So I have Ubuntu 15.04 installed on an external hard drive (Via USB 3.0) and is running on my laptop right now. I'm wanting to play Minecraft, and when the game is running, I have a really nasty graphics flicker every so often, and I can't seem to correct it. I can't seem to get any Intel drivers for it, and I'm running this on an Acer Aspire V5, having an Intel i3 and 8GB RAM. Has anyone here had graphic flicker in Minecraft, and have they managed to fix it? I could just boot into Windows to fix this, but I'd like to have it working on Linux as well for when I am on here and people want me to join the many servers I play on.