Mir, Wayland and the Future of Bodhi Linux

Things have been a little quiet around my blog of the late. At the beginning of last month I started a full time position doing some IT related tasks for a major insurance company where I live in central IL. Between the new job, playing Magic, spending time keeping Bodhi things up to date, and preparing to get married in less than a month - I haven’t had time to post as much as I’d like to on here.

Today I would like to take a moment to discuss a topic that has received much attention on Linux blogs/news sites in recent weeks – Ubuntu’s concept for the Mir display server. I would like to start by pointing out I’ve said the concept of Mir. That is right folks – at this point it is just a concept, nothing more. Not long ago Ubuntu announced they’d be moving to Wayland. We all know exactly how much came from this announcement. Because of this history I’m going to reserve my judgment of Mir until we see it actually created and put into use.

Lots of people have been jumping to even more conclusions as to what exactly Mir means for derivatives of Ubuntu – such as the Bodhi project I manage. Currently Mir means absolutely nothing for Bodhi. We intend to continue following our close relationship with the upstream Enlightenment developers (we are after all an E-centric distro) and at this current point in time the Enlightenment team has zero plans to support Mir (which is fine, because again it is still nothing more than a concept). The E team however has been actively working on porting the EFLs/E desktop to be functional on top of Wayland.

Does this mean Bodhi will move to using Wayland for our display server? No it does not. Does Ubuntu moving to Mir (some year[s] from now) mean Bodhi will be rebased on another Linux distribution (such as Debian)? No it does not. Bodhi uses Enlightenment for it’s desktop because I believe it is the best desktop Linux has to offer. As long as X11 remains the best display server Linux has to offer Bodhi will continue using it. As long as Ubuntu remains the best/most supported core to build a distribution off of Bodhi will remain being derived from it.

That being said, our next major Bodhi release (3.0.0) will not be released until summer of 2014. A lot can happen in terms of software (and technology in general) over the course of 15 months – so nothing is set in stone. When it comes time for our next major release we will be re-evaluating all aspects of our project to ensure we are choosing technologies that are the best for our end users. After all, what good is an operating system if it doesn’t serve it’s end users well.

Speaking of Bodhi releases – keep an eye on our testing forum for Bodhi 2.3.0 pre-release discs within the next twenty-four hours. That update release is scheduled to be out by the end of this month.

Cheers,
~Jeff Hoogland

Wayland VS X - Some Perspectives

The Linux world has been very talkative for the last few weeks with the news that Ubuntu plans on switching from the classic X server to Wayland for it's graphics environment. For those who are still unclear as to what exactly Wayland is, here is a quote from their homepage:

"Wayland is a protocol for a compositor to talk to its clients as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers."

For those still unclear as to what Wayland is supposed to be doing after reading the above quote - essentially Wayland helps a compositor, such as Compiz or KWin, work with applications running on a computer. It can run on top of an existing display server, such as X, or act as the display server itself (and run X inside of itself similar to how OSX does).

My first and foremost question to the change to Wayland is why? Well according to Mark the "why" is the following:

"we don’t believe X is setup to deliver the user experience we want, with super-smooth graphics and effects

To each their own. The wonderful thing about FOSS is choice - my question this: If desktops such as Enlightenment can achieve an elegant, fluid desktop while using X, why can't Unity? My next concern about using the Wayland project is if it is ever going to actually fully get rid of X. Mark states that they plan to keep backwards compatibility with all X applications. While backwards compatibility of this sort is something that is very necessary, I some how doubt this going to be accomplished with out keeping parts (if not all) of X around. If this is the case - what is the point of adding Wayland into your graphics layer in the first place?

The last part of Wayland that is a large cause for concern is lack of closed source video driver support. As a free software advocate I know FOSS drivers are ideal (and they are advancing rapidly) but as of yet they do not offer anywhere near the performance of their closed source counter parts. In fact as of today the only open source graphics drivers that support any form of decent 3D acceleration are for Intel chip sets. While I recommend taking anything you read on Phoronix with a grain of salt - their claim that nVidia has no plans to support Wayland in their closed source driver sounds about accurate. As for ATI? Their Linux driver support has historically been worse than nVidia - so I wouldn't hold my breath here either.

As with most things only time will tell if Ubuntu's (and Fedora's) transition to Wayland will be a success (or a death sentence) for the respective distros. In the mean time want to give Wayland a try? Well, currently it is barely functional and only works on a limited amount of hardware. That means, in addition to all the concerns above, a good deal of time, funding, and man power is going to have to be invested in Wayland just to make the project functional for a desktop operating system such as Ubuntu.

Personally, I think this announcement is premature and we won't have a functional "Wayland only" display server on a main stream distro for several years at least. What is your take in the situation? Do you think the change was necessary and how soon will it come?

~Jeff Hoogland