[SOLVED] - FC16 radeon HDMI sound

[zippy451]

Currently switching from Ubuntu 8.04 to FC16 and one of my many issues was no sound for ATI RS880 HDMI (4200) using default xorg radeon driver. After MUCH googling and not really finding anything useful I finally read EVERY word at www.x.org/wiki/RadeonFeature and noticed a small little footnote saying to add "radeon.audio=1" to the kernel boot parameters. That worked!

Here's the steps -

1. Test first by adding radeon.audio=1 to /boot/grub2/grub.cfg. Here is what mine looks like:
   linux /vmlinuz-3.1.2-1.fc16.x86_64 root=/dev/mapper/vg_srv1-fedora rord.lvm.lv=vg_srv1/swap rd.md=0 rd.dm=0 KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.lvm.lv=vg_srv1/fedora rd.luks=0 LANG=en_US.UTF-8 radeon.audio=1
2. Reboot and validate sound. Change the sound preferences to the HDMI output and the use the "test speakers" button under the "Hardware" tab. If you hear a female voice you are good.
3. Now make it permanent by appending radeon.audio=1 to the GRUB_CMDLINE_LINUX variable in /etc/default/grub.

Now on to figuring out the 20 other issues I have between Ubuntu and Fedora

EDIT: This has caused a green hue to appear when linux puts the TV to sleep or I switch from a different input like my satellite receiver. I have searched and it appears that this was a bugzilla but was fixed. Not for me. It gets reset if I power off the TV but that is not a solution. I have been unsuccessful at using xset to diable the screen saver or any other "screen saver" disable trick found on google. This is such a stupid thing but enough of a PITA that I'm going to try Ubuntu 11.10 to see if the issues are there as well. Need my HTPC back to normal.

[madcat_]

This solved it for me too. Thanks!

But I added radeon.audio=1 to the GRUB_CMDLINE_LINUX variable in /etc/default/grub , but it doesn't show in the command line in grub when I reboot, so I still have to add it each time. Is there something else that needs to be done to make it stay after a reboot?

---------- Post added at 11:18 PM ---------- Previous post was at 10:01 PM ----------

Looks like I solved it ... Running:

cd /boot/grub2/
mv grub.cfg grub.cfg.bak
grub2-mkconfig > grub.cfg

Made the radeon.audio setting stick.

[Cryowax]

THANK YOU VERY MUCH!!!!!!!!!!!!!!!!

I spent hours with this damn problem! I was already planning to send fedora to hell - until I've found your solution.
Thank you!!!

I can't understand why this adjustment isn't set by default....

[vaskodd]

Thank you so much!!! You saved my day
I was just gonna give it up on HDMI sound, couse I've been racking my brains for hours without success and finally i found your post.
radeon.audio=1 works

P.S. ATI Radeon 5730
3.5.2-1.fc17.x86_64