Xinerama windows

Note: not all general options are logical for Windows or honoured by Xming. All Tools and clients also have Xming manuals. Those Saved Sessions should only use the SSH-2 protocol, 'Enable X11 forwarding' and for the following example set 'X display location' to 'localhost:0'. Many useful variables will then be inherited e.

You cannot run two X servers with the same display-number; use the :display-number option if you want multiple instances. On recent Windows versions: in order to easily use Xming's notification area icon s you should set 'Show icon and notifications', for the Xming X server icon. You could now run, for example, firefox on a remote machine like this Xming will 'serve' control and display locally Its re-usable XML configuration files also act as mini-session managers.

One X client can be selected for concurrent display from a local or remote machine. Also use XLaunch to just simply start the X server and then run several X clients later by hand, or from Xmingrc menu entries. Using the wizard to get a remote wireshark via PuTTY in -multiwindow mode You can select the windowing mode, the way sessions are started and save the configuration for later reuse.

An XLaunch configuration file can be just clicked to rerun saved settings without having to go through the wizard pages. Additionally, automatic display-number i. X server allocation is provided. Help is available for each XLaunch page via the 'Help' button, or F1, and from these links Additionally, on the icon menu, a Host Finder is provided for listing, choosing and then accessing any responding XDMCP hosts on your network, as well as a log file viewer.

Use of Plink is recommended when starting remote programs. Xmingrc is a structured text file, so to avoid errors, study the installed default Xmingrc file plus my Xmingrc file : see screenshots below. Tools and clients Many X. Also Xmon is sourced here not from X.

These additional tools are also supplied in Xming installers The executable itself is not installed. An example using Plink in a. The Run utility The Run utility is an autonomous tool used to start Windows applications with a hidden attached console command window. This is the Manual for run. When using a multi-screen configuration, screen position affects only how the mouse cursor moves from screen to screen. The screens can overlap, as shown in Figure One of the simplest uses of overlapping layouts is to drive two monitors with the same image without using a video splitter.

The ServerLayout for this configuration looks like this:. Overlapping layouts can also be used to creatively solve some tricky display problems. For example, the presentation program OpenOffice. This missing feature is vital for certain live presentations, because it permits an operator to preview and select the next slide to appear using a control screen that is not visible to the audience. Until this feature is added to Impress, overlapping Xinerama windows provide a partial solution.

When operating with the default user interface layout, Impress provides a display with three panes: a slide preview, an enlarged image of the current slide, and a task plane with layouts that can be applied to slides. By configuring the X server to display the control screen at high resolution such as x or x and the projector screen at a lower resolution x , with the projector screen positioned as a subset of the control screen, it is possible to simulate two-screen operation.

Figure shows the contents of the control screen, and Figure shows the contents of the projector screen using this configuration. The presentation operator can preview the next slide to be displayed using the Impress slide pane without disturbing the projected image. To configure this operation, set the resolution of the two screens, and then offset the projector within the control screen. In this ServerLayout section, I placed the projector screen pixels below and to the right of the upper-left corner of the control screen:.

This configuration assumes multiple video cards. However, some video cards with multiple outputs—;including laptops—;can be configured for Xinerama operation using driver-specific options. The virtual screen facility permits a screen to exceed the size of a physical display, which results in a physical display that scrolls around the virtual screen. It is possible to combine this with Xinerama, but the results are pretty strange.

Figure shows the relationship between virtual screens, physical screens, and the Xinerama screen. In this example, the virtual size of screen 0 is the same as the physical size of screen 1, but the resolution of the physical screen 0 is lower. The mouse pointer will still cause the screen 0 to scroll until the right edge of the virtual screen is encountered, at which point the mouse will move onto the adjacent screen 1.

However, it might be useful to configure two Xinerama screens of the same size, where one screen is completely displayed on a monitor and the other screen is a virtual screen with a smaller physical screen, as shown in Figure In this configuration, the monitor on screen 1 will show the entire screen, while the monitor on screen 0 will show a scrolling enlargement of one portion of the display—;potentially useful for people with visual impairment.

Unfortunately, Xin-erama will only display the mouse cursor on one monitor at a time, and unless the cursor is on the scrolling screen, there is no way to scroll it. Since the mouse cursor will appear on the lowest-numbered screen, the scrolling screen must be configured as screen 0. Some of the drivers that permit the simultaneous use of two video out-puts from one video card Section 4. The Screen and ServerLayout sections for this configuration look like this:. Some of the X. This sounds a lot like Xinerama, because it is!

However, there are a few differences between using multiple outputs on one card and using multiple video cards, as out-lined in Table Multiple outputs on one video card. Xinerama with multiple video cards. One Screen section with driverspecific options in the Device section.

Dependent on the combination of cards and drivers; many configurations will not support all features on all cards. This feature is not yet supported by many of the drivers or desktop environments, but it promises incredible flexibility—;for example, new monitors could automatically work as soon as they are plugged in. You can experiment with this dynamic reconfiguration capability using the xrandr utility.

Although the configuration process is similar for each card, the option names vary. Here is a description the process for the options that you will need in the Device section:. Option "DesktopSetup" "0x" if connector 1 is connected to the monitor on the left, or Option "DesktopSetup" "0x" if connector 1 is connected to the monitor on the right.

Option "SecondMonitorHorizSync" " range ". Option "SecondMonitorVertRefresh" " range ". Option "VRefresh2" " range ". For example, " x , x " would configure x resolution on the first monitor and x resolution on the second monitor.

This option is enabled by default. Option "MergedXinerama" "bool" where bool is On or Off. The second monitor does not require a Monitor section in the configuration file. This gives the user the flexibility to use whichever device is most convenient for the task at hand; perhaps input is easier with a keyboardmounted TouchPad, but surfing is easier with a mouse.

The first, primary InputDevice entry must have the argument CorePointer. Alternately, the CorePointer and SendCoreEvents values can be moved from the ServerLayout section to the InputDevice section; this syntax is used in configuration files generated by the automatic configuration tools on Debian systems:.

The X server will fail if no pointer device can be opened. You can also specify the option -allowMouseOpenFail on the X server command line. The X server normally gets keyboard input from the VT on which it is running. On some systems, including Linux and some versions of Solaris, the input from multiple keyboard devices is merged by the kernel with help from the hotplug subsystem. Therefore, no configuration is required to set up additional parallel keyboards.

Instead of relying on this default behavior, you can specify a specific device in the keyboard InputDevice section. To use a keyboard with this patch, you need to identify the keyboard either by name or by physical connection.

The keyboard entries in this file will look like this:. The USB keyboard is shown twice because it presents two keyboard interfaces to the system: the first one for standard keys, and the second one for additional multimedia keys, such as volume control, mute, scroll, and dedicated application buttons.

The physical connection of a USB device will change every time the USB arrangement is disturbed—;for example, when the keyboard is unplugged and moved to a different USB port, or a hub is added between the keyboard and the system. However, if you need to specify one keyboard out of several identical ones, you have no choice but to use the physical connection name.

To specify a keyboard by name, use the DevName option:. This article provides a general description for several multi-head setup methods, and provides some configuration examples. It was developed in at MIT. After about 35 years of development, tweaks, new features and ideas, it is generally acknowledged to be a bit of a beast. During the time of early development, the common configuration was a single running X that provided individual views to Xterminals on a time-sharing system.

Today, X typically provides a single screen on a desktop or laptop. In short, there are many ways to configure GUIs using X. When using modern versions, sometimes you can even get away with limited or no configuration. In the last few years, the boast is that X is self-configuring. Certainly, a good rule of thumb is that less configuration is better - that is, only configure what the defaults got wrong.

In most cases, it can fully replace the old Xinerama setup. See an explanation why RandR is better than Xinerama. RandR can be configured for the current session via the xrandr tool, arandr or persistently via an xorg. You may arrange your screens either relatively to each other using the --right-of , --left-of , --above , --below options , or by absolute coordinates using the --pos option; note that in this case you usually need to know resolutions of your monitors.

See xrandr 1 for details. Some frequently used settings are described below. Since randr version 1. This is an updated version of what was possible with Xinerama and works with open source drivers and does not require an Xorg restart. Some desktop environments do not support this feature yet. Openbox has been tested and works with this feature. Monitor order in this command does not matter and the monitors need to be rearranged correctly after or before this command is executed.

For a more detailed explanation see this page. This is similar to using xrandr , separate Monitor section is needed for each screen.

As an Identifier , the same value as reported by xrandr -q is used i.