Ukraine received 10 ALTO NG light trainer aircraft for future combat pilot training. Five were provided by the Czech government, while five more were purchased with support from the Czech charity fund Dárek pro Putina. #Ukraine

The processed recordings of the three #CompArch B0B35LSP lectures I presented have been updated/reprocessed. I have spent considerable time fixing the blur, which makes the #QtRvSim #RISCV simulation sequences especially less readable. There have been more problems, mainly in the professional #BlackMagic setup at our university. Even after some reports and related fixes, there seems to be at least one frame missing in every 4k recordings, so there is no match between the number of frames, recording time, and frame rate. This results in the detection of the file as a variable frame rate one by #kdenlive and even other tools (i.e. commercial on colleague’s MacOS). This results in transcoding to proper 25fps during import. There is an option to choose that as lossless, but when I already have 50GB from the original 1.5-hour recording, then I cannot imagine what the size would be. So there is degradation, and when the project is FullHD, and I want to expand one quarter of the original https://youtu.be/pqW9_1t5Y5U 4k video, which is holding my presentation monitor and projector output to the whole FullHD screen, then it leads to practical half resolution. Even though I have spent time with full 4k processing, then final scale down to FullHD loads to interpolation and blur, even for the nearest pixel select option. I have solved the problem by extracting the top-right quarter of the input using ffmpeg with high-quality encoding, then I have imported this new screen file, added it to the timeline after the already edited lecture, and then done precise manual replacement/switch of both audio and video chains in the “*.kdenlive” file to place this extracted screen to all already edited chunks in the correct playlist. I have then even replaced the converted 25 fps sources with the problematic original ones and re-run rendering, with confirmation of a VBR warning about possible skew between audio and video. Quite a lot of time was spent on incorrect output from a professional and probably very expensive setup. I have never had such problems with #opensource #obsstudio when using my old Intel HD graphics-based laptop (I have objected to signing the NVIDIA NDA at the university and do not want to use their HW if at least a little possible) to capture and process FullHD 50 Hz and sometimes even 4k 25 Hz videos from abandoned 4k #DataVideo camera with uncompressed stream over HDMI and USB CamLink. I would expect that if the expensive HW producers provide full resources on how to update, correct, enhance, and replace SW and firmware in their products to the community, then it would save a lot of time for everybody.

Xiaomi Mi 8 (codename dipper) landed on my desk today.

Inserted SIM card, logged in into Xiaomi service a voila, unlocked.

I'll try to introduce some basic support, but without active community don't expect comparable experience to OnePlus 6 or Xiaomi Poco F1.

Seriously, we're happy that people use our work, but we need active devs.

We working on phones which aren't "cool" today. Phones based on Snapdragon 845 are phones which people actually daily-drive.

#sdm845 #MobileLinux #LinuxMobile

The #SpaceWire ( #satellite oriented wired communication standard) #OpenSource #GNU/ #Linux software support (C library, CLI, Python) for Remote Memory Access Protocol ( #RMAP ) initiator and target realized by STAR-Dundee RMAP IP Cores integrated into custom variant of TEDIA PCD-8006 PCIe expansion card developed by Kyaw Htet Lin at #CVUT #CVUTFEL and his related thesis have been published.

The project page https://gitlab.fel.cvut.cz/otrees/spacewire/spw-pcie-tedia, Wiki, Thesis PDF, Presentation PDF and complete record with review reports https://dspace.cvut.cz/entities/publication/490357d1-8609-414e-91ad-87d4cc0e9b7e.

Longer term plan is to continue with support of more SpW IP cores, #RTEMS and #Zynq and #BeagleV/ #BeagleVFire with potential to be used even for space qualified #PolarFire #SoC.

@Oskar456 Yes, I am fully aware that there is no additional security when I use Eduroam network and in general that each connection, may it be except my local wired home network behind NAT and with limited external ports open, has to be considered as the wild environment. Eduroam federation and authentication have big advantage, that I can connect at lot of research organizations worldwide without negotiation with local admins. So yes, the referred Czech TV warning and claims are useless. The devices should be updated and do not allow any brute force and malformed packets and connections to go in. For public chargers, the USB-A to C cable with power wires only could be solution for slow but relatively safe charging.

@Oskar456 I have never let run Eduroam installer on my computer. Sane entities, like #CVUT FEL and CESNET use well established Root CA certificates which are available on every GNU/Linux system which could be selected directly in teh GUI tools or WPA supplicant configuration. Problem si that who is not careful usually does not setup required CA pro authentication and other problem is if

 altsubject_match="DNS:radius.fel.cvut.cz"

is not set. As I understand it, if the radius DNS match and specific CA are not set, then the weak MS-CHAPV2 challenge-response cryptography with MitM is susceptible to brute force attacks. We probably can again tanks to Microsoft for this standard and problem to switch to something better because it would not work with their systems at Eduroam scale.

linux-image-7.1-sdm845 is ready for testing!

This release brings major improvements across the sdm845 device family:

✅ Rear camera on SHIFT 6MQ
✅ Both front cameras on Pixel 3
✅ NFC on SHIFT 6MQ and Pixel 3
✅ Better overall stability
✅ Improved OnePlus 6 display driver
✅ Rewritten OnePlus 6T driver
✅ Pixel 3 touchscreen support moved from downstream to upstream patches
✅ Many patches improved and upstreamed

And that's only part of the changelog.

#LinuxMobile #MobileLinux #sdm845 #OnePlus6

@chiptronCZ In your ESP32 list and comparison, TWAI/CAN/CAN FD #canbus support is missing completely. The most of the #Espressif #ESP32 family members have standard CAN support. ESP32C5 is the first with CAN FD (2x), ESP32S31 CAN FD (2x) and ESP32H4 CAN FD (1x).

Thanks to the great work done by @wrenix, @valpackett, and many others (certainly not me), I've finally gotten calls working on my Fairphone 5.

While there's some kinks left to be ironed out, call quality is excellent out of the box (certainly better than my PinePhone (Pro)).

I've pushed a `linux-sc7280-calls` kernel to my arch repo for anyone who wants to try it. The following PR discussion should help set it all up:

https://github.com/sc7280-mainline/linux/pull/27

#linuxmobile #fairphone #archlinux #arch

@donhawkins I am happy that I did not like LinkedIn's closed nature from the start, so I have never registered, even though the elites of our university suggested that all teachers in the Open Informatics program should join their LinkedIn group. I am a long-time registered user on OpenHub and even GitHub, which has been bought by Microsoft as well. And I login (almost one year already) from my GNU/Linux system to educational sites which we build for students and local git services through Microsoft Entra ID due to decisions of our Microsoft-favoring university's central IT department. So each day there is a risk that somebody from US intelligence decides to impersonate me in study systems or grab all mine, our researchers and students data, or deny us access to our systems. Big shame to every IT person who pushes this direction at our university and elsewhere. It seems that this is not enough and Chat Control law will push us all to Peter Thiel's Palantir and Persona forcibly.

I wanted the blue checkmark on LinkedIn. The one that says “this person is real.” In a sea of fake recruiters, bot accounts, and AI-generated headshots, it seemed like a smart thing to do.

So I tapped “verify.” I scanned my passport. I took a selfie. Three minutes later — done. Badge acquired. I felt a tiny dopamine hit of legitimacy.

Then I did what apparently nobody does. I went and read the privacy policy and terms of service.

Not LinkedIn’s. The other company’s.

https://thelocalstack.eu/posts/linkedin-identity-verification-privacy/

UK, welcome back to Erasmus+ 🇪🇺🇬🇧

The EU and the United Kingdom sealed the deal to bring the UK back into Erasmus+ from 2027.

We are rebuilding opportunities for the next generation to study, work and grow together, giving people the chance to connect across borders once again.

It will also help create and deepen partnerships between our academic institutions.

Together again through learning, exchange and connection 🤝

More: https://link.europa.eu/MHc9JP

New: France said it plans to move its government computers currently running Windows to the open-source operating system Linux to further reduce its reliance on U.S. technology.

https://techcrunch.com/2026/04/10/france-to-ditch-windows-for-linux-to-reduce-reliance-on-us-tech/

First picture from the dual front-facing IMX355 sensors on #Pixel3 📸

Both lenses are now alive under mainline Linux — standard + wide, just like Google intended. Still early bring-up, but seeing real images come through makes it very real.

Patch series:
https://lore.kernel.org/phone-devel/20260411-pixel3-camera-v2-0-41b889abb14c@ixit.cz/T/#t

You can find already applied patches in the integration branch here:
https://codeberg.org/sdm845/linux/

#LinuxMobile #MobileLinux #Mainline #Kernel #OpenSource #sdm845

On a bit of a streak today 🔥

Work in progress, but already a big milestone: the camera sensor on my SHIFT6MQ is up and running 📷

Still a lot to refine, but seeing the first photo come through feels great. Sharing the very first shot taken on mainline Linux with it 👇

#SHIFT #SHIFT6mq #LinuxMobile #MobileLinux #WIP #sdm845 #mainline

#RabbitHole: @okias@floss.social is doing a lot work to mainstream #sdm845 patches to the #linux kernel. During a meeting of Phosh.mobi e.V. members I learned that there seem to be not many testers for #Shift6mq #axolotl. I still had a broken Axolotl sitting on my desk…

• repaired the phone that originally had been bought as part of a #ShiftPhone8 deal
  • cleaning inside (residue from water contact)
  • new display (two lines of broken pixels)
  • new usb-c pcb (didn't charge, data broke during testing)
• learned about edl to recover if phone wouldn't boot to fastboot anymore (yes, really had that situation later 😉)
• learned about the difference of fastboot and fastbootd mode
• learned about u-boot and the boot chain on the phone
• learned about dynamic partitions used in Android and how to use them from #linux
• learned about pmbootstrap
  • to build my own device images (mixture of existing axolotl and sdm845 to be compatible to the phone and the usage with u-boot and dynamic partitions)
  • changed pmbootstrap to build small (92M) boot image for boot_a/b partition
• tried to get more space for out of the phone for boot & root than provided by boot_a/b and system_a/b
  • resized userdata of Android
  • created two additional partitions for postmarketOS
• learned how to recover from kernel not booting without re-flashing
  • u-boot usb mass storage mode exports the mass storage of the phone over usb-c
  • phone connected to an aarch64 system (#Librem5 running #Mobian)
  • mounting encrypted partition, boot and what-else is needed
  • installing kernel packages via apk while in chroot on Librem5
• learned how to compile a kernel using ./envkernel.sh and pmbootstrap

Now I'm quite sure I can recover from any failure I will encounter while testing sdm845 kernels and I have the following setup on my Shift6mq:

• ShiftOS-L with small userdata partition in slot_b
  • applications for demoing the phone installed
  • work profile to contain closed source applications
• postmarketOS edge installed on partitions behind userdata
  • u-boot on rescue_a
  • 1GB pmOS_boot
  • 60GB pmOS_root
  • applications for demoing
  • multi-user: my testing user, demo user
  • everything except cameras work
• dual-boot possible on-the-go: enter fastboot (by holding vol-up at start), change slot, reboot

I put my notes on the postmarketOS wiki.

I started two merge requests:

• support audio configuration when started through u-boot in alsa
• add support for booting using u-boot and dynamic partitions to axolotl

I'll carry the phone at #clt2026 - Chemnitzer Linux Tage 2026 - on saturday 28th this month. I'll mostly be around the "Linux on Mobile" booth.

The #cvut #cvutfel OTREES booth at InstallFest 2026 #InstallFest There are #Linux and #NuttX running on x86 PC, RISC-V and ARM. The #QtRvSim simulator is running on x86 and RISC-V Milk-V Pioneer. We have there APO course students semester projects running on MZ_APO. #pysimCoder on the screen as well. The NuttX introductory workshop has been visited by many people. All STM32L476RG based NUCLEO-L476RG kit graciously provided by STM and ETC - Embedded Technology Club.

The article Design of Prototyping Control Unit for BLDC/PMSM Drives and Piezoelectric Actuators documenting our work on #NuttX #RTOS and #pysimCoder has been published. It documents SaMoCon Open HW and SW motion control platform as well.

We have submitted another related presentation to the Apache Community Over Code 2026 in Glasgow, from October 10 to 15. The NuttX call for presentations is still open for this event.

We hope to be available on Open Source Summit Europe in Prague in October, if the price bar/access rules allow that to our students and us, and we will be available (for sure) at #LinuxDays in Prague, which is (in a contrast) a really freely accessible community organized event in Prague with long history, and this year exactly before @linuxplumbersconf and Open Source Summit Europe

Then next task can be face identificatio and tracking. Again this is taught at #cvut #cvutfel . Again task often used in Credit Test in the frame of the A6M33BIO - Biometrics course lecture 6, lecture 7.

@pavel Great. I expect that in the longer term it should switch to full range scan and sharpness computation only for really large change in statistical parameters. It should try to run some feedback loop to track focus instantaneously with some estimation whether changes are noise only and when change in statistic represent already high probability that sharpness changes. Could be really nice task for some of our #cvut #cvutfel control theory oriented students with combined computer vision knowledge. I am open to supervise such project, bachelor and or master theses.