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KDE Plasma Mobile — The Dev Log: April 2024 - June 2025
(plasma-mobile.org)
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this post was submitted on 19 Jun 2025
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Not sure what you mean. Isn't the base just GNU/Linux?
Sort of. Whatever hardware these are intended to run on require something like 3X the driver code (at least in the case of the Android Linux kernel, according to Greg Kroah-Hartman). Phones tend to have more specialized and proprietary hardware, so you can't just take the standard Linux kernel, use it there, and call it a day.
But I'd be surprised if the people working on this weren't aware of that fact, and I hope they are working on abstracting the hardware layers more so that every mobile Linux project doesn't have to start from scratch every time.
Edit: source (YouTube, sorry) for the claim about how much driver code is required for mobile devices.
That would make sense, though I was asking about the "solid base", not the "driver layer".
I mean, Linux is the driver layer, and you mentioned GNU (userspace) / Linux (hardware layer), and the Linux part of that solid base can't just be the vanilla Linux kernel that you'd run on a computer.
Yeah I could've phrased that better. I was thinking more process management, coreutils, networking, device interfaces, rendering, window manager, etc.
Eh, you sort of can on some phones, e.g. OnePlus 5 and 6; on some others it's just a couple dozen patches away from working.
The problem with other phones isn't "abstracting the hardware" (this is done by the Linux kernel), it's reverse-engineering the drivers so that they run on whatever kernel you want and use the open standards required by the "desktop linux" userspace. In fact, if you look at the "supported devices" list for all those mobile Linux distros you'll find a fairly similar set; that's simply all devices for which manufacturer's (or reverse-engineered) drivers are available. It's not like FOSS people are writing drivers specifically for their distro, which wouldn't work with any other - only corporate Android vendors do that!
I highly doubt that those "couple dozen" patches are trivial though. Even Pixel devices can't run the vanilla mainline kernel without a bunch of added code to make it work with the hardware (see: the Greg KH interview I linked).
And abstracting the hardware is what you do when you make drivers, so this is a distinction without a difference.
Yes, what I'm saying is that Mobile Linux people are typically doing just that, sometimes also trying to upstream it as well. I don't see how else they could be "working on abstracting the hardware".
The base for Android is also Linux. But there is another layer. That is AOSP, which is comparable to your distro, then there's another layer of your UI (ie: MIUI, One UI, Nothing UI, Pixel UI, etc) which is comparable to your DE on Linux.
That second layer is what they're referring to. Currently everyone is just playing with the third layer (the DE), to my knowledge.
Isn't that the UI layer they was referring to? I would think that the AOSP layer as summarized by balsoft is the solid base, which in Plasma mobile is GNU/Linux plus some basic stuff in the DE.
AOSP is more than your distro, it's like the combination of all the gubbins that make your desktop computer work - rendering layer, compositor, unified device interfaces (like bluetooth or the battery), network management, audio, etc; whereas a typical Linux distro is simply a combination of all these already existing things.
It's just an analogy to get the point across. These details aren't really important.
Naw
could you explain?
Do you think Android is "just" Linux?
Like the other commenter, you have no idea how this works. The people up voting me do.
No? It's not even much Linux besides the kernel. By my second sentence I meant "Isn't [Plasma Mobile's solid] base just GNU/Linux?"
KDE is not a functional Linux distribution. It's a desktop environment.
So, no, it's not Linux at all.
Okay, what more needs to be in postmarketOS Plasma in order so that it has a "solid base"?
Literally in my post.
Sorry that I couldn't see where you included that. Could you do me a favor and quote what components exactly need to have work done for a solid base? (brownie points if they refer to postmarketOS's Plasma Mobile as a starting point) Note that I'm already aware of the driver layer issues. I'm really curious about this solid base you mention.