@LovesTha@floss.social
@LovesTha@floss.social avatar

LovesTha

@LovesTha@floss.social

A melbournian with many interests:

  • Christian (very liberal)
  • Embedded Linux Engineer
  • Magic The Gathering judge
  • Mechanical keyboard enthusiast (mostly DIY, all very small, Colemak layout)
  • Trying to get into woodworking

All too often I come off as argumentative, I'm working on it but definitely a work in progress. Also frequently more pedantic than I'm comfortable with.

Avatar and header from: https://www.extremelyfungible.com/

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LovesTha, to random
@LovesTha@floss.social avatar

I'm trying to figure out what is wrong with my little old Optiplex running NixOS.

Every minute or so iowait spikes to 50% and everythign is sluggish. iotop shows nothing interesting, no app is doing more than 1M/s, total is <2M/s.

dmesg has no new events in that time, but I do have a USB port that keeps dropping and coming back (could it be that stumbling and recovering without a disconnect? I don't think so as those disconnections occur without high iowait)

Any ideas?

LovesTha,
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@jpm Any good way to measure?

(I'd love such events to be shown in dmesg....)

LovesTha,
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@lgsp @mondoman712 Painting a foam brick with a rubbery paint should collapse down well in a bag and spring up to full size really quickly

LovesTha, to random
@LovesTha@floss.social avatar

That is a lot less disks than I expect, hopefully this is just a cable/card reseating issue

LovesTha,
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Bugger the SATA card does not appear to be working since I installed the new 2.5G NIC.

It doesn't work after removing the NIC, or in any other pcie port.

This is weird.

And very annoying.

LovesTha,
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But both show up in lspci (so the bios not informing me about them is either a bug, or the actual issue)

LovesTha,
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I wonder how much is just that I didn't run updates recently or try rebooting it....

LovesTha,
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SATA card's LED's indicate it has links to 5 drives (the correct number)

We'll see what 3 months of updates does

LovesTha,
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What causes /dev/disk/by-uuid to have 6 devices but /dev/disk/by-path to have 20?

LovesTha, to kicad
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Anyone know of a way to place components on a PCB in a nice even grid with ?

LovesTha, to random
@LovesTha@floss.social avatar

What interesting style options can I make for a keyboard ?

I mean in the way I place components and traces.

Current ideas:

  • Be hyper strict on horizontal top, vertical bottom (or maybe a 45 degree rotation of that). Although this will look a little odd in use as this is a split keyboard and I'm intending to use the one PCB flipped for the second side.

  • Curved traces. Sort of the obvious option.

Anything else?

LovesTha,
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@Showroom7561 @ByGourou any other form of transport is better than any form of car ;)

LovesTha,
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@Bytemeister @hobovision which is another reason the range anxiety narative is harmful: people buy EVs with batteries larger than they need

LovesTha,
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@Bytemeister Did I say you did?

Not every reply is arguing against you, I was agreeing with you and pointing out one of the factors going into EVs having batteries larger than needed

LovesTha,
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@dillekant @Anamnesis There is also too many PHEV's that are given to people as work vehicles when they have no option to plug in. Ideal, the right user and real world can all be very different scenarios.

Don't take any numbers at face value, actually understand what is being measured.

LovesTha,
@LovesTha@floss.social avatar

2-7kg personal vehicles are optimal efficiency, 20-70kg personal vehicles allow for everyone to do anything (okay some of the larger electric wheelchairs blow past 70kg pretty easily, but allow me some artistic licence).

Even busses aren't amazing on vehicle weight per person: 16,000kg for 50 people is 320kg per person. Good suburban trains bring that back down to 230kg per person.

So for cars to be viable your 5 seater needs to be 1600kg max. And one needs to actually use those seats.

LovesTha,
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I was intending it as an indication that individual cars are hard to justify.

Additionally cars have inefficiencies around parking (time/energy spent doing it, space required) that PT doesn't.

They are only a good solution when ignoring/socialising so many of the costs and prioritising things that are really not important (or from a lack of imagination of what else is possible)

LovesTha,
@LovesTha@floss.social avatar

@Habahnow @PastaCeci "I want to do it my self" says man purchasing petrol from Iraq to fuel a car manufactured by thousands of people and assembled in a dozen countries.

Anyone actually doing things by themselves isn't concerned with car policy as they know they can't produce a car.

They already are happy to purchase things from a store that have been delivered to that store in a collective way, what is weird about getting wood delivered to their property?

LovesTha, to random
@LovesTha@floss.social avatar

Am I crazy, but debounce logic an input (say a switch on a keyboard) shouldn't introduce latency, just restrict the minimum time an input is registered?

Debounce isn't trying to filter for noise but to ensure that bounces aren't treated as extra presses, so updating the output signal on the first state change should be safe and then the debounce can hold the new state until the debounce period has passed.

Am I missing some key concept?

pfm, to television
@pfm@edolas.world avatar

I'm looking for TV series, aired probably mid-1990's (in Poland it was aired around 1997 or 1998).

There was a guy trying to solve some mystery (or mysteries?), perhaps working alone. I recall a single episode where he noticed that while holding a certain mysterious object near him, objects behaved unexpectedly, e.g. Coriolis effect was reversed (working in opposite direction). I think he was trying to contact a person from his past, maybe a brother or father.

Each episode ended (and probably started) with a music theme involving tubular bells.

It is definitely not "Nowhere Man" with Bruce Greenwood, nor "The Pretender" with Michael T. Weiss.

I'm studying IMDb's TV series list from 1990's but it's a very long list... I'll be very happy if anybody gives me a hint or some title to try!

Please boost!

LovesTha,
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@pfm I miss shows that explain the premise in a voice over in the credits.

LovesTha,
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@good_hunter @fetter everything stated above is correct, but I think the most correct bit is "I can't tell"

The most likely thing to notice may be less flats with the larger tyre, but even that is really hard to quantify in the real world.

I wouldn't fret too much, just have fun tinkering and riding :)

jpm, to random
@jpm@aus.social avatar

Fanning out a 0.4mm WLCSP. Let's see if anyone's willing (or able) to make this abomination...

LovesTha,
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@jpm All that and still 2 pads not fanned out

(not that I think it is possible to do it without missing 2 pads)

LovesTha,
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@jpm There is the option to go via crazy (including blind vias) and break it out on 3 layers without any traces threading between pads, but that isn't going to make it easier to manufacture.

LovesTha,
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@bull @CEOofmyhouse56 $270 sounds pretty reasonable. Some of the cost is that the right tools make such a job much easier, and it's very hard to have employees skilled in things like this constantly busy.

Also they can charge high because it is such an annoying job for most people, so at a high cost people will still pay.

LovesTha,
@LovesTha@floss.social avatar

@bull And a supply of 1000 different types of trim clip to replace the clips that get broken :)

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