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   kaia (kaia@brotka.st)'s status on Sunday, 28-May-2023 17:11:54 JST kaia
   does pressing the reset button send a signal to the computer in the same way Ctrl-Alt-Delete does or is it something else?
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     Puniko ? (puniko@mk.absturztau.be)'s status on Sunday, 28-May-2023 17:13:44 JST Puniko ?

     in reply to

     @kaia@brotka.st usually buttons are more a hardwired solution to reset a pc

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     chjara (chjara@snowdin.town)'s status on Sunday, 28-May-2023 17:13:53 JST chjara

     in reply to
     @kaia wdym by reset button, like the power button? it does send a signal but it's a different pathway than keyboards
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     kaia (kaia@brotka.st)'s status on Sunday, 28-May-2023 17:14:57 JST kaia

     in reply to

     • chjara
     @chjara
     yeah exactly. so it's signal based and not mechanical/power interruption, thanks!!
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     iced depresso (icedquinn@blob.cat)'s status on Sunday, 28-May-2023 17:37:54 JST iced depresso

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     • iced depresso
     • Tosti ?
     • 「セル」cell (سل)
     @cell @kaia @tost a lot of power switches back in the day were legitimate circuit breaking switches too. if you turned a thing off it was going down hard and immediately and was definitely not going to vampire power off the battery all night
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     iced depresso (icedquinn@blob.cat)'s status on Sunday, 28-May-2023 17:37:55 JST iced depresso

     in reply to

     • Tosti ?
     • 「セル」cell (سل)
     @cell @kaia @tost yup
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     「セル」cell (سل) (cell@pl.ebin.zone)'s status on Sunday, 28-May-2023 17:37:56 JST 「セル」cell (سل)

     in reply to

     • Tosti ?
     @tost @kaia what was it like in the pre-ACPI days? “it is now safe to turn off your computer”, but were there reset buttons?
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     Tosti ? (tost@mk.toast.cafe)'s status on Sunday, 28-May-2023 17:37:57 JST Tosti ?

     in reply to

     @kaia@brotka.st
     the power button and reset buttons send a signal to your motherboard
     the typical handling of the power button is to send a signal to your OS and then force power off if you keep holding it
     the typical handling of the reset button is to just yeet everything, bypassing the OS entirely (which is why in logind you can find settings on what to do if the power button is pressed but not the reset button)

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     Tosti ? (tost@mk.toast.cafe)'s status on Sunday, 28-May-2023 17:37:59 JST Tosti ?

     in reply to

     • 「セル」cell (سل)

     @cell@pl.ebin.zone @kaia@brotka.st I'm too much of a technological zoomer to know that one, sorry

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     「セル」cell (سل) (cell@pl.ebin.zone)'s status on Sunday, 28-May-2023 17:38:19 JST 「セル」cell (سل)

     in reply to

     • iced depresso
     • Tosti ?
     @icedquinn @kaia @tost i remember computer power supplies with power passthroughs for the monitor…but never actually used them for that purpose :blobcatblep:
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     ringo (ringo@talk-here.com)'s status on Sunday, 28-May-2023 17:38:21 JST ringo

     in reply to

     • iced depresso
     • Tosti ?
     • 「セル」cell (سل)
     @icedquinn @kaia @tost @cell i miss those off buttons. lol
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     「セル」cell (سل) (cell@pl.ebin.zone)'s status on Sunday, 28-May-2023 17:42:44 JST 「セル」cell (سل)

     in reply to

     • iced depresso
     • Tosti ?
     • ringo
     @ringo @icedquinn @kaia @tost so essentially the OS had no say in the actual power state of the computer back then?
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     iced depresso (icedquinn@blob.cat)'s status on Sunday, 28-May-2023 17:42:44 JST iced depresso

     in reply to

     • Tosti ?
     • 「セル」cell (سل)
     • ringo
     @cell @kaia @tost @ringo yeah sometimes. there was a lot more filesystem corruption back then :ablobcatgooglytenor:
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     Martin Be (martinbe@mastodon.social)'s status on Sunday, 28-May-2023 17:47:52 JST Martin Be

     in reply to

     @kaia Nope, they are not that same. Signal from the reset button goes almost directly to the mainboard's vrm section, bypassing any logic on the mobo. That's an low-level signal. All you do on/with the keyboard goes trough the kbc chip, and also trough the other logical elements like hub, bridge, controllers etc., where is "converted" to an acpi/apic command which can be interpreted/understand by mobo's logic - mostly bios and kbc/smb. So is done since the beginning of the ATX standard era.

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     Martin Be (martinbe@mastodon.social)'s status on Sunday, 28-May-2023 17:58:13 JST Martin Be

     in reply to

     @kaia One more thing. Since the ATX time, computers are not really turned off. Even if you press the power button, and the machine goes down, it is not physically turned off. The power is still (remains) on the mainboard circuits. You can still turn the machine on by pressing some keyboard keys, by wake on lan, wake on usb, by timer etc. The real power of is only possible by pulling the power cable out and by removing the battery from the device.

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     kaia (kaia@brotka.st)'s status on Sunday, 28-May-2023 17:58:33 JST kaia

     in reply to

     • Martin Be
     @MartinBe
     good point :thinking_cirno:
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     Martin Be (martinbe@mastodon.social)'s status on Sunday, 28-May-2023 18:13:39 JST Martin Be

     in reply to

     @kaia Such a fun curiosity. We have now some sort of system hibernation but without saving any data and storing data in the memory, instead of real system shutdown. By the software is a like. Shutting down win95 is totally different from shutting down winXP. I mean internally, by looking what the OS does from the moment of pressing the power button. For modern mobile phones is a same story. They are many such curiosities in the IT world 😉 For example battery level state display.

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