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Old 23rd February 2014
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Default xf86(4) Aperture driver can be disabled for KMS video

Today, the OpenBSD Journal reports:
In OpenBSD-current, after this commit users of Intel and ATI Radeon graphics which support kernel mode setting (almost all of them) can set machdep.allowaperture back to 0 in the /etc/sysctl.conf configuration and still run the X server.

This means that the X server requires no special privilege to access kernel memory or I/O devices directly, and, thanks to the privilege separation code, that most of the code in the X server will also not run as root.
This change is one of the last significant developments that will be included in OpenBSD 5.5.
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