StarTech.com 4 Port Usb Displayport Kvm Switch Noir

I've been using this KVM switch for 2-1/2 years now. My main monitor is a Dell S3422DWG which has a native resolution of 3440x1440. I normally try to run at a refresh rate of 60Hz, but this will sometimes cause the display to show flickering pixels come in and out (looks like digital snow). This happens intermittently, with a variety of different DisplayPort 1.2 cables. It most often happens when switching between different inputs. The higher the refresh rate, the more pixel snow I see. However, 3440x1440 @ 60Hz is well within the bandwidth of this KVM, so it's unfortunate that I see this problem. Sometimes the problem gets so bad that the monitor appears to reset itself, or try connecting again, and the image gets cleaerer. Perhaps this works better for 4K monitors, but be aware of this potential issue if using a 21:9 monitor such as mine. I've tried many cheaper KVMs to push the same resolution and this one was definitely the best of the bunch.

This product seems like an ideal solution, but getting true 4k 60 Hz is problematic. Even using DP1.2 cables from Startech has failed to give 60 Hz. The only way I was able to get 60 Hz was to bypass the KVM switch (all cables work with a direct connection to my monitor), which seems to indicate that the KVM does something with the video signal that I have never been able to resolve. This may not be a problem with your particular monitor, but it is far from a universal device.

Using with a desktop PC, a laptop PC, and an MS Surface Pro. Monitor switch works perfectly even with the Surface Pro using an external 1920x1200 monitor. Seems to work with all USB devices so far, even an external soundcard. It is worth noting that using this device uncovered a firmware fault on the desktop graphics card which required a firmware update (not just drivers) from NVIDIA to rectify successful detection of the DisplayPort monitor, so it is worth checking that if you are having issues. Not the cheapest piece of equipment on the market but has done a great job for me so far and stops me from continuously breaking cables and cracking my head on the underside of my desk recabling everything all the time...

I am using this to switch 1 PC and 3 laptops onto a DP 4K display. I was having problems with a graphics card on the PC at 60Hz and now it works perfectly with the switch in-between - this switch FIXED the problem. Only complaint I have us that the mouse is sometimes "lost" when I switch but this may be a sw/problem in Windows 10. This device is a bit pricey.

I have 2 computers on Ubuntu, when I start the computer I have my screen, but if I switch to the second one and I switch back to the first, I don't have the screen anymore because the X server crash because the KVM doesn't respond to the displayport during switch... The KVM does not respect the display port standards...