LWDW 301: Bullseye for Pi and PinePhone Keyboards

Raspberry Pi OS gets a slice of Bullseye! System76 opens up about contributions, PinePhone Pro gets a keyboard, and setting up OBS on Linux.



00:00 Intro
07:06 System76 contributions and collaborations
10:01 Pine 64 November updates
15:31 Kernel 5.16 performance improvements
20:46 Open-source UX/UI web based collaboration
26:56 Setting up OBS on Linux
37:36 Bullseye for Raspberry Pi
46:21 Emails

System 76 retort 

  • After that whiney GNOME post, System76 responds with details to what exactly they have contributed back upstream. 
  • Because GNOME needed a proverbial slap across the face after that.
  • System76 does amazing work for the Linux community, from their contributions to GTK, to Rust, to Nvidia, to open firmware, to Coreboot all the way to the Linux Kernel itself.
  • And, one of the most important contributions System76 has made, is that they have grown the Linux community!


Pine64 updates

  • Developer devices are going out soon, the pre-orders have been terminated because as it turns out people like what Pine is selling.
  • A feature many people have requested for the PineTime, with the just released InfiniTime 1.7.0, now you can set the date and time without having to use the companion app!
  • And there is step-count syncing from the PineTime to the Amazefish app on Linux.
  • The PinePhone (Pro) keyboard is neat. 
  • That will give you a portable little Linux machine on the cheap. 
  • Step data is now being tracked on the Pine Time so Pedro can work on minimizing his steps per day. 
  • A reminder that SOQuartz is a thing and comes in 8GB variants. 


5.16 rc1

  • Linux Kernel 5.16 release candidate 1 is out, with a very important memory management update, as well as more hardware support.
  • 5.16 will introduce “Memory Folios”, which is a memory management system that
    • “aims “to allow filesystems and the page cache to manage memory in larger chunks than PAGE_SIZE”.
    • And has been shown to improve workloads, such as building the kernel, of up to a 10% performance increase.
  • Looking forward to even more hardware support in the upcoming final release, including:
    • Mainline support for the Raspberry Pi 4 Compute Module.
    • More Apple M1 support.
    • RISC-V hypervisor support for KVM.
  • And this is so cool, there are m68k updates, which means more support for Linux on my vintage computer hardware:  
    • My Atari computers, Amiga and some of my Macs :-D
  • Improving memory management will create some nice waves of performance improvement down the line.
  • This has some of the moon code Tak worked up for the MOTU MK3 series. 
  • I’m sticking with 5.10 until all the audio gremlins are worked out. 



  • SVG by default, is someone taking a crack at inkscape with a better modern UI?
  • A UX/UI web based collaboration tool that is not only open source, and uses SVG, but is platform independent.
  • It is a great tool for visual designers and developers.


OBS first time setup

  • If you’ve ever wanted to OBS on Linux this might be of use.
  • It should get you started with setting up an interface, microphone, and webcam.
  • Basic game capture.
  • Basic overlays.

Slice of Pi

RasPi OS on Debian 11


  • A new version of the Raspberry Pi OS is here with lots of major changes, and it is now based on Debian 11 “Bullseye”.
  • The desktop and applications have switched to the GTK+3 user interface toolkit, which will create a cleaner look and feel.
  • Another major change is that the RPi OS has a new compositing window manager, mutter, which replaces the openbox window manager from previous releases.
  • And more window effects, such as animations and shading, are now possible, as well as being Wayland compatible for the future.
  • But because mutter uses more system resources, if you don’t have a Pi with at least 2GB or more of RAM, the older openbox window manager will still be used.
  • There is a new notification manager in the taskbar like other Linux OSs.
  • And a new updater plugin that utilizes the new notification system, which provides a graphical way to install updates without needing to use a terminal window.
  • Thar be dragons. 
  • The switch to libcamera, while a good thing has caused a few projects to reworks things. 
  • Lots of updates for the desktop. 
  • I know it can do light desktop things but I still view the Pi as a headless device. 
  • GTK3 and mutter, because the Pi is well known for its massive powerhouse of a CPU/GPU combo.





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