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



KDE Other Utility

Score 88%



Link:  http://
Minimum required   KDE 4.x
Downloads:  2560
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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 by lean205 on: Jun 4 2008
Score 50%

Great great great work! Now, with the possibility to choose the channel as well, it works 100%.

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 by RGBkde on: Jun 6 2008
Score 50%

Now volume and brightness is working. Great work!!!
Just a couple of questions:
- On the KOSD configuration you can set the "step" for the volume, but seems that this is not working: with the keyboard controls, volume jumps on 9% steps and with the mouse wheel over kmix the volume jumps on 5% steps, no matter if I set 2% on KOSD.
- The battery display is not working. KOSD points to files that doesn't exists on my system (fedora 8, 64 bits) to get the battery status, and I'm not quite sure where to look to find the right ones.
- It is highly probable that after the release of openSUSE 11 I'll switch to kde 4. Can I use KOSD there? If not, there will be a port to kde 4 soon?
Many, many thanks for your great work!!

Reply to this


 Re: Perfect!

 by marcel83 on: Jun 6 2008
Score 50%

1) Does manually changing the volume via DCOP work correctly? E.g. if you run this:
dcop kmix Mixer0 setVolume 0 50
dcop kmix Mixer0 volume 0

I know that changing the volume through KMix via DCOP doesn't work for all channels on all mixers, but that's something that's out the scope of what I can fix.
Does changing the volume step not have any effect at all? Or just the wrong effect?

2) If all necessary kernel modules are loaded and your hardware supports reporting the battery status (which probably should be the case) then the information will be available somewhere in the /sys directory. However the exact location and names of the virtual files containing the information can depend strongly on the drivers used by your system. The default path should work with the default battery driver but your system may need a more hardware-specific driver (such as acer_acpi or asus_acpi). These drivers may report the battery status through different files. See if you find a directory called BAT, BAT0 or similar in /sys and see which of the files in that directory look most appropriate. I'm afraid that's all the help I can give on this matter.

3) You can use KOSD on KDE4 as long as you have the KDE3 libraries installed. I will start porting KOSD to KDE4 once 4.1 is out (maybe earlier). I guess it shouldn't take to long to port.

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 Re: Re: Perfect!

 by RGBkde on: Jun 7 2008
Score 50%

In fact, changing the volume through DCOP doesn't work. Ok, I can live with that...
I found the files for the battery status on /sys/class/power_supply/BAT1/, and the battery monitor is working now.
About the kde4 port... This morning I did a test on the live cd for openSUSE 11 rc1, with kde 4.0.4. Unless some huge changes comes on the next two weeks, I think that I'll stay with fedora 8 for a couple of months more...
Thanks again!!!!

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 by lean205 on: Jun 7 2008
Score 50%

Sorry for disturbing you again...
I've noticed that KOSD doesn't work at the first time I boot my notebook...
Then I start kosd --configure and it crashes:

[Thread debugging using libthread_db enabled]
[New Thread 0xb5b316f0 (LWP 3290)]
[KCrash handler]
#5 0xb7453af9 in QString::QString () from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#6 0x0805a02a in Mixer::mixerDeviceName ()
#7 0x08054edc in ConfigurationDialog::setValues ()
#8 0x080551c0 in ConfigurationDialog::show ()
#9 0x080575b0 in KOSD::newInstance ()
#10 0xb77e9c26 in KUniqueApplication::processDelayed ()
from /usr/lib/libkdecore.so.4
#11 0xb77e9d83 in KUniqueApplication::qt_invoke ()
from /usr/lib/libkdecore.so.4
#12 0x08057f48 in KOSD::qt_invoke ()
#13 0xb7191a7d in QObject::activate_signal ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#14 0xb749dfae in QSignal::signal () from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#15 0xb71ad3d7 in QSignal::activate ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#16 0xb71b44a3 in QSingleShotTimer::event ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#17 0xb713415a in QApplication::internalNotify ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#18 0xb7134d36 in QApplication::notify ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#19 0xb77464d2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#20 0xb712946e in QEventLoop::activateTimers ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#21 0xb70e5584 in QEventLoop::processEvents ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#22 0xb714a720 in QEventLoop::enterLoop ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#23 0xb714a5b6 in QEventLoop::exec () from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#24 0xb7133bbf in QApplication::exec ()
from /usr/lib/qt-3.3.8b/lib/libqt-mt.so.3
#25 0x08059eea in main ()

Then I start kosd --configure again, I click on Apply and it works correctly again without any crashes.

Reply to this


 Re: Crash...

 by marcel83 on: Jun 7 2008
Score 50%

Hi. I've been able to reproduce this. It looks like KOSD crashes when you try to open the configuration dialog before KMix is running (or fully initialized). I'll fix this problem for the next release.

Reply to this


 Works great!

 by riggy on: Jun 9 2008
Score 50%

Hey there!

KOSD is a good piece of work. I have PLD Linux Distribution on my laptop. Multimedia keys aren't working out of the box but I use dcop to access kmix and xbindkeys to bind the shortcuts. KOSD seems to be great and configurable alternative to kmilo. Now I use dcop to access KOSD controls to show volume level. Brightness display also works great, but I have to call it through dcop too. Although it itsn't a problem.

Everything works just great. Thanks for this. I've been looking for something like KOSD for a long time.

Reply to this


 Nice Application

 by joethefox on: Jul 7 2008
Score 50%

Very nice application, thank you.

What do you think about to hide immediately the OSD if a mouse click event occurs (like amarok OSD does it for example), I think it'd be "the icing on the cake"


Reply to this


 Dual screen issue

 by Baldrun on: Jul 30 2008
Score 50%

Thanks for that last update. Have you been able to fix that dual screen (xinerama) placement issue yet?

Reply to this


 Re: Dual screen issue

 by marcel83 on: Jul 31 2008
Score 50%

Should be fixed in 0.2.3.
Apparently your smaller screen is set as primary screen. I of course don't know your screen arrangement, but I would consider making the bigger screen the primary one.
Best regards.

Reply to this


 Re: Re: Dual screen issue

 by Baldrun on: Aug 1 2008
Score 50%

Thanks a lot for the fast reaction.

Now kosd 0.2.3 is being displayed (properly placed 50%-50%) on my primary screen. I am using twinview for dualhead display (graphic card: nVidia Quadro FX 570M). My primary screen has the 1280x1024 resolution. Before kosd was displayed on my secondary screen (the internal laptop screen with 1920x1400) with an odd placement. Thanks for the improvement.

Really cool would be if kosd is displayed on the screen depending on where the cursor is. If the cursor is on the secondary screen kosd should be displayed on the secondary screen and vice versa. What do you think? Is this possible?

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 Re: Re: Re: Dual screen issue

 by Baldrun on: Aug 1 2008
Score 50%

Oops, I was a little fast in replying to the latest update. Sorry about that. I should have read the changelog first.

Yes indeed, it works like a charm now when activating "Screen under cursor". Placement is correct on both screens. Thanks a lot for this fix! That really makes kosd one of my favorite little helper apps.

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