Official support for Ubuntu 12.10 "Quantal Quetzal" has ended.
** Changed in: alsa-driver (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1091762
Title:
[, ATI
Ubuntu 14.04 Trusty Tahr is based on the 3.13 kernel. The
radeon.audio=1 kernel boot option is no longer necessary with this
kernel. Instead, HDMI audio on ATI/AMD Radeon cards can be enabled and
disabled on the fly by typing the following in a terminal window:
xrandr --output HDMI-0 --set audio
On ATI Radeon cards/chips, HDMI audio has been disabled by the upstream
kernel developers as it causes blank screens on a lot of systems.
You can re-enable HDMI audio by adding radeon.audio=1 to your GRUB
boot options. See
