Graphics: Known Issues
- Permission errors, or inability to start X when using the DRM kernel modules?
Make sure your user is a member of the video group, otherwise you will not have access to /dev/drm/ devices:
# pw groupmod video -m <youruser>
Xorg -configure crashes with a "Segmentation fault":
Do not use Xorg -configure anymore: it is recommended to let Xorg auto-configure itself.
If you need to override part of the configuration, create a config file under /usr/local/etc/X11/xorg.conf.d/ containing only the relevant section.
There are reports that users on i386 hardware have problems using the drm-kmod package.
A workaround for this is to disable PAE in /boot/loader.conf: hw.above4g_allow=0
Support for aarch64 and powerpc* are works-in-progress.