Video signal would get lost and flicker on my USB ...
587778
Video signal would get lost and flicker on my USB displaylink.  Not sure why, went back to using the usb 3.0 cord direct rather than adapting it with the 90 degree extension cable.
373241
I connected this to a Windows 7 HP Laptop , and it just kept installing the driver.  The screen constantly flashed.
I connected to a Windows 7 Asus laptop and it worked perfectly.
Connected using both the VGA and the USB.  Also tried just the VGA and just the USB, only works if both are connected.
I came back to Amazon to try and look for support for this, but the item is no longer listed.  When I click on the link from my orders it takes me to a different product that does not support VGA>to>HDMI.  I am hoping the seller will contact me to help me fix the issue.
This is the product:  LinkS 6Ft VGA +USB to HDMI cable with Audio
2438381
When I use this cable to connect either my DIRECTV receiver, and/or my BluRay player directly to my Samsung television, it works fine.

However, that was not my intended use. I have an HDMI Home Theatre Receiver between the DIRECTV/BluRay and the TV. With an HDMI receiver in the configuration, The TV video and audio would blink for ~2 seconds, and it would do this randomly. This is VERY irritating!!

I believe the HDMI handshake signal was getting dropped, causing the blinking.

I fixed the problem by upgrading to an expensive HDMI cable from MONSTER.
4115030
Bought this to connect three monitors to one source.... but it does ghost.. my lengths weren't more than 10 feet maximum each..... since bought another video splitter for even less and that causes no ghosting.... so sorry, I can't recommend this, unless a bit of ghosting is ok for you.
rsp
1307835
I stopped using this product - due to video signal disconnect / degradation - when connecting to TV via this product.
2426677
I have a legacy dvd player with component video output and a projector with an RGB/component video input.  When
I plugged this cable into the appropriate outputs and input, the projector displayed a message that it could find no
signal.

I could not get this cable to pass a signal from my dvd player to my projector.
3698847
The video output of this extender was unstable. In case the problem was with my equipment, I tried using different video connections for the transmitter (two different HDMI cameras as well as the HDMI output from a laptop), and also tried connecting different monitors to the receiver. I also tried different cables. Initially I was using a 100 foot CAT 6 cable to connect the transmitter and receiver, but switched to a 50 foot CAT 5. The result was always the same: an unstable signal that flickered and shifted. I sent it back for a refund.
2416988
I tried the adapter but it didn't work in my 2.0 USB. All I got was a very slow response and a whole lot of buffering. I returned it. I'll probably have to go the route of getting an HDMI card for my PC.
547545
Using on a late-2016 MacBook Pro w/ Touchbar. I downloaded the ethernet drivers and it worked great. I plugged in a hard drive and it worked great. I plugged in a monitor on the VGA port and it worked great...

Except when I plug something into the USB port while using the VGA port, the video stops working. I just stops sending signal to the monitor. This means I can't effectively use it as a multi-port adapter like I'd thought I would.

BTW: Thanks, Apple, for making all this dongle crap necessary!
3560810
In between the video, it would end up dropping signal - you would see white noise on the screen. And the only remedy was to disconnect/reconnect the cable. Totally killed the viewing experience.
608817
I ordered this so that I could switch between my blu ray player and my computer on my computer monitor (Asus VE276Q). Most of the time it works great, switching when I power on one or the other. But then you have these incidents where the stupid thing flickers out as if the hdmi was unplugged.. All of this happens with me not even touching the unit. I'm not sure as to the reasoning it blacks out, I just know that when I'm in the middle of something on my computer, I want to break the damn thing.
1679099
It doesn't seem to work.  I checked everything and my TV says no signal.  I have it plugged ito the wall with a converter rther than using a powered USB on the back of the TV.  I'll probably return it
3268844
I really wanted this to work, as it would be a nice solution. Unfortunately, outputted video signal is unusable.  For example, Roku 3 video breaks up every few seconds, plus random flashes of white.
Tried with power supply, but did not fix.
Got to look for better unit.
1916469
The cable that came with mine was bad. After talking to tech support, I tried a spare USB mini cable I had. IT worked but the desired result would not be acceptable for daily viewing and use. Their support personnel suggested I would not be satisfied even if they replaced the whole unit. They indicated that this was typical of the virtual devices. I question this as I have a USB monitor that I am using right now to type this review, but it is what it is. I appreciate their honesty and willingness to try and help me make it work. Props to support, but the product is just not suitable for anything but the lightest viewing and least graphic intensive use.
100164
There seems to be some sort of connection issue between the player and my TV that causes constant flickering and noise on the TV when watching a blu ray disc.  I'm not sure how to describe it, but the while watching 2 different movies, the TV picture flickered every so often and a loud noise was going through the speakers, almost like it had a bad HDMI connection, but I was using a brand new HDMI cable that has worked fine on other devices (btw, it does not come with an HDMI cable either).  On the 1st movie, I thought it might be the disc since I did rent it from RedBox.  However, the 2nd rental did the same thing, and the blu-ray player continued to have the issue with no disc at all.  Sending it back.

(EDIT) After playing around with the ports, I did end up getting this device to work.  I suspect some interference was causing the issue as I have a cloud server near the side port.
2006573
I had another HDMI switch that was causing me headaches literally by occasionally flashing, blinking, and blacking out the screen. Switching to short, high performance HDMI cables did not help. I narrowed down the problem to the switch by direct connecting the cable to the screen but that was only a temporary solution. My problem as I saw it was that I was putting 1900x1200 resolution signal through the switch which only met the requirements for 1920x1080 resolution.

Specifications on HDMI switches are all over the map and there's really no way to tell if the specs are legit or not. Cable Matters gave enough info on their switch that I felt somewhat confident they meant what their specs said. It specifically supports 1920x1280 up to 4K resolution (2840x2160), in addition to HDCP. On top of that, it supposedly amplifies the signal by powering it with a USB connection (some other switches do that too, but it's not clear from their specs or their prices). In short, I bought it, connected it, and all the problems disappeared. Hope it stays that way!
760339
Use with my iMac to convert the DP out to HDMI  to get it into a HDMI KVM switch.
Every once in a while I get unexplained flicker, like once or twice a month.

Even better was I got it on a Lightning Deal for $7 so all good