I am a 40-year-old husband and father of four, the proud owner of two canine companions. I have a strong passion for physical fitness and dedicate a significant portion of my time to the gym. However, my foremost enthusiasm lies in the world of electronic equipment and cutting-edge gadgets. On this channel, I am delighted to share my extensive expertise and insights, cultivated through my in-depth experience with various technological gear and innovative gadgets.
- ChatGPT, when asked to write a channel description
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Kvm switches arent used in datacenters anymore, most of the time they just use the IPMI
If the ISP gets pissy with you for using unapproved equipment just say "what you are saying I'm doing is not possible, you told me yourself!" I hate when ISPs do shit like this. Good on you for taking the time to defeat their pointless crap. My ISP gave me a router I hate but I was able to just swap it out for one that doesn't spy on me and it worked immediately.
If it ain’t broke don’t did it
Check out Level1Techs KVM switches.
4th Option just buy a USB Switch and Plugin Booth Computers in the Monitor, using this setup since covid and it works flawless and it was just 20€ for the switch
Switching both monitors between two PCs every couple of minutes (when necessary) isn't really something I wanted to do.
I asked ChatGPT to give me a step-by-step, following the transcript of this video. Maybe it is useful for someone to give a quick rundown of the process, as it was useful for me :)) Step-by-Step Process to Hack the ISP Router: 1. Understanding Hacking Hacking involves gaining unauthorized access to data in a system. The video aimed to gain access by bypassing ISP restrictions on the SFP module. 2. Setup Used the ISP-provided router. Utilized a media converter to switch between fiber and copper media. Connected with a USB type-C Ethernet adapter due to the laptop's lack of an RJ45 jack. 3. Exploring the Router Interface The router’s firmware, Fritz OS, lacked a visible packet capture utility. Accessed the packet capture utility via the hidden URL: 192.168.178.1/capture.html. 4. Packet Capture Removed the SFP module, started capturing traffic, and then reinserted the module. Saved the captured data as a pcap file. 5. Analyzing the Captured Data Used Wireshark to analyze the pcap file. Identified a conversation involving IP addresses 192.168.47.2 and 192.168.47.1 on port 8888. Found the router’s serial number in the payload, crucial for authentication. 6. Replay Attack Extracted the raw payload from the Wireshark analysis. Connected the laptop to the media converter. Ran a replay attack using PowerShell with the command: cat C:\Users\Tomash\Desktop\serial.dat | ncat -v 192.168.47.1 8888 7. Verification Verified successful execution as it brought the network online. The SFP module registered correctly with ISP equipment. 8. Conclusion Created a startup script for automated replay attacks. Optional alternative: Putting the ISP router in bridge mode (though less fun). Toas from Slovenia signing out.
i went for a "cheaper" solution that uses a 4x2 KVM switch for screens only, powered(!) USB(c) switch and a docking station so i can use my laptop over usb (c) only for.. everything with 2x2k @60hz and pc with theoretically 2x4k. i would have preferred this method though
other question: which SFP modules does it support? often devices with 10 gbit/s sfp ports support up to 10 gbit/s meaning they often support sfp tranceiver with lower bandwidth as well, so does your router maybe support 2.5 gbit/s rj45 sfp modules? then you would even dont need a 10 gbit/s switch for getting the 2.5 gbit/s ports and also dont need the extra 2.5 gbit/s port but if multispeed is not supported with these sfp ports then I would prefer to even have one extra 10 GBase-T multispeed port using the Marvell AQC113 chip
Wooow! For that kind of $ I would hope you get at least 4 inputs.
Actually, the price is pretty much in the same ballpark as other devices with the same amount if inputs
given how fiber networks work, it's interesting that they use authentication on the sfp module.
Yeah, I currently use the all the ports on both my monitors to switch directly and use a USB switch for my USB devices...but, every so often, my audio does not properly switch and I find out on my next meeting after lunch switching from my personal PC or my audio drops oddly when somebody switches on the bathroom light (guessing the power peak kills my usb audio)
Taxes are not the reason. Deleware has well developed business courts which are quick and fair for adjudicating business disputes, which happen a lot. This has more value than any tax discount.
I just love this to bits, everything I wanted to know, even the PCB design, as I'd like to design my own server based on OpenSPARC T2 microprocessor some day.
Or buy a multi device mouse and keyboard and a 2 HDMI or HDMI + DP monitor and call it a day. I'm having this setup for ages and it's great
Congratulations! This is how Dežela overtakes Lijepa Naša... Pretty please with sugar on top, do us all a favor and use illumos instead of Linux for the firmware. Post scriptum: we want to start our own company once we're done with our software, so this was super interesting to me. Exactly what I wanted to know.
Would RDP not work as a substitute? Just remote into the other machine to use the software that doesn't run on your main OS?
Please consider designing a KVM after the router .
Hahaha, unlikely, but thank you for the vote of confidence :D
Two Apple macs side by side do this automagically. (Gotta be logged under same iCloud ID on both.)
Yep, that I am used to, because I constantly switch between my Mac Studio, iPad and iPhone. It's seamless and I love it.
Just RDP
You can't have Gsync with RDP
I forgot RDP is just compatible with Gstring.
@@pixaim69 We're all compatible with Gstring.
It is sometimes a Problem with the different mass of the devices. (power supply desing)
Don't get me started on LG monitors, somehow they can be a real P.I.T.A ! From 2-lane USB-C support instead of 4-lane on some monitors to flickering screens in the radio studio (changed cables, resolution, refresh rates etc) to the issues you run into with testing KVM switches :)
PRIMA O POI LA GDF VI PIGLIA TUTTI RAGA' ...
Dash, not minus.
That works too 😜
You've 100% captured the plight of enthusiasts. I just removed my dual DP1.2 KVM and dual 27" 4k monitors to use the new dell 40" Ultrawide and its built in KVM. In some cases it's better, others not so much.
Have you tried anything LevelOneTechs makes? They seem pretty enthusiastic about making KVM work properly. EDID is actually very simple, just intercept the I²C pin and attach it to your own EDID memory chip.
I favor Samsung but ASUS has some impressive monitors when it comes to price and refresh rate.
Agreed!
switching every few minutes between pc and mac. why ? isn't it better value to get a monitor with dual type c. cheaper way is to get a mouse and keyboard that can do multi device if youre okay with membrane keyboards.
I'm not okay with membrane keyboards. 😅 And as to why - I use MacOS for day to day stuff and I want to keep it that way. But I use PC for development of embedded devices (Linux) and gaming (Windows). So while the Linux is compiling, for example, I can work on other stuff on the Mac.
Not sure if you want an oled monitor if gaming isn't your primary use case Still has issues with burn in and text readability because of the subpixel layout
Burn in hasn't been an issue for years now. I have an OLED tv and it works great.
I connected one.computer via HDMI, second via Display Port and I'm using Logitech keyboard that supports 3 devices. When I want to switch to another computer, I just press a key on the keyboard and pick a dofferent onput source on the monitor (Dell display, so you can custom map two buttons on front to twp input sources). Super easy and quick and absolutely no extra cost.
for non color-grading productivity and non competitive gaming it is very convenient to use moonlight+sunshine stream for 0$ (if u have decent hardware, and u must have, we talking about 500$ kvm)
You mentioned that only the one you got supported variable refresh rate... that is/was one of the main selling points of the Lvl 1 techs KVM.... I think you may have had some wires crossed there.
I haven't found any mention of VRR on the product page of their 2-system, 2-monitor KVM switch?
@tomazzaman to quote Wendell from the forums "the kvm is real dumb, it just passes through signal. its not gsync vertified ofc but it happily passes through the signal as it should  it doesn’t even have a repeater. looks just like a cable from the point of view of the gpu."
Thanks for the detailed overview Tomaž. It was very interesting. For my budget, the price is eyewatering unfortunately. I offer the following simply as alternative. I am not arguing that it is better than a dedicated KVM. For a simple laptop+desktop configuration, where the laptop supports USB-C for power, video, and USB, I can heartily recommend a monitor with a good built-in KVM. Here's my setup: - USB-C from Linux Laptop to Monitor 1 (the monitor with the KVM) - DP from my Windows Desktop to Monitor 1 - DP daisychain from Monitor 1 to Monitor 2 (yes, each monitor has only a single video cable) - USB dongle for mouse plugged into my PC - USB dongle for keyboard also plugged into my PC - USB Microphone and USB webcam each plugged into Monitor 1 That's a remarkably small number of cables for the number of connections! I love it. I can grab the laptop and head to the patio with only a single cable disconnect. When I put my desktop to sleep, both displays, microphone, and webcam all switch to my laptop within a couple of seconds. When I want to switch manually, I reach behind and then push and tilt the mini-joystick to select the input. This is the awkward part of the exercise; awkward only because it takes a few seconds. I do however wish there was a discrete mechanical A-B slide switch instead. Switching my keyboard and mouse between USB (desktop) and Bluetooth (laptop) is a quick button on each. This is by preference. I _could_ have plugged them into the monitor instead. Then all four USB devices and both displays would switch at the same time. But sometimes I like to control the unseen computer while watching the other. Like Tomaž, I am a gamer but I am not hardcore. I make due with dual 27" at 2560x1440 at 60Hz. My displays have identical dimensions and resolution. Neither Linux nor Windows ever get them confused although once in a blue moon Windows gets the resolution of one monitor confused. In the annals of Microsoft screwups, this is about as minor as it comes and is easily corrected. All this to say, if the price of Tomaž's solution is beyond your pocketbook, you should consider a KVM Monitor and enjoy the greatly simplified cabling. Daisy-chaining is one of the greatest things about DisplayPort. For the record, my monitors are both Dell: U2722DE and P2723DE. My keyboard is a Logitech G915 and my mouse is a Logitech M720. Both have readily accessible buttons to switch.
My setup is kinda like yours but with one more stupid addition. I needed something that could do matrix switching for the displays which does not exist so I had to get 2 kvm switches and have to remember combinations of presses to make mine work
Oh wow, so there are even more convoluted setups than mine! 😅
I work for an fiber ISP in Denmark. What I don't understand is, why didn't your ISP just offer you what we in Denmark call: Black Fiber, meaning you only get the fiber, so you can use your own fiber box and router. It' just a clean fiber connection, meaning you kinda woul be your own "ISP", if you know what I mean. Not many in Denmark have it, but it is possible and is something we offer, but it is also expensive. With that said, the Danish ISP allows you to use your own router after the fiber box. We just put the fiber box in bridge mode. That would also be the cheapest option
I love weird setups. my pc is in a rack ~40m away from my desk. it took me forever and a day to find the only fiber usb extender available, which is apparently sold only by 3 companies on this planet. ahh and it costs $1.3k. ofc i could have my pc next to the desk but when you can avoid that. Raven 3124 for those of you as crazy as me
Now you're kinda tempting me to just move the PC into the basement! :D
Or use RealVNC or any other VNC program? Ah, gaming is mentioned… you need speed.
You forgot the extra option: get a USB switch (I use a UGreen USB 3.0 switch with 2 button-switchable ports for the hosts and 4 ports to devices) and 2 extra HDMI/DisplayPort cables (and maybe some adapters as needed, as my laptop has only one HDMI out and 2 mini-DisplayPort outs, so one miniDP-HDMI adapter and since my second monitor has only 1 HDMI and 1 DVI/VGA inputs, +1 HDMI-DVI adapter), then everytime you want to switch, just press the button on the USB switch and the Input buttons on both monitors... Unless any of your monitors only has one input, then you're SOL... Seems a lot faster than unplugging and re-plugging everything, and a lot less frustrating than dealing with the problems created by the KVM switch and the host OSes not keeping the previous 'display configuration' (because the KVM switch physically disconnects all screens, unless it does active switching and mirroring, and even then you'll have problems with anything out of the KVM's supported specs like me with 21:9 monitors) - and also enables you to have two screens, something that I'm not aware of any built-in-KVM-monitors being capable of 🙃
0:30 4) RDP.
Indeed get the p1 kvm
Or 4. Use a Software based KVM. Key press between computers or show both computers at same time. GSync not needed. Haven't used hardware KVM in years even though test bench has it.
What I use is just a simple 20$ USB KVM for my peripherals and have monitors on auto detect input, cheap and painless.
Perfect, if that works for you!
Maybe it would have been cheaper to build a new room with everything.
Hahaha, well you're not wrong! :D
I LOVE these nerdy videos. Must be why I watch level1 tech as well
You don't need EDID emulation with Level1 Techs' switch since it passes trough all the data, you should have chatted with Wendell before buying one, he's amazing! Level1 Techs is the only KVM I would ever even consider buying since Wendell obsessed to make it perfect.
Hello Tomaz, I had similar problems, and here is how I fixed my issues. I use a large Samsung Odyssey Ark 55" curved monitor as my main daily driver, along with four smaller 28" BenQ displays for KZread, Discord, Spotify, web pages, and similar tasks. I have three PCs connected to these via a KVM switch: my main gaming rig, my laptop, and an AOC cable connected to my rack KVM (I kind of have a data center in my living room-it’s in a separate room). I also experienced issues with Windows and my main monitor, which I later traced to Windows settings and the monitor’s crappy software. With the Samsung, I had to go into the NVIDIA control panel and manually set it to a 4K 165Hz HDR with 12-bit color depth. Windows would always default first to no HDR, 60Hz, and 10-bit color, causing the monitor to refuse to work correctly. It would display an image for one second, go black for four seconds, or turn fully green or white with approximately 5cm-spaced diagonal blue lines. This would happen about five or six times before it fully disconnected and showed no active connection.
For me, I played with nvidia control panel as well (same settings like bit depth and color space) until I got the optic cables - with them, the issue went away, luckily.
Love the timing of this post, I was literally planning out an entire thunderbolt KVM build yesterday. Guess I need to accept the headaches to come😅
Good luck and I'm sorry 😂
custom $400 KVM design incoming
Hahahah, nope. Not this time :)
1. Hdmi switcher + usb switcher would cost less than 200$ 2. Connecting mac with hdmi, windows with DP + usb switcher would cost less than 100 $ ... nah, 1000$ and bunch of hours for troubleshoothing is too much for me 😂😜
KVMs are rare in DCs today. Most are using IPMI and/or the vendor proprietary systems like iDRAC. For the rare times that fails, usually a mobile 'crash cart' with a display and keyboard is rolled up to the server and plugged in.
Hey, I love your channel. I am sorry to break it up for you - we nonlonger use KVM in data centers. Majority of modern servers have either Ilo for hp, iDrac fir Dell, BMC IPMI for supermicro, etc. which allo in parallel full diagnostic and remote console. Today there is also a Raspberry pi based pcie card which allows remote console for a plain pc. I still love your content! Greetings from Serbia
Thank you! And thanks for letting me know. I have two devices in my rack (the router and the server), both of which have ipmi :)
@@tomazzamanexactly ;)
I just use ssh