Wayland Archive
The Wayland color-management protocol extension has landed on Feb 13th, 2025, in upstream wayland-protocols repository in the staging directory. It was released with wayland-protocols 1.41. The extension enables proper interactions between traditional (sRGB), Wide Color Gamut (WCG), and High Dynamic Range (HDR) image sources and displays once implemented in Wayland compositors and used in applications. Of course, a protocol is just a language. Two participants need to speak the same language for the language to be of any use: Wayland compositors and a component on the application side (e.g., a toolkit library). Major efforts have been going on in various projects to prove and take advantage of the protocol, including KWin, Mutter, Weston, wlroots, GStreamer, GTK, Qt, SDL, Mesa, and mpv. Support in Mesa means that applications will be able to render and display in HDR by using the relevant EGL and Vulkan features. ↫ Pekka Paalanen Colour management has been an important missing piece of the Wayland puzzle, so it’s good to see this finally released and added to Wayland as a new protocol after so many years of work. It’s important to note that the work done so far focuses almost entirely on the entertainment side of things, like watching video or playing games. The other important side, professional colour management for things like photo editing or desktop publishing, is still missing, with the major holdup being measuring physical monitor response (measuring a reference image displayed on a monitor with a hardware device).
LXQt, the desktop environment that is to KDE what Xfce is to GNOME, has released version 2.1.0, and while the version number change seems average, it’s got a big ace up its sleeve: you can now run LXQt in a Wayland session, and they claim it works quite well, too, and it supports a wide variety of compositors. Through its new component lxqt-wayland-session, LXQt 2.1.0 supports 7 Wayland sessions (with Labwc, KWin, Wayfire, Hyprland, Sway, River and Niri), has two Wayland back-ends in lxqt-panel (one for kwin_wayland and the other general), and will add more later. All LXQt components that are not limited to X11 — i.e., most components — work fine on Wayland. The sessions are available in the new section Wayland Settings inside LXQt Session Settings. At least one supported Wayland compositor should be installed in addition to lxqt-wayland-session for it to be used. There is still hard work to do, but all of the current LXQt Wayland sessions are quite usable; their differences are about what the supported Wayland compositors provide. ↫ LXQt 2.1.0 release announcement This is great news for LXQt, as it ensures the desktop environment is ready to keep up with what modern Linux distributions provide. Crucially and in line with what we’ve come to expect from LXQt, X11 support is a core part of the project, and they even go so far as to say “the X11 session will be supported indefinitely”, which should set people preferring to stay on X11 at ease. I personally may have gleefully left X11 in the dustbin of history, but many among us haven’t, and it’s welcome to see LXQt’s clear promise here. Many of the other improvements in this release are tied to Wayland, making sure the various components work and Wayland settings can be adjusted. On top of that, there’s the usual list of bug fixes and smaller changes, too.
Speaking of Wayland, one of the most important parts of the transition is Xwayland, which makes sure legacy X applications not yet capable of running under a modern graphics stack can continue to function. Xwayland applications have had this weird visual glitch during resize operations, however, where the opposite side of the window would expand and contract while resizing. KDE developer Vlad Zahorodnii wanted to fix this, and he wrote a very detailed article explaining why, exactly, this bug happens, which takes you deep into the weeds of X and Wayland. Window resizing in X would be a glitchy mess, if it wasn’t for the X11 protocol to synchronize window repaints during interactive resize, which ensures that the window resize and the application repainting its window contents remain synchronised. This protocol is supported by Kwin and GNOME’s Mutter, so what’s the problem here? Shouldn’t everything just work? KWin supports the basic frame synchronization protocol, so there should be no visual glitches when resizing X11 windows in the Plasma Wayland session, right? At quick glance, yes, but we forget about the most important detail: Wayland compositors don’t use XCompositeNameWindowPixmap() or xcb_composite_name_window_pixmap() to grab the contents of X11 windows, instead they rely on Xwayland attaching graphics buffers to wl_surface objects, so there is no strict order between the Wayland compositor receiving an XSync request acknowledgement and graphics buffers for the new window size. ↫ Vlad Zahorodnii Basically, the goal of the fix is to make sure these steps are also synchronised when using Xwayland, and that’s exactly what Zahorodnii has achieved. This makes the resizing X windows under Xwayland look normal and without weird visual glitches, which is a massive improvement to the overall experience of using a Wayland desktop with a few stray X applications. Thanks to this fix, which was made possible with help from Wayland developers, Kwin is now one of the few compositors that correctly synchronises X windows running under Wayland. KDE has been doing an amazing job moving from X to Wayland, and I don’t think there’s anyone else who has managed to make the transition quite as painless. Not only do KDE developers focus on difficult bugs like this one that many others would just shrug off as acceptable jank, they also made things like the Wayland to X11 Video Bridge, a desktop-agnostic tool to allow things like screen sharing in Teams, Discord, Slack, etc. to work properly on Wayland.
The slow rise of Wayland hasn’t really been slow anymore for years now, and today another major part of the Linux ecosystem is making the jump from X to Wayland. So we made the decision to switch. For most of this year, we have been working on porting labwc to the Raspberry Pi Desktop. This has very much been a collaborative process with the developers of both labwc and wlroots: both have helped us immensely with their support as we contribute features and optimisations needed for our desktop. After much optimisation for our hardware, we have reached the point where labwc desktops run just as fast as X on older Raspberry Pi models. Today, we make the switch with our latest desktop image: Raspberry Pi Desktop now runs Wayland by default across all models. ↫ Simon Long Raspberry Pi Desktop already used Wayland on some of the newer models, through the use of Wayfire. However, it turned out Wayfire wasn’t a good fit for the older Pi models, and Wayfire’x development direction would move it even further away from that goal, which is obviously important to the Raspberry Pi Foundation. They eventually settled on using labwc instead, which can also be used on older Pi models. As such, all Pi models will now switch to using Wayland with the latest update to the operating system. This new update also brings vastly improved touchscreen support, a rewritten panel application that won’t keep removed plugins in memory, a new display configuration utility, and more.
So given that, xmem can be useful as a monitoring tool. Fluffy (my main server) runs both squid and apache, and given that fluffy only has 64MB of RAM, things can get a little cramped. If I suddenly see that the whole of xmem turns blue (i.e. the swap file’s thrashing), then I know that something is odd, and I can easily find out which processes are eating up so much RAM. I said earlier that xmem can brighten up one’s desktop. Indeed, as I use FVWM in a rather archaic fashion, it seems fitting I should like xmem. 🙂 Here’s a full screenshot showing xmem (plus other applications) in action. ↫ Thomas Adam This is basically just an excuse to show off this awesome FVWM desktop shown off in this short little article about xmem, written by one of FVWM’s core developers. It just looks neat.
Nearly three years in the making, the ext-image-capture-source-v1 and ext-image-copy-capture-v1 protocols have been merged into the Wayland Protocols repository for vastly improving screen capture support on the Wayland desktop. The ext-image-capture-source-v1 and ext-image-copy-capture-v1 screen copy protocols build upon wlroots’ wlr-screencopy-unstable-v1 with various improvements for better screen capture support under Wayland. These new protocols should allow for better performance and window capturing support for use-cases around RDP/VNC remote desktop, screen sharing, and more. ↫ Michael Larabel A very big addition to Wayland, as this has been a sore spot for many people wishing to move to Wayland from X. One of the developers behind the effort has penned a blog post with more details about these new protocols.
After two year of development, System76 has released the very first alpha of COSMIC, their new Rust-based desktop environment for Linux. This is an alpha release, so they make it clear there’s going to be bugs and that there’s a ton of missing features at this point. As a whole, COSMIC is a comprehensive operating system GUI (graphical user interface) environment that features advanced functionality and a responsive design. Its modular architecture is specifically designed to facilitate the creation of unique, branded user experiences with ease. ↫ System76 website Don’t read too much into “branded experience” here – it just means other Linux distributions can easily use their colours, branding, and panel configurations. The settings application is also entirely modular, so distributors can easily add additional panels, and replace things like the update panel with one that fits their package management system of choice. COSMIC also supports extensive theming, and if you’re wondering – yes, all of these are answers to the very reason COSMIC was made in the first place: GNOME’s restrictiveness. There’s not much else to say here yet, since it’s an alpha release, but if you want to give it a go, the announcement post contains links to instructions for a variety of Linux distributions. COSMIC is also slowly making its way into Redox, the Rust-based operating system led by Jeremy Soller, a System76 employee.
Ly is a lightweight TUI (ncurses-like) display manager for Linux and BSD. ↫ Ly GitHub page That’s it. That’s the description. I’ve been wanting to take a stab at running a full CLI/TUI environment for a while, see just how far I can get in my computing life (excluding games) running nothing but a few tiled terminal emulators running various TUI apps for email, Mastodon, browsing, and so on. I’m not sure I’d be particularly happy with it – I’m a GUI user through and through – but lately I’ve seen quite a few really capable and just pleasantly usable TUI applications come by, and they’ve made me wonder. It’d make a great article too.
For the uninitiated, what are we looking at? Could it be the Moiré Error from Doom? Well, no. You are looking at (part of) the boot up screen for the X Window System, specifically the pattern it uses as the background of the root window. This pattern is technically called a stipple. What you’re seeing is pretty important and came to symbolize a lot for me as a computer practitioner. ↫ Matt T. Proud The X bootup pattern is definitely burnt onto my retina, as it probably is for a lot of late ’90s, early 2000s Linux users. Setting up X correctly, and more importantly, not breaking it later, was almost an art at the time, so any time you loaded up your PC and this pattern didn’t greet you, you’d get this sinister feeling in the pit of your stomach. There was now a very real chance you were going to have to debug your X configuration file, and nobody – absolutely nobody – liked doing that, and if you did, you’re lying. Matt T. Proud dove into the history of the X stipple, and discovered it’s been part of X since pretty much the very beginning, and even more esoteric X implementations, like the ones used by Solaris or the various commercial versions, have the stipple. He also discovered several other variants of the stipple included in X, so there is a chance your memory might be just a tiny bit different. The stipple eventually disappeared at around 2008 or so, it disappeared as part of the various efforts to modernise, sanitise, and speed up the Linux boot process on desktops. On modern distributions still using X, you won’t encounter it anymore by default, but in true X fashion, the code is still there and you can easily bring it back using a flag specifically designed for it, -retro, that you can use with startx or your X init file. There’s a ton more information in Proud’s excellent article, but this one paragraph made me smile: I will remark that in spite of my job being a software engineer, I had never spent a lot of time looking at the source code for the X Server (XFree86 or X.Org) before. It’s really nuts to see that a lot of the architecture from X10R3 and X11R1 still persists in the code today, which is a statement that can be said in deep admiration for legacy code but also disturbance from the power of old decisions. Without having looked at the internals of any Wayland implementation, I can sympathize sight unseen with the sentiments that some developers have toward the X Window System: the code is a dead end. I say that with the utmost respect to the X Window System as a technology and an ecosystem. I’ll keep using X, and I will be really sad when it’s no longer possible for me to do so for one reason or another, as I’m extremely attached to it quirks. But it’s clear the future is limited. ↫ Matt T. Proud We all have great – and not so great – memories of X, but I am really, really happy I no longer have to use it.
Graham’s TWM page has been around for like two decades or so and still isn’t even remotely as old as TWM itself, and in 2021 they published an updated version with even more information, tips, and tricks for TWM. The Tab Window Manager finds its origins in the lat 1980s, and has been the default window manager for the X Windowing System for a long time, now, too. Yet, few people know it exists – how many people even know X has a default window manager? – and even fewer people know you can actually style it, too. OK, so TWM is fairly easy to configure but alot of people, upon seeing the default config, scream ‘Ugh, thats awful!’ and head off to the ports tree or their distro sources in search of the latest and greatest uber desktop environment. There are some hardcore TWM fans and mimimalists however who stick around and get to liking the basic feel of TWM. Then they start to mod it and create their own custom dekstop. All part of the fun in Unix :). ↫ Graham’s TWM page I’ll admit I have never used TWM properly, and didn’t know it could be themed at all. I feel very compelled to spend some time with it now, because I’ve always liked the by-now classic design where the right-click desktop menu serves as the central location for all your interactions with the system. There are quite a few more advanced, up-to-date forks of TWM as well, but the idea of sticking to the actual default X window manager has a certain charm. I almost am too afraid to ask, because the answer on OSNews to these sorts of questions is almost always “yes” – do we have any TWM users in the audience? I’m extremely curious to find out if TWM actually has a reason to exist at this point, or if, in 2024, it’s just junk code in the X.org source repository, because I’m looking at some of these screenshots and I feel a very strong urge to give it a serious go.
The goal is to be able to drag an icon from a background window without immediately raising that window and obscuring the drop target window when using the click-to-focus mode. This is a barebones description of what needs to happen. It assumes familiarity with code, protocols, etc. as needed. ↫ Quod Video The articles describes how to get there using both X and Wayland, and it’s clear there’s still quite a bit of work to do. At least on my KDE Wayland setups, the way it works now is that when I click to drag an icon from a lower Dolphin window to a higher one, it brings the lower window forward, but then, when I hover for a bit over the other window, it brings it back up. Of course, this only works if the destination window remains at least partially visible, which might not always be the case. For usability’s sake, there needs to be an option to start a drag operation from one window to the next without altering the Z-order.
David Rosenthal, one of the primary contributors to the X Windowing System, has published an awesome blog post about the recent 40 year anniversary of X, full of details about the early days of X development, as well as the limitations they had to deal with, the choices they had to make, and the environment in which they were constrained. Once at Sun I realized that it was more important for the company that the Unix world standardized on a single window system than that the standard be Sun’s NeWS system. At C-MU I had already looked into X as an alternative to the Andrew window system, so I knew it was the obvious alternative to NeWS. Although most of my time was spent developing NeWS, I rapidly ported X version 10 to the Sun/1, likely the second port to non-DEC hardware. It worked, but I had to kludge several areas that depended on DEC-specific hardware. The worst was the completely DEC-specific keyboard support. Because it was clear that a major redesign of X was needed to make it portable and in particular to make it work well on Sun hardware, Gosling and I worked with the teams at DEC SRC and WRL on the design of X version 11. Gosling provided significant input on the imaging model, and I designed the keyboard support. As the implementation evolved I maintained the Sun port and did a lot of testing and bug fixing. All of which led to my trip to Boston to pull all-nighters at MIT finalizing the release. ↫ David Rosenthal They were clearly right. During those days, the UNIX world was using a variety of windowing systems, all tied to various companies and platforms. Standardising virtually the entire UNIX world on X aided in keeping UNIX compatible-ish even in the then-new graphical era, and X’s enduring existence to this very day is evidence of the fact they made a lot of right choices early on. Rosenthal also explains why one of the main alternatives to X, Sun’s PostScript-based NeWS, which was also co-developed by Rosenthal, didn’t win out over X. It had several things working against its adoptions and popularisation, such as Sun requiring a license fee for the source code, its heftier system requirements, and the fact it was more difficult to program for. After trying to create what Rosenthal describes as a “ghastly kludge” by combining NeWS and X into Xnews, Sun eventually killed it altogether. Of course, this wouldn’t be restrospective of X without mentioning Wayland. We and Jobs were wrong about the imaging model, for at least two reasons. First, early on pixels were in short supply and applications needed to make the best use of the few they were assigned. They didn’t want to delegate control to the PostScript interpreter. Second, later on came GPUs with 3D imaging models. The idea of a one-size-fits-all model became obsolete. The reason that Wayland should replace X11 is that it is agnostic to the application’s choice of imaging model. ↫ David Rosenthal This is about as close to a blessing from the original X Windowing System developers you’re ever going to get, but Rosenthal does correctly note that XWayland is a thing, and since not every application is going to be rewritten to support Wayland, X will most likely be around for a long time to come. In fact, he looks towards the future, and predicts that we’ll definitely be celebrating 50 years of X, and that yes, people will still be using it by then.
Today just so happens to be the 40th birthday of X, the venerable windowing system that’s on its way out, at least in the Linux world. From the original announcement by Robert W. Scheifler: I’ve spent the last couple weeks writing a window system for the VS100. I stole a fair amount of code from W, surrounded it with an asynchronous rather than a synchronous interface, and called it X. Overall performance appears to be about twice that of W. The code seems fairly solid at this point, although there are still some deficiencies to be fixed up. We at LCS have stopped using W, and are now actively building applications on X. Anyone else using W should seriously consider switching. This is not the ultimate window system, but I believe it is a good starting point for experimentation. Right at the moment there is a CLU (and an Argus) interface to X; a C interface is in the works. The three existing applications are a text editor (TED), an Argus I/O interface, and a primitive window manager. There is no documentation yet; anyone crazy enough to volunteer? I may get around to it eventually. ↫ Robert W. Scheifler Reading this announcement email made me wonder if way back then, in 1984, the year of my birth, there were also people poo-pooing this new thing called “X” for not having all the features W had. There must’ve people posting angry messages on various BBS servers about how X is dumb and useless since it doesn’t have their feature in W that allows them to use an acoustic modem to send a signal over their internal telephone system by slapping their terminal in just the right spot to activate their Betamax that’s hotwired into the telephone system. I mean, W was only about a year old at the time, so probably not, but there must’ve been a lot of complaining and whining about this newfangled X thing, and now, 40 years later, long after it has outgrown its usefulness, we’re again dealing with people so hell-bent on keeping an outdated system running but hoping – nay, demanding – others to do the actual work of maintaining it. X served its purpose. It took way too long, but we’ve moved on. Virtually every new Linux user since roughly 12-24 months ago will most likely never use X, and never even know what it was. They’re using a more modern, more stable, more performant, more secure, and better maintained system, leading to a better user experience, and that’s something we should all agree on is a good thing.
There’s incredibly good news for people who use accessibility tools on Linux, but who were facing serious, gamebreaking problems when trying to use Wayland. Matt Campbell, of the GNOME accessibility team, has been hard at work on an entirely new accessibility architecture for modern free desktops, and he’s got some impressive results to show for it already. I’ve now implemented enough of the new architecture that Orca is basically usable on Wayland with some real GTK 4 apps, including Nautilus, Text Editor, Podcasts, and the Fractal client for Matrix. Orca keyboard commands and keyboard learn mode work, with either Caps Lock or Insert as the Orca modifier. Mouse review also works more or less. Flat review is also working. The Orca command to left-click the current flat review item works for standard GTK 4 widgets. ↫ Matt Campbell One of the major goals of the project was to enable such accessibility support for Flatpak applications without having to pass an exception for the AT-SPI bus. what this means is that the new accessibility architecture can run as part of a Flatpak application without having to break out of their sandbox, which is obviously a hugely important feature to implement. There’s still a lot of work to be done, though. Something like the GNOME shell doesn’t yet support Newton, of course, so that’s still using the older, much slower AT-SPI bus. Wayland also doesn’t support mouse synthesizing yet, things like font, size, style, and colour aren’t exposed yet, and there’s a many more limitations due to this being such a new project. The project also isn’t trying to be GNOME-specific; Campbell wants to work with the other desktops to eventually end up with an accessibility architecture that is truly cross-desktop. The blog post further goes into great detail about implementation details, current and possible future shortcomings, and a lot more.
Less than a month after 3.5.0, IceWM is already shipping version 3.6.0. Once again not a major, earth-shattering release, it does contain at least one really cool feature that I think it pretty nifty: if you double-click on a window border, it will maximise just that side of the window. Pretty neat. For the rest, it’s small changes and bug fixes for this venerable window manager.
Wayland 1.23.0 has been released. This new release includes the usual bugfixes and protocol clarifications, a number of new features few of us will really understand because we lack the expertise, and most importantly of all: OpenBSD support. That’s it. That’s the news.
IceWM, the venerable window manager we’ve all used at some point in our lives, has released a new version, 3.5.0. It’s a relatively minor release, so you’ve got things like a new install option which will install an extra theme, a fix for porting to NetBSD 10, translation updates, and more such small improvements. The AddressBar, a command line in the taskbar that can be summoned with ctrl+alt+space, also got some love, with file argument completion and support for the cd and pwd commands. You can compile IceWM yourself, of course, but it’ll most likely find its way into your distribution’s repository quickly enough.
Linux auto tiling manager with hot corner support for Openbox, Fluxbox, IceWM, Xfwm, KWin, Marco, Muffin, Mutter and other EWMH compliant window managers using the X11 window system. Therefore, this project provides dynamic tiling for XFCE, LXDE, LXQt, KDE and GNOME (Mate, Deepin, Cinnamon, Budgie) based desktop environments. Simply keep your current window manager and install cortile on top of it. Once enabled, the tiling manager will handle resizing and positioning of existing and new windows. ↫ Cortile GitHub page I’ve always been mildly interested in trying out a proper tiling window manager – of which are millions – but installing and setting up an entirely new environment always felt a bit like overkill for something I’m just curious about instead of actually intending to use it permanently. This seems like a great solution to this issue.
Ordinary modifiers are normally straightforward, in that they are additional keys that are held down as you type the main key. Control, Shift, and Alt all work this way (by default). However, some modifiers are ‘sticky’, where you tap their key once to turn them on and then tap their key again to turn them off. The obvious example of this is Caps Lock (unless you turn its effects off, remapping its physical key to be, say, another Ctrl key). Another example, one that many X users have historically wound up quietly cursing, is NumLock. Why people wind up cursing NumLock, and why I have a program to control its state, is because of how X programs (such as window managers) often do their key and mouse button bindings. ↫ Chris Siebenmann I always have an applet in my KDE panel that shows me if I have any sticky modifiers enabled without realising it. On some of my keyboards, this isn’t always easily noticable, especially when you’re focused on what’s happening on your display. A little icon that only shows up when a sticky modifier is engaged solves this problem, as it immediately stands out in your peripheral vision.
X Server is slowly being deprecated in the Linux world and being replaced Wayland. Still X11 is an interesting protocol to look at from the perspective of binary communication and management of resource which require fast speeds. In this post I tried to cover basic information and create a simple but working app that is simple, defined in single file and easily compiles. No external code except libc was used. I find it fascinating when you can open black boxes and see how gears move each other. ↫ Hereket As much as the time of X has come and is now finally in the process of going, it’s still an incredibly powerful set of tools that even in a bare state can do way, way more than you think. X has come with its own window manager – twm – for decades, and it includes several basic applications like xedit, xclock, xterm, xeyes. Twm is actually pretty cool, and includes some features, like iconify to desktop, that I wish still existed in modern desktop environments. It’s quite bare-bones, though, and I doubt there’s anyone out there unironically using it today. As the linked article notes, even without advanced, complex libraries, toolkits, desktop environments, and so on, it’s entirely possible to create fully functional windows and applications with X. Of course, this makes perfect sense and shouldn’t be surprising – it’s the X Window System, after all – but you so rarely hear or read about it that you’d almost forget and just assume something like GNOME or KDE is an absolute requirement to use X.
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