NO SOUND THROUGH HDMI (Radeon HD 4200) ON UBUNTU 11.10

[alex2399]

Also had a problem with digital output (SP/DIF), no sound...The solution was to unmute. Not from the GUI but from the terminal with

alsamixer

Hope it helps, you may need to play with the settings.

[pearce_jj]

Just found this too, also ATI chipset (Zotac ZBox HD-AD01). Sound was a pain under 10, video performance was very poor under 11.04 (but sound worked) and sound doesn't seem to work with 11.10 (although it's all detected okay).

[Samos123]

I am having the same problem with ATI Radeon 4250 HD.. in 11.04 my sound worked perfectly but now I can not get sound from my laptop speakers, headset works fine though..

any suggestions?

[sarin_cv]

I'm also facing this issue with 11.10 and Radeon 3450...there is no sound and video playback is too fast....Didn't have this issue with 11.04..

[sarin_cv]

This solved my issue...

http://askubuntu.com/questions/67113...-with-no-sound

[Samos123]

This solved my issue...

http://askubuntu.com/questions/67113...-with-no-sound

Didn't solve the problem of my laptop speakers sound not working, in 11.04 it worked perfectly. My headset is working though.

[sarin_cv]

I had this issue with opensuse once...installed alsamixer and played with the settings....some control was in mute...

[Samos123]

I had this issue with opensuse once...installed alsamixer and played with the settings....some control was in mute...

Yea I also checked it with alsamixer, but its not on MM so seems fine to me. Thanks for tip

[jae18708]

Had this issue in Mint Debian.

In a terminal try: gksudo gedit /etc/default/grub

Add radeon.audio=1 to the line that starts with GRUB_CMDLINE_LINUX_DEFAULT

Mine looks like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.audio=1"

[Ubsat]

After installing ATI proprietary FGLRX drivers (shown in the list of additional drivers app), HDMI sound is working in 11.10!!