I have on my pc three monitor with two ati video card and for use it all i use the proprietary driver (xinerama disabled because else the opengl not work).
The problem i have is that: i use custom hotkeys for start software configured in the systemsettings but now this not work.
This work only when my cursor is on the central monitor, when the cursor are in the other monitor not work (same problem for the krunner).
In systemsettings the only monitor found are the monitor on the left.
I have no idea for resolve this.
i use debian sid (aptosid) with kde 4.9.5 on the qt-kde repo.
When i was two monitor with one video card this problem not existed.

Are you using xrandr for handling the multiple monitors (the Catalyst drivers should now handle it)?

sorry for the delay for the response
i use only amdcccle for config the monitor.

What is the output of "xrandr"?

soory for the delay XD

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Screen 0: minimum 320 x 200, current 1360 x 768, maximum 1920 x 1920
DFP1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 160mm x 90mm
   1360x768       60.0*+
   1920x1080      60.0     50.0     59.9     30.0     25.0     30.0     25.0     24.0     30.0     30.0     24.0 
   1776x1000      50.0     59.9     25.0     25.0     24.0     30.0     30.0 
   1680x1050      60.0     50.0     59.9     30.0     25.0     24.0     30.0     24.0 
   1400x1050      60.0     50.0     59.9     30.0     25.0     24.0     30.0     24.0 
   1600x900       50.0     59.9     25.0     24.0     30.0 
   1360x1024      60.0     50.0     59.9     30.0     25.0     24.0     30.0     24.0 
   1280x1024      60.0     50.0     59.9     30.0     25.0     24.0     30.0     24.0 
   1440x900       50.0     59.9     25.0     24.0     30.0 
   1280x960       50.0     59.9     25.0     24.0     30.0 
   1280x768       60.0 
   1280x720       60.0     50.0     59.9 
   1024x768       75.0     70.1     60.0 
   1152x648       50.0     59.9 
   800x600        72.2     75.0     60.3 
   720x480        60.0     59.9 
   640x480        75.0     72.8     67.0     59.9 
DFP2 disconnected (normal left inverted right x axis y axis)
CRT1 disconnected (normal left inverted right x axis y axis)


That output indicates your system has a single screen - are you using Xinerama or other similar monitor merging systems?

AMD's driver can use BigDesktop (which is similar to the Eyefinity setup on Windows), I am guessing this is the case.

I use bigdesktop because xinerama with proprietary driver not support opengl

Can you compare the output of "echo $DISPLAY" on Konsole terminals which are on each screen?

On the left monitor:

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:0.1

On the center

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:0

On the right

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:0.2

Unfortunately in this instance you have a multi head setup, which is not supported by the global shortcuts system.
Please see http://community.kde.org/Plasma/Multihead for more information.