#lowend

2025-10-26

I pushed out a minor patch to my DiskSumo fork, just to remind myself how the program works and verifying my C64 and 1541 hardware are still OK.

Next goal for me is to rewrite the bottleneck routines in machine code in the following order:
- RS232 character reception polling loop.
- Xmodem packet reception loop & checksum calculation.
- Xmodem packet sending loop.
- Disk sector writes and reads?

github.com/aakoskin/DiskSumo

#RetroComputing #Commodore64 #LowEnd #Floppy #XModem #PermaComputing #Slow

2025-09-28

When upgrading to #Mastodon v4.4.5, assets recompilation took over 3 hours on 1 GB #RaspberryPi 3, once finally succeeded. The system failed twice at around 90 minutes for whatever reason and required a power cycle (it's headless and couldn't get any logs). I ended up replacing the SD card just in case...

I wonder if I should start to do the "assets:precompile" step on my X86 box and arm64 Cortex-A53 QEMU then just copy stuff to Pi.

Sunday well spent.

#SelfHosting #LowEnd #SoftwareBloat

Kevin Karhan :verified:kkarhan@infosec.space
2025-09-14

@slaine But even a "truckload" is basically not much compared to #Intel & #AMD, because #VIA basically never did anything beyond "#LowEnd", #Chipset, #Peripherals and #Embedded, whereas with both Intel & AMD one can go from the tinyiest < 5W SoC for fanless Thin Clients up to Dual & Quad-Socket Multt-Core Servers that have more PCIe lanes than any systems integrator could saturate with NVMe drives and GPUs in a 2U - 4U chassis!

  • And again: I wanted to get my hands on VIA stuff because it was neat and cool looking but I wasn't in the position to open up like a GmbH and negotiate deals with distributors just to get my hands on some reference board & case.

Whereas AMD & Intel managed to make deals with a shitload of OEMs and that's why modern #ThinClients rock AMD G-Series and Intel Atom SoCs.

  • So far their move to making #ARM-SoC's didn't change that but rather worsen it.

Add to that how the German subsidiary of VIA got axed and there wasn't even like someone I could mail or fax for a list of distributors that would actually sell to me as an individual.

2025-09-05

Finally migrated away from UEVENT_HELPER to netlink-based solution on my #Linux boards.

"... should not be used today, because usual systems create many events at bootup or device discovery in a very short time frame. One forked process per event can create so many processes that it creates a high system load, or on smaller systems it is known to create out-of-memory situations during bootup."

That text was from 2010 but it took till 2025 until my 32 MB #ARM systems failed.

#LowEnd #Computing

Kevin Karhan :verified:kkarhan@infosec.space
2025-08-27

@cleantext Speaking of #Netbooks, I do have an #EeePC701-4G in my possession and I'm working on an #minimalist , #TUI / #CLI-only #Linux distro ( @OS1337 ) for it and other, #LowEnd / #LowSpec / #legacy / #vintage hardware like the original #RaspberryPi & #Pi0W...

Kevin Karhan :verified:kkarhan@infosec.space
2025-07-25

Personally I wished for like a #LowPower #minimalist #laptop woth like a #Pi0W2 or similar #LowEnd #SBC in it, and just basic expansion and I/O (HDMI splitter, Ethernet with PoE (for charging), USB-C PD for charging, USB 2.0, Webcam, Keyboard with Trackpoint, SSD and a case chug-full with two toolfree-swappable battery units at a price point of the original @pine64 / #Pine64 #Pinebook...

  • Like a chubgus that has a #SolarPanel at the top lid as option and can run like 3 days nonstop on full blast...
2025-06-11

a kind internet friend i've just made recently have made this smol website for me, a typosquatted to my main domain name and i love it.

https://nigalee.dev as my domain is nghialele.dev 😆 i had a good laugh at it, and bro just hand over the sourcecode & domain so now i host on my vm.

fun things, cool people, lovely community!

#lowendtalk #let #matrix #fediverse #lowend

nickbeardednickbearded
2025-06-05

✅ Success! Fell asleep during install… woke up to BashCore Injector fully deployed on:
💻 Acer Aspire One D160 (2009) – 450, 2GB RAM

Everything works, no errors.
If it runs here, it runs anywhere 👌
Tested earlier on , but this was the real 🔥

nickbeardednickbearded
2025-06-04

Testing on the worst laptop alive:
💻 Acer Aspire One D160 (2009) – Atom 450, 2GB RAM.

Ubuntu Server + Injector = full CLI pentesting kit:
🔎
💥
🕸️
🛠️ + more.

Let’s see if this relic can still hack it 🤟🤞

2025-04-30

#USB flash sticks have been around maybe 3 decades. Why they are still so poor technology?

I made a 3 day random access write test with a brand new Kingston/Phison stick.

Good news: it worked reliably on USB 2 port.

Bad news: average throughput was maybe 100 KB/s. USB 3 would be faster but it cannot sustain random I/O very long, instead the device disconnects almost immediately for whatever reason. Reading or sequential write works OK.

What a piece of crap.

#Computing #LowEnd

2025-04-14

#Linux annoyances: #LightDM hardcodes spammy .xsession-errors log file location into user's $HOME and there is no way to workaround it other than patching the program itself. Very annoying on a #lowend #Pi.

Multiple bug reports and patches proposing a trivial fix proposed since over a decade:

bugs.launchpad.net/ubuntu/+sou
github.com/canonical/lightdm/i
github.com/canonical/lightdm/p
github.com/canonical/lightdm/p

etc.

Developers, please don't mess with my $HOME.

#GUI #Usability #Rant

Roman Meliška_roman
2025-04-07

You’ve heard it here before Harvard Business Review noticed:

@asymco & Judd diving deep into iPhone disrupting surgery navigation. With Dr. John Dorman and his Boltnav. On , using , and much more from the theory playbook. Next: Apple Vision Pro.

Delightful and inspiring! podcasts.apple.com/cz/podcast/

Kevin Karhan :verified:kkarhan@infosec.space
2025-04-04

@bohwaz @punkfairie @ajsadauskas @JessTheUnstill @tomiahonen That's exactly the problem, cuz #KaiOS nee #FirefoxOS was a good and solid basis not just for #LowEnd-Devices but could've been excellent for a more #secure mobile OS, as it has good potential for #sandboxing and #KISS-principle'd #Apps that are lean and efficient.

But then again when enthusiasts like @fuchsiii and I were shouting "#ShutUpAndTakeMyMoney!" to #Mozilla, they basically refused to sell any #device, and then we get the "#PSvita-Effect":

Kevin Karhan :verified:kkarhan@infosec.space
2025-03-10

I've yet to see any #GPU at #MSRP in #Germany!

  • They all are #overpriced for no valid reason whatsoever and it pisses me off, because I didn't buy a #GTX1050 or #Vega64 as an #invsstment, but right now both cards.that I was able to snipe at €100 each are actually rising in value because #AMD, #nvidia & #intel only shit out expensive stuff and don't even have MSRP-priced merch available.

Worse there ain't even #LowEnd [< €100] or actual #MidRange [€250 - €500] cards available at MSRP!

2025-03-09

This #ePaper seems to have 7 internal LUT sets for different temperatures. At 20'C refresh takes 4 secs. By fixing temp sensor to > 50'C, refresh takes 3.5 secs and there's no difference in picture.

I copied this "fast" table and started reducing iterations and frame counts so that picture quality still remains intact.

I've now reached < 1 s refresh, even for the full 648x480 and it still looks very nice. And now it's fast enough for simple #Linux terminal use!

#DIY #Computing #LowEnd

2025-03-08

Little progress today but still: Dumped the OTP table data from e-paper which helped a lot. In read direction, these things lack MISO pin so #Linux spidev can't read anything but I was able to do it with GPIO bit-bang from userspace.

So I have a copy of LUT data and I'm now able to modify and re-load it back to device. There's a baseline and method for the optimization.

A crucial document is UC8179 doc that documents the OTP data.

#ReverseEngineering #SaturdayNight #Hobby #LowEnd #Computing

2025-03-08

This week's #ePaper #hacking status: Got partial updates working nicely (pixel-wise) on 15€ unbranded 5.83" WFT0583CZ61. It's just as slow as full refresh, but limits flickering to the updated area, like a single 8x16 char, so the other part of the screen remains readable during refresh.

Now I try to make custom LUTs to make it faster. Nice; all registers are documented but no mention about operation principle whatsoever. Typical trial-and-error #Linux driver programming.

#LowEnd #Computing

2025-02-24

Heh, I've never been an artsy-fartsy graphics guy but I just now recalled how typewriters and matrix printers implemented bold text with 1 color back in the day - just rewind back and type harder!

So I tried the similar with my e-ink display. Just go back and redraw a bold character with 1 pixel offset - and you get a nice readable bold text!

I consider this a major personal achievement of the week.

#Computing #LowEnd #TextMode #Monochrome #ASCII #Guthenberg

2025-02-24

Testing a cheap 6" #epaper display with 80x25 #VGA font (sorry for crappy pic due to light & cabling restrictions).

I've never seen this tech in real life before, and it's simply amazing! Text is better than on many of the paperbacks I have.

I want to simulate #IBM_PC #MDA, and thought 1 color bit is OK but forgot about the attributes. 8x16 font on 640x480 has room for the underline attribute (last 5 lines in the pic). But what about "bright", maybe a dotted line?

#LowEnd #Computing #TextMode

Client Info

Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst