FC11 RC KDE Dual Display issue

[len]

I have a FC 11 KDE test installation. I am unable to get both displays to operate independently. Both displays will act mirrored only in KDE.

In a separate FC 11 Gnome installation. I booted in mirrored display mode but easily configured independent - extended displays.

Anyone else run into this issue with KDE? I also cannot locate xorg.conf.

Thanks!

[stefan1975]

there is no xorg.conf anymore ... everything is done automagically. depending on your videocard you can set up dual screen manually. i have a nvidia card and by using the binary driver from the RPMFUSION repo (akmod-nvidia) it is easy to configure with nvidia-settings.

[len]

Unfortunately (I guess), I am using RadeonHD in my systems. In the basic install I haven't moved to the fglrx drivers yet. It would seem that will be where I need to go with the install.

[Robert2]

Originally Posted by len

Unfortunately (I guess), I am using RadeonHD in my systems. In the basic install I haven't moved to the fglrx drivers yet. It would seem that will be where I need to go with the install.

You cannot use the proprietary ATI drivers for the moment, it is not yet compatible with the F11 kernel.

I would try a bit more with the opensource driver first.

Drop to a commandline and run xrandr to check if the displays are properly detected, and your virtual display is large enough to support extended desktop.

If so, the issue is possibly the KDE display utility. You can also try to configure the displays with xrandr instead.

Also the opensource radeon driver is still in flux, new versions come out every couple of days, so perhaps you had a slightly different version with Gnome.

[len]

The displays are detected correctly but the KDE control doesn't seem to have all the controls to "clone" or let them stand alone. Gnome had that functionality. I guess it is time to brush-up on Gnome desktop again. At least until I can test the GOLD release and ATI proprietary drivers.

[isilmeraumo]

You can get it working by creating an xorg.conf file. Dual display configuration works in KDE 4.3, at least the last time I had a built kde-svn install running. I'll attach my xorg.conf file as a working example.

Section "ServerLayout"
        Identifier      "Dual Head Layout"
        Screen          0       "Default Screen"        0 0
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "Configured Video Device"
        SubSection "Display"
                Virtual 3200 1200
        EndSubSection
EndSection

Section "Device"
        Identifier      "Configured Video Device"
        Option          "monitor-DVI-I_2/analog"        "DVI-0"
        Option          "monitor-DVI-I_1/analog"        "DVI-1"
        Option          "RROutputOrder"                         "DVI-I_2"
EndSection

Section "Monitor"
        Identifier      "DVI-1"
        Option          "Position"      "1280 0"
EndSection

Section "Monitor"
        Identifier      "DVI-0"
        Option          "LeftOf"        "DVI-1"
EndSection

Section "ServerFlags"
        Option  "DontZap"       "True"
#       Option  "Xinerama"      "True"
EndSection