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JetKVM Mini

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Re: JetKVM Mini

#21

Post by xcafebabe »

LoganDark wrote: post #10

Are there any good KVMs for gaming? Right now, I use a capture card for video, connect the mouse directly to the destination, and use a piece of software called Deskflow to transmit my keyboard. But Deskflow occasionally crashes, so it'd be nice to have a hardware solution (also that can be used for BIOS/etc). And Deskflow also won't work if I install SteamOS, once Nvidia works. I looked at making a solution myself,…

Most KVMs that fail at 4K get the EDID wrong. They either send their own fixed one (often maxing out at 1080p or 4K30), or they reconnect the display on every switch, so the OS thinks it's a new monitor and resets your scaling. Look for one with EDID emulation.

For high refresh 4K you also need HDMI 2.1 or DisplayPort with DSC support, and a lot of "4K" KVMs don't have it.

Also, 1080p divides evenly into 4K, so turn on integer scaling in the Nvidia or AMD settings and 1080p will look sharp instead of blurry.

Re: JetKVM Mini

#23

Post by cyh555 »

yonatan8070 wrote: post #19
theanonymousone wrote: post #5

It may be worth noting that this is not _that_ KVM, but this one: https://en.wikipedia.org/wiki/KVM_switch I learnt this first myself from HN, a few months ago.

It not exactly a KVM switch, which allows you to have one set of keyboard, mouse, monitor connected to multiple PCs and switch between them. This is an IP KVM, which lets you send keyboard and mouse inputs and view display output remotely over the network.

Right, I was confused when it has the wifi/ethernet port

Re: JetKVM Mini

#24

Post by LoganDark »

xcafebabe wrote: post #21
LoganDark wrote: post #10

Are there any good KVMs for gaming? Right now, I use a capture card for video, connect the mouse directly to the destination, and use a piece of software called Deskflow to transmit my keyboard. But Deskflow occasionally crashes, so it'd be nice to have a hardware solution (also that can be used for BIOS/etc). And Deskflow also won't work if I install SteamOS, once Nvidia works. I looked at making a solution myself,…

Most KVMs that fail at 4K get the EDID wrong. They either send their own fixed one (often maxing out at 1080p or 4K30), or they reconnect the display on every switch, so the OS thinks it's a new monitor and resets your scaling. Look for one with EDID emulation. For high refresh 4K you also need HDMI 2.1 or DisplayPort with DSC support, and a lot of "4K" KVMs don't have it. Also, 1080p divides evenly into 4K, so turn…

I do use integer scaling. That's what makes 1080p bearable on my 4K display, and not other resolutions that don't divide evenly into 4K.

An annoying quirk is that I have to use the Nvidia control panel specifically to get Windows to send a 1080p signal as otherwise, it will just upscale 1080p to a 4K signal. It makes no fucking sense to me why that would be the default but whatever.

Re: JetKVM Mini

#25

Post by LoganDark »

noelwelsh wrote: post #16
LoganDark wrote: post #10

Are there any good KVMs for gaming? Right now, I use a capture card for video, connect the mouse directly to the destination, and use a piece of software called Deskflow to transmit my keyboard. But Deskflow occasionally crashes, so it'd be nice to have a hardware solution (also that can be used for BIOS/etc). And Deskflow also won't work if I install SteamOS, once Nvidia works. I looked at making a solution myself,…

I don't really understand your setup, but if you throw enough money at ATEN they will be happy to give you a KVM that handles 4K @ 240Hz. Supporting high refresh rates is the main thing that would keep me from using most KVMs for gaming.

Ah, I neglected to mention that my keyboard isn't separate hardware. I'm using the built-in keyboard and display of my laptop, and would like to continue doing so. So hardware switches that depend on dumb monitors and keyboards don't work for me (and that's why I said KVM, not switch).

Re: JetKVM Mini

#26

Post by tidbeck »

It is really hard to find on the site what kvm stands for. Guess people going there knows what it stands for but think it could be spelled out once at least.

Re: JetKVM Mini

#27

Post by swiftcoder »

LoganDark wrote: post #20
swiftcoder wrote: post #18

Earlier quoted context omitted.

> simulating a USB client device ... requires specialized hardware that is also very expensive Pretty much any off-the-shelf SBC can present itself as a USB HID device like a keyboard. You can buy a very capable rp2040-based board for What part of this equation requires expensive hardware?

The part where I want wired ethernet to that SBC, not some funky proprietary wireless chip as in ESP32. I almost found a solution, but I've been unable to get my picoprobe to properly flash and reset the board for some reason, so I haven't been able to use it for development. I'll have to troubleshoot that again sometime if I enter another bout of caring.

> The part where I want wired ethernet to that SBC,

In that case the path of least resistance becomes something like a $22 NanoPi NEO (has onboard ethernet, widely used in PiKVM setups)

Re: JetKVM Mini

#28

Post by KwanEsq »

LoganDark wrote: post #24
xcafebabe wrote: post #21

Earlier quoted context omitted.

Most KVMs that fail at 4K get the EDID wrong. They either send their own fixed one (often maxing out at 1080p or 4K30), or they reconnect the display on every switch, so the OS thinks it's a new monitor and resets your scaling. Look for one with EDID emulation. For high refresh 4K you also need HDMI 2.1 or DisplayPort with DSC support, and a lot of "4K" KVMs don't have it. Also, 1080p divides evenly into 4K, so turn…

I do use integer scaling. That's what makes 1080p bearable on my 4K display, and not other resolutions that don't divide evenly into 4K. An annoying quirk is that I have to use the Nvidia control panel specifically to get Windows to send a 1080p signal as otherwise, it will just upscale 1080p to a 4K signal. It makes no fucking sense to me why that would be the default but whatever.

Can't you do the same thing in Windows' own Advanced Display Settings, by toggling the resolution in list of modes? (I might be remembering the naming wrong). That seems to work to change the "Active Signal Resolution" or whatever it is. But perhaps the Nvidia method is faster.

I agree that it's insane it works this way though.

Re: JetKVM Mini

#29

Post by LoganDark »

swiftcoder wrote: post #27
LoganDark wrote: post #20

Earlier quoted context omitted.

The part where I want wired ethernet to that SBC, not some funky proprietary wireless chip as in ESP32. I almost found a solution, but I've been unable to get my picoprobe to properly flash and reset the board for some reason, so I haven't been able to use it for development. I'll have to troubleshoot that again sometime if I enter another bout of caring.

> The part where I want wired ethernet to that SBC, In that case the path of least resistance becomes something like a $22 NanoPi NEO (has onboard ethernet, widely used in PiKVM setups)

Oh, you were talking about SBC, not embedded. I even echoed it, should've noticed. Whoops.

Maybe I'll look into that, wouldn't require messing around with the picoprobe. Thanks!

Re: JetKVM Mini

#30

Post by mickeyp »

Meh. The challenge is 4k+ at high display frequency that doesn't cost the same as a small boat. There are gazillions of KVM switches that do 1080. That's easy.
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