Radeon Video: Difference between revisions

Latest revision as of 13:14, 8 October 2023

The following instructions are for modern AMD GPU chipsets covered by the radeon and amdgpu drivers.

Firmware

For Vega and later, the linux-firmware-amdgpu package is required. Otherwise, the linux-firmware-radeon should be used.

See the relevant section on the Gentoo Wiki for a more granular list of product names and microarchitecture names.

Kernel Modesetting (KMS)

To enable KMS at boot:

Add the radeon or amdgpu and fbcon modules to /etc/modules:
$ echo radeon >> /etc/modules
$ echo fbcon >> /etc/modules
or
$ echo amdgpu >> /etc/modules
$ echo fbcon >> /etc/modules
Install mkinitfs:
apk add mkinitfs
Enable the kms feature in the mkinitfs configuration by adding it to the features variable, e.g.,
Contents of /etc/mkinitfs/mkinitfs.conf
features="keymap cryptsetup kms ata base ide scsi usb virtio ext4"
Run mkinitfs.
Reboot to test the configuration.

Wayland

Install the following packages as needed:

mesa-dri-gallium: necessary Mesa drivers.
mesa-va-gallium: VA-API drivers, for hardware accelerated video encoding and decoding

If driver auto-selection does not work, e.g. no mouse cursor under Sway, manual driver selection might be needed:

export MESA_LOADER_DRIVER_OVERRIDE=r300: for AMD's Radeon R300, R400, and R500 GPUs.
export MESA_LOADER_DRIVER_OVERRIDE=r600: for AMD's Radeon R600 GPUs up to Northern Islands. Officially supported by AMD.
export MESA_LOADER_DRIVER_OVERRIDE=radeonsi: for AMD's Southern Island GPUs and later. Officially supported by AMD.

For VA-API:

export LIBVA_DRIVER_NAME=r600
export LIBVA_DRIVER_NAME=radeonsi

Xorg

Install either the Free Software driver xf86-video-ati or the proprietary amdgpu firmware linux-firmware-amdgpu.

modprobe fbcon might be needed to avoid black screen when leaving Xorg.

@@ Line 1: / Line 1: @@
 {{TOC right}}
-The following instructions are for modern AMD GPU chipsets covered by the radeon driver.
+The following instructions are for modern AMD GPU chipsets covered by the <code>radeon</code> and <code>amdgpu</code> drivers.
-== Setup Xorg/udev ==
+== Firmware ==
-# Run the <code>[[Alpine setup scripts#setup-xorg-base|setup-xorg-base]]</code> script.
+For [https://en.wikipedia.org/wiki/List%20of%20AMD%20graphics%20processing%20units Vega and later], the {{Pkg|linux-firmware-amdgpu}} package is required. Otherwise, the {{Pkg|linux-firmware-radeon}} should be used.
-# Install the Xorg AMD video drivers: {{Cmd|# apk add xf86-video-ati}}
-# Install the AMD firmware files: {{Cmd|# apk add linux-firmware-amdgpu}}
+See [https://wiki.gentoo.org/wiki/AMDGPU the relevant section on the Gentoo Wiki] for a more granular list of product names and microarchitecture names.
-# For newer devices, use: {{Cmd|# apk add xf86-video-amdgpu}}
-# Enable [[#Kernel Modesetting (KMS)]]. Specifically, the <code>fbcon</code> module is necessary, or leaving Xorg (via <code>Ctrl+Alt+F1</code> or quitting) will result in a black screen until the machine is power cycled. If you have already launch Xorg and don't want to experience this effect, you can <code>modprobe fbcon</code> while Xorg is running.
 == Kernel Modesetting (KMS) ==
 To enable [[KMS]] at boot:
 # Add the <code>radeon</code> or <code>amdgpu</code> and <code>fbcon</code> modules to {{Path|/etc/modules}}: {{Cmd|$ echo radeon >> /etc/modules<br />$ echo fbcon >> /etc/modules}} or {{Cmd|$ echo amdgpu >> /etc/modules<br />$ echo fbcon >> /etc/modules}}
 # Install <code>mkinitfs</code>: {{Cmd|apk add mkinitfs}}
@@ Line 20: / Line 19: @@
 # Reboot to test the configuration.
-== Troubleshooting ==
+== Wayland ==
-=== Fixing MESA-LOADER errors===
-{{Obsolete|Alpine no longer ships with the ''linux-hardened'' kernel}}
+Install the following packages as needed:
+* {{Pkg|mesa-dri-gallium}}: '''necessary''' Mesa drivers.
+* {{Pkg|mesa-va-gallium}}: VA-API drivers, for hardware accelerated video encoding and decoding
+If driver auto-selection does not work, e.g. no mouse cursor under Sway, manual driver selection might be needed:
+* <code>export MESA_LOADER_DRIVER_OVERRIDE=r300</code>: for AMD's Radeon R300, R400, and R500 GPUs.
+* <code>export MESA_LOADER_DRIVER_OVERRIDE=r600</code>: for AMD's Radeon R600 GPUs up to Northern Islands. Officially supported by AMD.
+* <code>export MESA_LOADER_DRIVER_OVERRIDE=radeonsi</code>: for AMD's Southern Island GPUs and later. Officially supported by AMD.
-The ''linux-hardened'' kernel package places restrictions on sysfs and will prevent the MESA-LOADER from working as a normal user even if added to the video group.
+For VA-API:
+* <code>export LIBVA_DRIVER_NAME=r600</code>
+* <code>export LIBVA_DRIVER_NAME=radeonsi</code>
-See https://bugs.alpinelinux.org/issues/7265
+== Xorg ==
-Either switch to the ''linux-vanilla'' package or apply the '''grsec_sysfs_restrict=0''' kernel parameter to allow normal users to access hardware acceleration on the desktop.
+Install either the Free Software driver {{Pkg|xf86-video-ati}} or the proprietary amdgpu firmware {{Pkg|linux-firmware-amdgpu}}.
-=== Fixing a frozen X11 when invoking startx ===
+<code>modprobe fbcon</code> might be needed to avoid black screen when leaving Xorg.
-You may need to set the AccelMethod to exa not glamor which is the default for the driver.
+== See also ==
-{{cat|/etc/X11/xorg.conf|
+* [https://wiki.archlinux.org/title/AMDGPU AMDGPU - ArchWiki]
-  Section "Device"
+* [https://wiki.archlinux.org/title/ATI ATI - ArchWiki]
-        Option      "AccelMethod"        	"exa"
-	Identifier  "Card0"
-	Driver      "radeon"
-	BusID       "PCI:1:0:0"
-  EndSection}}
-= =
-* [https://wiki.archlinux.org/index.php/ATI archlinux.org / ATI]
-* [https://wiki.archlinux.org/index.php/Xorg archlinux.org / Xorg]
 [[Category:Drivers]]