Hello everybody, I have a small update: I experience exactly the same problems after updating fglrx to ati-fglrxG01-kmp-default: 8.512_2.6.25.11_0.1-0.1 x11-video-fglrxG01: 8.512-0.1 in the meantime I also tried the radeon driver and it worked properly for the setup described below. Ciao, Fabian 2008/8/6 Fabian Scheler :

Hello everybody,

I have an IBM Thinkpad T43 with an ATI Radeon X300, I am running KDE 3.5.9 and I want to give KDE 4.1 a try. However, I want to have the same X setup as with KDE 3.5.9. I use a non-rectangular desktop with a resolution of 1400x1050 (T43) + 1280x1024 (external 17" screen), but I did not succeed to get that setup working with KDE 4.1.

All I get is the external screen completely covered with a checkerboard pattern of white and grey squares, it just seems there is just no desktop on the external screen as I can move windows there but a right click yields no context menu.

Another strange thing I experience with fglrx (under both KDE 3.5.9 and KDE 4.1) - I configured exactly one big desktop "1400x1050+1280x1024", but calling 'aticonfig --list-pairmode' always yields the following output:

aticonfig --list-pairmode Get pair modes : 2 0 1400x1050 + 1280x1024 --> 2680x1050 1 1400x1050 + 1400x1050 --> 2800x1050

Removing the later one be calling 'aticonfig --remove-pairmode=1' leads to a correct output

aticonfig --list-pairmode Get pair modes : 1 0 1400x1050 + 1280x1024 --> 2680x1050

but, of course, leaves an unchanged xorg.conf - this is obvious as there is just one pair mode configured there.

Has anybody out there experienced the same or similar problems? How did you get rid of them or did you at all? Any help and hints are appreciated! Thanks in advance! Please find more details about my configuration below.

Ciao, Fabian

For the sake of completeness - here are some fragments of my xorg.conf - as you can see, AIGLX, Xinerama and Clone Mode are disabled:

Section "ServerLayout" Identifier "MergedFBLayout" Screen 0 "aticonfig-Screen[0]" 0 0 InputDevice "Keyboard[0]" "CoreKeyboard" InputDevice "Mouse[1]" "CorePointer" Option "Clone" "off" Option "Xinerama" "off" Option "AIGLX" "off" EndSection

To setup the big desktop I use the following Device-Section:

Section "Device" Identifier "aticonfig-Device[0]" Driver "fglrx" Option "EnableMonitor" "crt1,lvds" Option "Mode2" "1280x1024" Option "DesktopSetup" "horizontal" Option "MergedNonRectangular" "true" Option "PairModes" "1400x1050+1280x1024" BusID "PCI:1:0:0" EndSection

The version of fglrx-packages are: x11-video-fglrxG01: 8.493-7.1 ati-fglrxG01-kmp-default: 8.493_2.6.25.5_1.1-2.1

The version of the core xorg-packages are: xorg-x11: 7.3-96.2 xorg-x11-server: 7.3-110.9

The linux kernel version is: 2.6.25.11-0.1

I know there is already a newer versions of the fglrx driver out but how long does it take until ati updates its repository?

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