Sure you do, or you won't be able to see anything. It might be on-board though, not a separate card.I don’t even have a card,
Exactly what kind of cable?I just plug in a split-monitor-cable to view two monitors at the same time, but this does nothing to obtain special effects because everything one do on the computer show exactly the same on both monitors.
We do need to know the type of graphics card you have.If anyone knows about this or where I can find a working driver to make it happen please post.
root@host10:~ # xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1680 x 1680
VGA-0 connected 1024x768+0+0 (normal left inverted right x axis y axis) 433mm x 271mm
1024x768 75.03*+ 70.07 60.00
1680x1050 59.95 +
1400x1050 59.98
1280x1024 75.02 60.02
1440x900 74.98 59.89
1280x960 60.00
1152x864 75.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 59.94
720x400 70.08
DVI-0 disconnected (normal left inverted right x axis y axis)
root@host10:~ #
xrandr output there seems to be an unused DVI-port on your graphics card. Why don't you plug in your second monitor there? As far as I know there are numerous adapters out there to connect a VGA (analog signal) monitor to a DVI (digital) port of a graphics card. See for example https://duckduckgo.com/?q=vga+dvi+adapterHDMI has pretty much the same signals as single link DVI-D or DVI-I, there's no DVI-A signal. Converting the digital signal to an analog VGA signal requires a scan converter. DVI->HDMI or vise verse only requires a simple plug or cable.There are HDMI to VGA adapters, although I have not tried one.