We have a compact Dell Vostro connected to a Sony LCD panel via a HDMI cable.
The PC seems to randomly freeze and totally lock up - with a hard reboot being the only option available to recover it. It also seems to loose the signal on the screen, again, a hard reboot required.
* The PC's not too hot (it's on top of a cupboard in a large cool meeting room)
* I've run memtest86 all weekend and it passed with no hitches.
* Event viewer doesn't give any additional clues
So, does anyone have any ideas? - It will look pretty crap if someone's on a call sharing their screen and the PC just locks up :/
We don't have any other machines to try with HDMI ports, I could try using a DVI-VGA connector and connecting to the panel via vga, not sure what that would prove.