Multiple monitor, Multi-screen, Dual, Dualview, Twinhead, Twinview, Clone, Twin display, displays; howto setup.

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NOTE: For laptops with external monitors, see this page

Contents

Introduction

Multiple screens can be used with MEPIS in different configurations, but the technique varies somewhat with the graphics card.

Nvidia graphics cards

Multiple screens for Nvidia graphics cards are handled easily on the Nvidia tab of the MEPIS_X-Windows_Assistant by simply enabling Twinview and indicating whether the second monitor is to be an extended screen to the left or right, or simply a clone of the first.

It is possible to configure more complicated dual head setups by using the Nvidia-settings application that is installed when you install the Nvidia driver from Nvidia. The Nvidia-settings application can configure multiple monitors of different sizes to suit many different scenarios. To save the configs directly to your xorg.conf file, run the application as root:

kdesu nvidia-settings

You may get better results if you reset your Xorg conf by using the Xorg -configure routine before attempting an advanced configuration, as Mepis has a custom configuration already which may prevent Nvidia-settings from working correctly.

Other graphics cards

For graphics cards other than Nvidia, multiple screens are set up by manually altering the /etc/X11/xorg.conf file.

# First important step is to check if your video card will run with the final resolution(s) you require.

This especially applies to screens of 1280 x 1024 and above. The final res of a 1280 x 1024 dual-monitor setup will be 2560 x 1024. This kind of resolution is a tough call for a lot of video cards and gets harder if you are running a 3D driver setup as well. Check your card specs at these links; ATI, Intel, Matrox, NVIDIA, SIS

# Second important step is to decide what type of multiple display setup you want to achieve.

Various types include: A duplicate 2nd display (aka 'Clone Mode'), or a large single desktop (with or without 3D support): Xinerama, XRandR, etc

# Third important step is to gather all specs of your video card(s) and monitors.

Now read howtos relevant to your setup.

Tips and troubleshooting

Tips for multiple display X server setup.

  • Back up your xorg.conf file before starting!
  • Have patience, manual setup can take a long time to get right

What to do when it doesn't work out right first time.

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