialog?

Reply to this

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