How to have no mouse on a second screen

Roderick Colenbrander thunderbird2k at gmx.net
Sat Mar 29 12:03:19 PDT 2008


What you want is that the videocard is basically cut into two. The nvidia drivers (or it could also be something in the hardware) don't offer this. You can only use twinview or separate X screens like you are doing now. If you really want this behavior add a second videocard. Some hardware allows this though like ATI if I remember correctly as the card advertises itself using two pci ids.

Roderick

> Hello,
> 
> I am developping a GUI under Java/Eclipse/Rich Client Platform on a 
> Linux Fedora host.
> There is two displays :
> - a standard 1600x1200 LCD display which holds the main GUI and is used 
> by the operator
> - a Tv display connected to the analog Svideo output of the graphic card 
> (Nvidia). This Tv displays a video that is overlayed by text and 
> reticles drawn by the Java RCP application. The Tv is outside and is not 
> seen by the operator.
> 
> I use the closed source nvidia driver.
> I have configured the xorg.conf file with Xinerama.
> All works fine and I have the GUI on the LCD and the video with text and 
> reticles on the Tv.
> 
> The problem is that the mouse cursor can go on the Tv display and, in 
> this case, the operator loses its cursor and no longer knows where it is.
> 
> There should be one solution :
> configure the xorg.conf file with two server-layouts :
> - one with the LCD display and the mouse
> - an other with the Tv display with no mouse
> 
> then go in the window manager configuration file (for Fedora it is Gnome 
> and I have to modify the gdm/custom.conf file)
> and declare the two server-layout.
> 
> This works and builds two X displays :0.0 and :0.1
> 
> But Java/RCP is not able in one application to access to two displays.
> 
> So the question is :
> Is it possible to configure the X system to disable the mouse on the 
> second screen ?
> 
> 
> _______________________________________________
> xorg mailing list
> xorg at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/xorg

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