We transfer the control of KMS and evdev to the compositor. In Wayland, the compositor is the display server. The X server acts as a middleman that introduces an extra step between applications and the compositor and an extra step between the compositor and the hardware. And even though X has handed responsibility for the final painting of the screen to the compositing manager, X still controls the front buffer and modesetting. To understand more about the workflow go through this page.Īs can be seen, the X Server doesn't have the info to decide which window should receive the event, nor can it transform the screen coordinates to window-local coordinates. The numbers on the image show the flow of the events and data across different modules of the Xorg modules. The X server receives graphics requests from the client programs to be displayed to the user, and it sends back user commands from input devices such as keyboards, mouse, touchscreens, etc. X toolkit libraries are also used to draw and operate widgest like buttons and scroll bars. Client applications use a protocol library such as libX11 for sending and receiving commands to the X server. Xorg is based on a client/server model and thus allows clients to run either locally or remotely on a different machine. Wayland is a computer protocol that specifies the communication between a display server (called a Wayland compositor) and its clients. X.Org Server is the free and open source implementation of the display server for the X Window System stewarded by the X.Org Foundation. The X Window System is a client/server network protocol that's been put into use for a while now. These actions include clicking on a checkbox, moving the windows, clicking a button, etc. In simple terms, X Windows System and Wayland determine how your program's display will appear depending on your actions. X11 is the protocol implemented by X Windows System while Wayland is the protocol used by Wayland Compositor. Commonly known display server communications protocols include X11, Wayland, Mir, etc. It communicates with its clients over the display server protocol which can be network-transparent and network capable. Its primary task is to coordinate the input and output of its clients (programs and applications running GUI interface) to and from the rest of the OS, the hardware, and each other. How they are similar and how are they different? Display Server and Stackĭisplay Server is the basic component of GUI which sits between the graphical interface and the kernel. In this article, I will explain the issues I found during my analysis.īefore going over the issue with the Xorg it is vital to understand the working mechanisms and architecture of both Xorg and Wayland. When I started to dig into this, I realised why the community was going with Xorg instead of Wayland as default. Afterall Xorg has some security concerns, and choosing to continue with it was hard to swallow. When I first heard that Ubuntu 18 will be using Xorg as default, it came to me by surprise. In particular, I’d love to hear what and (who is an Ubuntu Core Developer) think about this.Earlier this year Ubuntu 18 LTS was fully released. I’d be curious to hear what other Lubuntu Developers think about this. This seems especially true given that LibreOffice seems affected. I say this because while Lubuntu (like most other flavors) have shorter support time frames than standard Ubuntu, the Ubuntu community still supports the packages in the archive until the Ubuntu support timeframe ends. However, I think it would be a good idea for Ubuntu Developers to backport, not only for 18.04, but quite possibly for all other supported versions as I suspect it’s an ongoing problem. Given that our support for 18.04 ends in about 3 months, I’m concerned that dedicating our limited time to this task may not be a good use of our time. Given that, we have to prioritize some things over others. The Lubuntu team is a small one and we’ve almost always got more work to do than we have volunteers. I’ve been thinking about what to do with this and I’m really not sure. from -0ubuntu1 to -0ubuntu2), it’s going to be a relatively involved change to implement, the likelihood of pitfalls and conflicts is relatively high, and because of these, it’s going to require some extensive testing. Given that this is a major change in version (from 1.6 to 1.7) rather than simply a patch (e.g. It’s a bit of annoying paperwork, but the process is there to guard against the high likelihood of breaking something on an already released version of the OS. Generally, the way to deal with this is to go through the Stable Release Update process. Moving from # support to # development since this is really a question about backporting.
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