How to add a second monitor in Xorg?

How to add a second monitor in Xorg?

Usually it is as simple as defining monitors in Xorg configuration files. Be aware, most desktop environments, window managers, and graphical toolkit require the xinerama USE flag to be enabled in order to support multiple monitors. When preparing to add second (or third!) monitor to the system, be sure to add this flag to /etc/portage/make.conf :

How to add a second monitor in Gentoo?

When preparing to add second (or third!) monitor to the system, be sure to add this flag to /etc/portage/make.conf : Next rebuild the @world set . The basic procedure is defining one “Monitor” section per Monitor and then tying everything together in a “Device” section that specifies the video chip driving the monitor (s).

How to set up multiple monitors in Linux?

Step 1: Install Your Hardware. the title explains it. i’m assuming you know how to open the case and install the cards. just make a note of which card is where and which monitor is on which card. FYI: my system uses one Nvidia riva tnt2, one nvidia riva tnt, and one 3dfx voodoo3. (in that order on the pci bus)

What is the procedure for creating multiple monitors?

The basic procedure is defining one “Monitor” section per Monitor and then tying everything together in a “Device” section that specifies the video chip driving the monitor(s).

Why does xorg.0.log have to be read?

Xorg.0.log has to be read in order to get possible monitor resolutions, define a few modes with xrandr, and then choose a video mode with xrandr. There is nothing user friendly about the process.

Where is the configuration file for Xorg stored?

For the following examples, Xorg’s configuration is presumed to be stored in /etc/X11/xorg.conf.d (no /etc/X11/xorg.conf file will be used). Alternatively, if the user desires, all files defined in the xorg.conf.d folder can be combined together to form an xorg.conf.

Why is my second monitor not detected by dmesg?

The configuration was working out-of-the-box on Windows 10 and Debian 10. I could not find anything obviously wrong in the dmesg output. (edit) I also tried to change grub to add nomodeset it does not make any difference.

Why is second monitor not detected in Ubuntu 20.04?

It seems to be a common issue but I could not find a solution. just clean installed Ubuntu 20.04 Desktop and updated it with the “Software & updates” tool.

Can a Xorg be used as a command line tool?

Anything passing for a modern Xorg has autoconfiguration and RandR extension which means that it should just work and any configuration can be done either via xrandr command line tool or a graphical tool provided by your desktop environment assuming you’re using one. Nevertheless this article can prove useful for legacy or advanced use cases.