1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Revised HDMI Audio Patch For RadeonHD Driver

AMD

Published on 25 October 2008 09:16 AM EDT
Written by Michael Larabel in AMD
11 Comments

Christian K├Ânig has released his latest HDMI audio patch on the RadeonHD mailing list. With the ATI R600 GPUs and later having an integrated APU (Audio Processing Unit), when using an HDMI connector it's possible to use your Radeon graphics card for sound too. There's been patches in ALSA for the sound support, but additional code is needed within the open-source X.Org drivers too. At this time neither the xf86-video-ati or xf86-video-radeonhd have support for the integrated audio, but on the RadeonHD side there have been these patches maintained by Christian.

Christian's latest RadeonHD HDMI audio patch is over 60KB in size and is over 2,000 lines. As AMD hasn't released any documentation covering the registers for HDMI audio, he had reverse-engineered them. This most recent patch has a few fixes and enabled HDMI audio by default. The audio support though can be disabled from the xorg.conf.

This HDMI audio support has been tested and verified on the RV620, RV630, RV635, RV770, RS780, and M86 GPUs. Ideally we will see this patch merged into the xf86-video-radeonhd driver in the near future.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
  2. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  3. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
  4. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
Latest Linux News
  1. F2FS Tools Gain FSCK Support
  2. FreeBSD 10.1 Has The New VT Driver, Hardware Improvements
  3. AntiMicro 2.6 Yields Greater Compatibility For Gamepads On Linux
  4. OpenGL 3.3 / GLSL 3.30 Lands For Intel Sandy Bridge On Mesa
  5. AMD's RadeonSI Gallium3D Driver Sees Some Improvements
  6. Mesa 10.3 Released With The Latest Open-Source GPU Driver Improvements
  7. GNOME 3.13.92 Officially Released
  8. Wine 1.7.27 Is Still Working Towards Direct2D Support
  9. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  10. Tropico 5 Launches On Steam For Linux
Latest Forum Discussions
  1. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  2. SSD seems slow
  3. R. Tyler restarts work on FreeBSD launchd port, openlaunchd
  4. Can Linux kill a motherboard?
  5. Stop grabbing my keyboard :(
  6. Glamor now enabled in Debian radeonsi
  7. New stress testing utility for GPU's
  8. New Group Calls For Boycotting Systemd