Multi-monitor , also called multi-display and multi-head , is the use of some physical display devices, such as monitors, televisions, and projectors, to increase the area available for computer programs running on a single computer system. Research studies show that, depending on the type of work, multi-head can increase productivity by 50-70%.
Video Multi-monitor
Implementation
Some computers can be connected to provide a screen, e.g. via Gigabit Ethernet/Ethernet to drive large video walls.
Maps Multi-monitor
View mode
USB
One way to extend the number of displays on a single computer is to add a display via USB. Starting in 2006, DisplayLink released several chips for USB support on VGA/DVI/LVDS and other interfaces.
Adoption
In the office
In many professions, including graphic design, architecture, communications, accounting, engineering and video editing, the idea of ​​two or more monitors powered from one machine is not new. While in the past, it meant some graphics adapters and special software, it was common for engineers to have at least two, if not more, displays to increase productivity.
In the video game
Multi-monitor/simulation games are also becoming more common; However, hardware costs can be a limiting factor. The growing popularity of using multiple monitors into gaming leads to an introduced website that allows for seamless and easy configuration from outside sources from the original one-screen options provided by the developer to many new screen options.
Video game that supports multi-monitor set-up
Early versions of DOOM allowed a three-monitor display mode, using three network machines to show left, right, and center views.
Recently, games have used multiple monitors to show a more absorbent interface to players or to display game information. Various flight simulators can use these monitor settings to create an artificial cockpit with a more realistic interface. Others like Supreme Commander and World in Conflict can use additional monitors for large-scale maps on the battlefield.
A large number of older games support multi-monitor settings by treating the total screen space effectively one monitor to the game, a technique known as range. Many games without in-built multi-monitor support such as Guild Wars and World of Warcraft can also be created to run in a multi-monitor set-up, with this technique or in conjunction with third-party software additions A larger list of games that support dual/multi-screen mode is available in the WSGF.
Other uses
Machine arcade
When the arcade technology entered the 1990s, larger cabinets were being built which in turn also housed larger monitors such as the "283" screen version of Namco Ridge Racer from 1993. Despite the large screen technologies such as CRT rear projection began to be used more frequently, multi-monitor games are still occasionally released, such as Sega's
Develop software for multiple monitor workstations
Regular software does not require special support for multiple screens even if using a graphics accelerator. At the usual application level, multiheads are displayed only as a single larger monitor that covers the entire screen. However, some special approaches can improve multithread performance.
With multiple monitors present, each screen will have its own graphical buffer. One possible scenario for programming is to present OpenGL or DirectX a continuous virtual frame buffer in which the OS or graphics driver writes to each individual buffer. With some graphics cards, it's possible to enable a mode called "horizontal range" that accomplishes this. The OpenGL/DirectX programer then creates a very large frame buffer for the output. In practice, and with the latest card, this mode is being removed because it does not use GPU parallelism and does not support arbitrary monitor settings (everything must be horizontal). The newer techniques use the OpenGL wglShareLists feature to share data across multiple GPUs, and then render to individual individual frame buffer monitors.
On Android
Android supports additional monitors in version 4.2 but additional software is required for multi-task/use both at once.
See also
- Dual-touchscreen
- Configure multiseat
- Video wall
References
Further reading
Elliott, John (2011-04-24). "Dual-Head Operation on Vintage PC". Archived from the original in 2016-11-23 . Retrieved 2016-11-23 .Source of the article : Wikipedia
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