Thank you so much for the information!
Intel graphics support is way behind Linux's, and probably behind OpenBSD for that matter.
I am actually much more familiar with OpenBSD than I am with FreeBSD, and I have no problem running it as a guest under virtualization in Fedora Linux, but OpenBSD has no support for hosting virtual machines. (They say it's insecure, and who knows? They may be right.)
When I tried to install OpenBSD 6.0 natively on this laptop, the text mode for the boot kernel messages was overdriving the monitor with an incorrect refresh rate, so I gave up on that.
I have never used NetBSD, so I know nothing in particular about that operating system. Theo DeRaadt was not impressed with their attitude toward security, which is the very reason he forked it and founded OpenBSD with such a strong emphasis on security. I cannot say I am impressed either, going by what they say:
http://www.netbsd.org/support/security/
NetBSD Security said:
... The NetBSD source tree contains several millions of lines of code written by many different people and organizations with varying styles and quality. Given the rate of change and the amount of human resources available, it is not possible to manually verify every line of code for correctness. ...
... Several security features are available in NetBSD, ...
... Because high security should not come at the cost of performance and efficiency, not all of these features are enabled by default. ...
In a way this is simply the cold hard truth for any mainstream operating system these days, but the whole attitude is wrong: "This 'is' the way it is and we cannot change."
No, that does not get a pass from me. My attitude is more like this:
#1.) Correctness is a prerequisite for security. Get it right and make sure it stays right.
#2.) Security is not something that is "available." It is something that is
not available to one's adversaries.
#3.) Security at the cost of performance and efficiency is a false dichotomy, or rather, a false trade-off. You cannot cut corners in the name of speed and efficiency and claim you are doing it right.