1/27/2024 0 Comments Tigervnc multimonSadly, I was unable to enable virtual displays the same way on ODROID-XU4, so this technique requires that your master PC is an Intel-based one. You should now get a popup, like in Figure 1 showing the new screen and asking you what you want to do with it. $ xrandr -output VIRTUAL1 -right-of LVDS1 You can use the command's output to get the relevant information for you and enable the screen: Fortunately there is a tool that does that based on an input resolution and refresh rate and it comes part of xserver-xorg-core package: You will need to calculate the correct timings for your desired resolution and add a new mode to the virtual display. For my experiments I used a 720p resolution for it because it's small enough to be streamed without issues and big enough to be readable from a distance on a big screen TV. Now that we have a new screen available, we'll need to set up a specific resolution and activate it. VIRTUAL2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) If you restart your Xorg server, you will see two new virtual displays in your xrandr output: If you have a NVidia GPU, you can try this instead. This time we will extend the desktop by adding a new virtual screen.įor a laptop with an intel GPU we can do this by adding /usr/share/X11//nf with this contents as described here : However, that causes issues - especially with applications not knowing where the physical screen ends, which makes maximizing windows a pain. In the previous article I used xrandr to extend the physical desktop size. Ideally one that works over wifi.įirst thing we need to do is to extend the physical desktop. The laptop (in my case) runs Linux (obviously), so we are looking for a linux solution for the problem. The goal is to have a dual-screen setup - one screen would be your laptop's display, the second screen would be a networked ODROID. I managed to go through x11vnc's man page and found some options that greatly simplify things and reduce the number of hacks needed. So, the good news is, you do not need anything described in that article. So, how about we use an ODROID as a secondary screen? This is somewhat a continuation of my previous article "Multiscreen Desktop using VNC" featured in a previous ODROID Magazine article. Working on a small laptop screen is no fun task, and using HDMI cables while kids run around is not fun either. Some of us had to work during this time too. See the RemoteMonitor functions to learn how to use this feature.Looks to me everyone has been stuck indoors for longer than they desired. You can add a hard wait after the connection is established or add an image search that will only match for multiple monitors (e.g., an image of the start menu that reaches left of the monitor) to adjust the timing of your scripts to work with this feature. Note that it can take a moment for the monitors to populate, and before that happens, you might see a very wide single monitor. However, you must enable Windows SUTs to receive RDP connections check your Windows documentation for how to do this.Įggplant Functional allows you to specify how many monitors you want to be represented in a single SUT window when connecting via RDP. Also note that you do not have to install anything additional on the Windows environment. It is generally faster than VNC, so you are likely to see less latency when working remotely through RDP. RDP is a native Windows remote connection method therefore, it is available for connecting only into Windows environments. For more information about this process, visit VNC Servers. You have to install a VNC server on each SUT you want to test, but there are many such products available for free download. VNC is a cross-platform connection method, working equally well on Mac OS, Windows, and Linux, making it a good choice to use for Eggplant Functional environments where you will be testing multiple operating systems. When you use Eggplant Functional for image-based testing, you can connect to a system under test (SUT) in one of two ways:Įach method has its benefits and best use cases, as outlined below. You are here: Eggplant Functional Connection Types: VNC vs.
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