display acts as if unplugged/plugged back from time to time

[avram.florichescu]

Hello,

I tried Plugable USB to HDMI converter and i-tec usb dual display adapter.
Both behave the same on my system.

When I install the Display link drivers at some point is says .... display can flash while this is running... and it does that 2 times.
First time my displays go black and come again and then they go black a second time but this time they stay black. I've tried waiting like over 5 minutes but nothing happens. My displays remain black.
At this point I need to do a shut down of my PC from the power button.
It takes like 1 minute but I shuts down normally.

When the PC starts, everything works fine for some time.
Depending on how much I actually use the usb display my problem occurs faster or after a logger time.

After I use the display for a while it just freeze the image. It stays frozen for 2 -3 seconds than my PC behaves as if I disconnected the USB display.
It only shows my 2 other displays ( connected to the video card).
After another 30s - 1 minute the PC behaves as if the usb display is plugged again and everything is working perfectly.

Both this events are 100% reproducible.
I've tried the latest stable drivers (7.6) from Display Link and also the latest beta 7.7 beta1.
Same thing with all.

My Pc config:
win 8.1 pro eng latest updates
CPU i5 secon gen with integrated intel 300 HD video card ( on the CPU)
32 GB ram ddr3.
I have 2 monitors connected via VGA and HDMI directly to my video card.

I have also added also the logs generated by the Display Link support tool with advanced display link debug info ON.

The logs start before my display freezes and end after some time it recovers.

I will also add some logs for the installer later.

Thank you!
Avram