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you know the computer thing is it plugged in?

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irelephant

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Modern software development. (irelephant.neocities.org)

submitted 1 day ago by irelephant to c/iiiiiiitttttttttttt

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[–] [email protected] 10 points 15 hours ago (1 children)

Last week at $DAYJOB, we wanted to connect a Raspberry Pi 4 to a monitor. Raspberry Pi 4 has a Micro-HDMI port. The monitor has DisplayPort and DVI.

So, we went to IT support to see, if they have anything to make that work. Well, only thing they have with Micro-HDMI is an adapter that brings it onto VGA, because that's apparently an adapter someone needed.
Now you'd think they might have VGA-to-DVI, but nope, we had to route through normal HDMI in between. So, the chain of adapters we now use is:

Micro-HDMI → VGA → HDMI → DVI

Oh, and for good measure, the HDMI-to-DVI adapter also has a USB-plug dangling off the side, which definitely won't get routed through VGA.

[–] [email protected] 2 points 14 hours ago (2 children)

But it works, yes?

[–] [email protected] 4 points 13 hours ago (1 children)

Maybe. By including VGA, the signal will be converted from a digital signal to analog, then back to digital. This might affect visual quality and color reproduction, and limit max resolution to about 1080p.

[–] [email protected] 3 points 12 hours ago

Oh yeah, it probably kills the quality, but we only need it to look at the terminal output of the Raspi while it's booting, so quality really doesn't matter...

[–] [email protected] 1 points 12 hours ago

Surprisingly, it does, yeah. Beforehand, we had independently tried hooking up a Raspberry Pi 3, which has a normal HDMI port, and we had tried two different HDMI-to-DisplayPort adapters, which wouldn't work for whatever reason. So then seeing this chain of three adapters work without problem was kind of amazing.

[–] [email protected] 9 points 22 hours ago

Why do you have to call out my Factorio playthrough

[–] [email protected] 16 points 1 day ago* (last edited 1 day ago) (1 children)

Remove the ground pin and it'll work fine. Just make sure your insurance covers electric fires.

[–] [email protected] 3 points 20 hours ago

Either way, really, the cord isn't grounded

[–] [email protected] 18 points 1 day ago (1 children)

This would be a decorator pattern. Not sure if this is the right use case tho

[–] UndercoverUlrikHD 17 points 1 day ago (2 children)

It works for now, we can refactor it later.

[–] [email protected] 7 points 1 day ago

Narrator: But they never did.

[–] ulterno 7 points 1 day ago

I remember doing this and then refactoring my code twice.

At least I did it before handing it over.

[–] [email protected] 12 points 1 day ago (1 children)

Where do they have power sockets with two round European-style pins and two flat North American-style pins, and what voltage comes out of them?

[–] [email protected] 2 points 13 hours ago

I’m pretty sure it’s a “shaver only” socket so it would be 110V, 200mA, but at 50Hz.

[–] [email protected] 6 points 1 day ago

I kind of expected it to spark and smoke a bit when plugged in. To be accurate.