2011 mini--screen flicker with TB and HMDI

[FlotationDevice]

On the rare occasions when I have both a TB display and an HDMI monitor, I have noticed that the TB will flicker momentarily (1 to 2x per hour).

This never happens with just the TB display, and the flicker never touches the HDMI monitor.

This is not a bother for me, but have others experienced it?

For reference using a Mini 2011 server with 16 gigs (so 512meg DRAM) on Lion Server 10.7.5.

 

[cocacolakid]

I occasionally have screen flicker on my 2011 mini server, same 16gb of ram, running Mountain Lion. It seems to only happen when I visit a predominantly all-white web page, like Mac of all Trades individual Mac listings. For some reason it flickers on those pages but does not flicker on the main Mac of all Trades pages, but it does that consistently on that website. I'm running video through HDMI to a HDTV as the monitor. That's the only website I've noticed it happening with.