AMDGPU(4)

NAME
amdgpu - Driver for newer AMD graphics chipsets

DESCRIPTION
The amdgpu driver provides support for the newer AMD graphics chips, beginning with the Arctic Islands/Polaris family (Radeon RX 400 series). Please refer to the Loader Tunables section in syscons(4) for more information about how to make the console work with amdgpu.

In order to use the driver one needs to install the sysutils/devfw-amdgpu package available in dports(7).

EXAMPLES

    Section "Device"
            Identifier "Screen0"
            Driver "modesetting"
            Option "kmsdev" "/dev/dri/card0"
            Option "AccelMethod" "None"
    EndSection

LOADER TUNABLES
Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

drm.amdgpu.cik_support
    Enable/Disable support for CIK GPU generation (KAVERI, BONAIRE, HAWAII, KABINI, and MULLINS). These GPUs are handled by the radeon(4) driver by default. 1 = enable, 0 = disable (default)

SEE ALSO
drm(4), radeon(4) syscons(4)

HISTORY
The amdgpu driver was first available for Linux.

CAVEATS
Currently, only the modesetting driver is supported for Xorg(1).

When using the optional support for CIK GPUs, it may be necessary to use the drm.video.<connector> tunable documented in the LOADER TUNABLES section in drm(4) to force a console framebuffer in 16bpp or 32bpp mode. This is due to amdgpu sometimes defaulting to an 8bpp framebuffer console which is currently not supported in syscons(4).