Red Line in Display

[zilion]

Hello,
I have noted that in certain times appears this line and I have no idea what this can be. The image in attached. (zoomed).
NOTE: The line disappears when I click something like changing tabs.

 

[wblock@]

We need just a bit more information. Which version of FreeBSD? On exactly which hardware, particularly the graphics card? I see a red background, not lines exactly. Does it always do this when you do a specific thing, or is it somewhat random? If you can trigger it every time, how do you do that?

 

[zilion]

Right..

Version: 10.3-Stable (also occurred in release version)
Graphics Card: Intel HD Graphics 2000

It happens randomly, not imagine the cause or why..

 

[SirDice]

It's either the cable that's faulty, I've seen similar things when the VGA connector is only half in. Or there's something wrong with the display itself.

 

[zilion]

Now Testing in 11-Current, It's behaving normally.