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The Level1Techs KVM (Keyboard, Video Mouse) Switch - 4k/60hz monitor & USB Switchbox | Level One Techs

#303

Wifes computer just did latest drivers since i just upgraded her to 1060 for dual dp since her 970 didnt have it, is there a separate DP driver Firmware?

Is there a FAQ page for this might be worth wile since reading 300 posts is not my definition of fun.

(Windows only?
https://www.nvidia.com/object/nv-uefi-update-x64.html
Still looking)

Guess ill have to move it to my desktop to update as your computer is linux only. Thx Nvidia

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#304

This is the thing

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#305

I got that much, just was still looking for linux version doesnt seem to exist (didnt really want to remove it from her desktop)

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#306

Rewired everything, updated firmware on gpu. Seems to work for now, had a weird thing when switching between ports but ill keep and eye on it and see if it stays working.

Have side issues to Tshoot (Linux TB3 Dock) but pretty sure the windows boot works (need to check since changes, side not XPS 15 even with it having a 1050ti it doesnt get the firmware for dp.

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#307

Nvidia has changed stuff in newer drivers assuming everyone has that fw update. So that’s annoying.

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#308

Interesting electrical noise issue not the KVM’s fault but something for people to be mindful of.

As part of cable management I had a lot of wires cramped up in an Ikea wire shelf thing, an incandescent desk lamp cable was in there a long with DP cables, USB cables etc. Turning the light on/off would cause the smaller monitor to blank out for about 2 seconds then recover. Sometimes with power on, but 100% when turning it off (maybe an inductive kick creating a magnetic field in the 115v lamp line affecting DP signal to the monitor?).

Not sure if this is exacerbated by the fact my 970 dictates I use a DVI to DP adapter for the second feed into the desktop input of the KVM (maybe weaker DVI signal, maybe weaker signal out of the KVM, I didn’t trace the nest of wires the lamp 115vac ran by).

Anywho, when troubleshooting odd issues with your monitors, check for high power lines next to sensitive signal lines.

Typical Level 1 issue, its always layer 1!! I know I know, this isn’t networking though…

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#309

Yeah, I had similar issues with my audio cables recently.

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#310

The culprit

An hand me down, to give background light but maybe it’s time to do the good’ole RGB light strip behind the back of the table.

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#311

I’m wondering about this too. Earlier up in this thread, it sounded like we’d need new physical hardware, but the internals have the display ports/DSP on a daughter card which could potentially be swapped out.

I currently have a 10-bit/HDR display as well, and right now I have to pump HDR content through my PlayStation 4. I was wondering if there were any plans to sell updated internals to this to support a DP1.4 DSP chip.

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#312

Good day all…

@wendell The spring batch of KVM switches, for dual monitors. Do you happen to offer a pre-purchase program for this next round? Would hate to miss out on this.

Looking through this thread and details on the store page. Looks like I shouldn’t have to many issues?

  • Primary Monitor - Asus Swift PG348Q 34" 3440 x 1440, 100 Hz - Gsync
  • Second Monitor - LG 32UD60-B 4K 60Hz
  • GTX 1080Ti
  • Mayflower Objective2 and ODAC amp

Looks like people are getting Gsync to work with these KVM switches?

With this current setup, I should be keeping the total length of the DP cables from PC’s to monitor to 4 meters or less?

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#313

Yep.

Not sure about this one, some people are reporting it working, some not.


Some people have reported (I can’t confirm) issues with higher bandwidths. Not sure if you’ll run into an issue.

I’m actually looking at buying a similar display. If you wind up getting a KVM, can you report your findings?

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#314

absolutely, I can do that… I guess I’ll take my chances with the gsync. Appreciate the info.

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#315


Not sure if any of ya have tried these cables to help alleviate some of the cable issues. But I had issues on my samsung monitors(not using the KVM) and just wanted to see if this cable may help some of you guys.

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#316

Has anyone here attempted to solve the deficiencies of DP hot plug detection with a hardware adapter? Currently, the KVM isn’t of much use to me because I have to put my laptop to sleep every time I switch to it just to get the monitors to detect. I think a complicating factor is the laptop uses discrete graphics when an external display is attached and switches to iGPU when no external displays are detected. So, switching away to another output port on the KVM causes the hybrid graphics to toggle as well.

Anyway, I came across http://paleblew.blogspot.com/p/engdphpdma.html and am considering giving that a shot. Getting eight of them is going to be about 50% of the price of the switch, so I’m not wild about it. But I haven’t seen a better option come up. If someone does have a better option, please share :slight_smile:

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#317

I have one if anyone wants to buy. PM me. Never used.

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#318

Welcome to the forum.

If you want to sell something here your best bet is to make a thread in the B/S/T category. Note that the B/S/T has additional rules to help ensure all parties don’t have a poor experience.

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#319

Awesome. Thanks.

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#320

Hi,

In anticipation of the next batch of dual monitor KVMs being available in a month or two, I was hoping someone could help answer a very basic ‘how do I use a KVM’ question for me.

My set-up is as follows:

I have a work provided Surface Pro with USB 3 and a mini DisplayPort connections. I also have a home desktop with a GeForce GTX 750TI card with a mini-HDMI and two DVI connections.

I’d like to run a dual display setup (currently I have one monitor connected to the desktop). I’d like the KVM to allow me to:

  1. Switch between computer A running extended desktop and Computer B
    running extended desktop
  2. Switch between computer A running extended desktop to Computer A using Display A and Computer B using Display B

It is this second use case (and the various permutations) that I am unclear about. Does a KVM provide this level of control? Any solutions to this?

Also, assuming I get the correct mini-HDMI, DVI and mini-Displayport adapters and I buy two monitors that have displayport, is there any reason why the Level1 KVM would not work with my setup?

Thanks for the help!

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#321

I have a couple of questions about the DisplayPort KVMs which are causing me to hold off on pulling the trigger… It’d be awesome if someone who has used one could fill me in!

Can the USB HIDs be switched independently of the displays? e.g. displays on host 3, USB HID on host 1? It’s a feature of the Aten CS1944DP which I think I’d use a fair amount, and it would be a shame if it were missing from the Level1 KVM.

Likewise, can the audio be switched independently?

Thinking about it, being able to read a PDF copy of the manual would probably answer all my questions. Is there one freely available for download?

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#322

No.

Yes.

There isn’t really a manual. Somewhere in this thread, I covered most of the keyboard commands, which pretty much covered the gamut of it’s capabilities.

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