Ubuntu freezes after I run video on the full screen on Chrome 40

After the last update, when I run video on a full screen(youtube, facebook video...) the cursor disappears, and the video works well. But when I close the video(with esc) the whole system freezes and I use RESUIB command to restart it. This happened after last chrome update. I use ubuntu 14.10, intel graphics 4000 and stock drivers, because there are no intel drivers for 14.10 yet. This happens aproximatily every second time I run full screen. Any ideas? Thanks!

Just disable Override software rendering list in chrome://flags solves the problem for me!

Disabling "Hardware Acceleration" (Settings -> search -> hardware) and restarting chrome solves the problem for now. The problem exists also when you press F11 (full screen).