UbuntuHelp:RadeonHD

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https://help.ubuntu.com/community/RadeonHD

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Introduction

This document explains how to build and use the open-source "radeonhd" driver on Ubuntu (for pre-built packages see the PPA link at the end of this guide). This shouldn't be necessary... unless you're having problems with the open-source "ati/radeon" driver that comes pre-installed with Ubuntu. If you were looking for instructions on installing the proprietary ATI Catalyst/fglrx Linux drivers, see: http://wiki.cchtml.com/index.php/Ubuntu_Jaunty_Installation_Guide The radeonhd driver, or xf86-video-radeonhd is an X.org video driver for R500 and newer ATI graphics devices. It is being developed by Novell/SuSE for AMD, with the free documentation provided by AMD. At the time of this writing, the radeonhd driver offers accelerated 2D/3D/Xv for R5x0 (X1xxx cards & 690G IGP) and accelerated 2D/Xv support for R6x0/R7x0 (Radeon HD series). 3D acceleration for RadeonHD cards is under development at the time of this writing. You can keep track of when acceleration and other features are supported here: http://www.x.org/wiki/RadeonFeature

Preparation

Previous or current installations of ATI's proprietary Catalyst/fglrx drivers are known to interfere with the installation of the open-source drivers. If you have installed proprietary drivers downloaded from ATI/AMD's website:

sudo sh /usr/share/ati/fglrx-uninstall.sh

If you've installed the proprietary drivers through Ubuntu (i.e. Synaptic or Jockey/Restricted Hardware Drivers):

sudo apt-get purge xorg-driver-fglrx fglrx-amdcccle fglrx-kernel-source xorg-driver-fglrx-dev

To make sure you have the correct version of libGL.so and libglx.so:

sudo apt-get --reinstall install libgl1-mesa-glx xserver-xorg-core

For more information on this topic, see: https://wiki.ubuntu.com/X/Troubleshooting/FglrxInteferesWithRadeonDriver

Prerequisite Packages

The following command will install all the packages needed:

sudo apt-get build-dep xserver-xorg-video-radeonhd

Building radeonhd

Note: Make sure you are connected to the internet when running git commands

cd ~/
git clone git://anongit.freedesktop.org/git/xorg/driver/xf86-video-radeonhd
cd xf86-video-radeonhd
./autogen.sh --prefix=/usr
make
sudo make install

Updating radeonhd

Check the following link to see if the driver has been updated since you've installed it: http://cgit.freedesktop.org/xorg/driver/xf86-video-radeonhd/ If so, you can pull the updates and recompile the driver to update it:

cd ~/xf86-video-radeonhd
git pull
make clean
./autogen.sh --prefix=/usr
make
sudo make install

Configuration

xorg.conf Basics

Open your xorg.conf for editing in any text editor (gedit is used in this example):

gksu gedit /etc/X11/xorg.conf

Now change/add the Driver line in the Device section.

Section "Device"
	...	#Other directives here
	Driver   "radeonhd"
	Option   "DRI" "on"
EndSection

Compiz

Note: Compiz requires 3D hardware acceleration, so it will only work for Radeon X1xxx and 690G-based graphics units at the time of this writing. Add radeonhd to the driver whitelist for your user:

mkdir -p $HOME/.config/compiz
echo 'WHITELIST="$WHITELIST radeonhd"' >> $HOME/.config/compiz/compiz-manager

This step will be unnecessary in Ubuntu 9.10 and later (https://bugs.launchpad.net/bugs/399577)

HDMI Audio

By default, HDMI audio is disabled. In the Device section of your xorg.conf, you'll need to add the following lines:

	Option "Audio" "true"
	Option "HDMI" "all"

To test this, figure out the card and device number of your HDMI device and send a sound there:

aplay -l
aplay -D plughw:<CARD NUMBER>,<DEVICE NUMBER> <PATH TO SOME SOUND FILE>

For example, if aplay -l returns "card 1: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI]", then:

aplay -D plughw:1,3 /usr/share/gnome-power-manager/gpm-critical-power.wav

Further configuration of ALSA and Pulse``Audio may be required, but that's outside the scope of this document.

Power Management

The GPU should automatically drop to low-power mode when the video signal is disabled (i.e. when the monitor turns itself off using DPMS after a specified amount of idle time). You can check/change your DPMS settings on-the-fly with the xset command and you can statically set the appropriate options in xorg.conf. Please read the appropriate man pages (xset and xorg.conf) for more information on that topic. At this time, full dynamic control of clocks and voltages (i.e. ATI Power``Play) is not implemented in the open-source drivers. However, one can force the GPU to low-power mode at all times by adding the following line in the Device section of xorg.conf:

	Option "ForceLowPowerMode" "true"

Note that this may decrease performance under GPU load.

Diagnostic Commands

Radeon X1xxx and RS6x0

glxinfo | grep "renderer string"

This command should return a line that looks like "OpenGL renderer string: Mesa DRI R300..." If it returns "software rasterizing" then it would be a good idea to have an expert look through your /var/log/Xorg.0.log file to see what's wrong.

RadeonHD

Look through your /var/log/Xorg.0.log and verify EXA and direct rendering are working. AIGLX will probably report that it is using software rasterizing. This is normal for RadeonHD cards at this time.

Pre-built .deb packages

Unofficial test packages updated from git can be found in the PPA https://launchpad.net/~tormodvolden/+archive

Additional Help

The developers of this driver often respond to technical support requests at: http://www.phoronix.com/forums/forumdisplay.php?f=43 For IRC, the developers can be found at #radeonhd on freenode.net

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