I have a laptop with HD 4000 Graphics.
I installed Red Hat Enterprise Linux 6 and when I try to logout or switch user or go to virtual console using (ctrl + alt + 2), I get a black screen and nothing moves from then on. Due to this I have to hard reboot the system.
We suggest checking directly with your Linux* distributor as the driver would be provided directly from them.
You may also check for troubleshooting at:
Community | Linux Graphics
For further information you can refer to this article;
Graphics | Drivers for Linux*
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