Does Xfbdev support dual-head configuration??

Alex Deucher alexdeucher at gmail.com
Wed Dec 16 07:05:23 PST 2009


On Wed, Dec 16, 2009 at 8:44 AM, prudhvi raj <prudhviraj.v at gmail.com> wrote:
> I want to enable dual-head display using the KDrive tinyx server - Xfbdev
> (X11R7.5 version). I am using Nvidia graphics card with two outputs
> connected to two samsung monitors.
>
> When i boot up the system with Fedora 11, the server is auto detecting both
> monitors and both the monitors are getting up and the screen is spanned
> among the two monitors.
>
> But When i run the Xfbdev server the display is coming on only one monitor.
>
> xrandr -q is giving the below output
> Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
> default connected 1024x768+0+0 (normal left inverted right x axis y axis)
> 0mm x 0mm
>   1024x768  0.0*
>
> Why is Xrandr unable to detect the second monitor??
>
> The Xfbdev has been compiled with XINERAMA and XRANDR extensions.
>
> Should i need to configure Xfbdev in order to detect the dual head
> configuration and show the display spanned among them??

fbdev doesn't support dualhead.  You'll need to use a native driver
for your GPU.

Alex


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