One of the things that we have been discussing at length in the past few months is the graphics stack in Kubuntu, and how we’re working towards having Plasma Workspaces 2 running on top of Kubuntu-next and Kubuntu-next-next(-next). In this article, I will explain the strategy we have laid out for a smooth transition.
2013: 4.11 atop XOrg
For Kubuntu-next (13.10), the answer is pretty easy: We’ll be relying on plain old Xorg. End of story. Alternatives do not provide us any benefits, so instead of jumping onto an unproven and at the time of writing buggy new technology stack, 13.10 will present you a stable and proven solution as to the display server, and on top of that provide a KDE SC 4.11 with all the performance improvements that we have worked on in the past months. They will, on many systems be quite impressive. The port to XCB provides a whole slew of advantages, and we have reduced memory consumption significantly in many components, Kontact for example.
Later this year, we’ll make the first test packages of Plasma Workspaces 2 available, which is the upcoming version of Plasma, based on Qt5 and an entirely hardware-accelerated graphics stack. Do not expect them to be much useful at that point, however, as Plasma 2 (and the underlying Frameworks 5 is still a fast-moving target. The packages are mainly useful to catch integration problems early on, such as co-installability of KDE SC 4 and Frameworks 5 packages, so you’ll later on be able to run a KDE SC 4 application atop a Plasma Workspaces 2 — mixing and matching whatever is stable and mature enough for you. This eases the transition for our users and makes it a lot easier for us to dogfood ported apps.
2014: Offering Wayland
Fast-forward to 2014. The stable release of 14.04 will be relatively boring (a.k.a. stable :D). Regarding Plasma, it will be based on 4.11 with all the bugfixes we have accumulated until then. Maybe not the most exciting release, but stability and continuity aren’t the worst thing in the world. Also, as 4.11 will get extended support from the upstream Plasma team, this offers quite a nice choice for those that don’t want to upgrade too often.
At the same time, the brave among us will be able to test early versions of Plasma Workspaces 2, which are being constantly updated through Project Neon, a sort of rolling testing releases.
In the first half of 2014, we will start the transition process to the Wayland display server, not for 4.11, mind you, but on top of KDE Frameworks 5 and Plasma Workspaces 2. Project Neon, by that time will get support for Wayland, which likely means that we are going to package a Wayland-based graphicsstack, and maintain that. Not exactly what we’d like to do, but a little more integration work is, in my opinion preferable to rely on a technology which doesn’t provide a stable protocol and is focused solely on another desktop shell. The
Source: FULL ARTICLE at Planet Ubuntu