Sometimes, while I'm using Debian 8 on my macbook air 13" from 2011 with Debian 8, it freezes. I can move the mouse but it's laggy, and I can switch to other terminals. Even the clock freezes. When this error occurs, and I switch to another terminal by pressing Control Alt F1 for example, I can see this in the login screen:
http://imgur.com/a/8sYnD
I think it's related to the intel graphics card, but I don't know what to do. Sometimes if I wait for like, 1 minute, the gnome starts working again, sometimes I have to restart.
I've searched about this on the internet but I couldn't find a fix, and I've not found this particular error, just boot errors with this phrase. Does somebody know what's happening? Today it occured like 5 times while I was watching videos, then the browser closed the tab the video was running and it worked again, but sometimes it occur even if the browser isn't open.
Does this has something to do with intel drivers?