*** This bug is a duplicate of bug 1058040 ***
https://bugs.launchpad.net/bugs/1058040
I noticed in another bug report that you want to use fglrx because you
can't get HDMI sound with the open-source driver.
On kernels prior to 3.13 you can enable Radeon HDMI audio by adding
radeon.audio=1 to your GRUB kernel boot options as described at
https://help.ubuntu.com/community/Grub2/Troubleshooting#Editing_the_GRUB_2_Menu_During_Boot
With the 3.13 kernel the radeon.audio=1 kernel boot option is no longer
necessary. 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
or
xrandr --output HDMI-0 --set audio off
If your HDMI port is numbered differently (type "xrandr" to check) - you
might need to change HDMI-0 in the above command to HDMI-1 or HDMI-2.
Ubuntu 14.04 "Trusty Tahr" currently has the 3.13.0-12.32 kernel. If
you want to try and install the 3.13 kernel on an earlier Ubuntu
release, a PPA is available at http://kernel.ubuntu.com/~kernel-
ppa/mainline/ and instructions on how to install and uninstall it are
available at https://wiki.ubuntu.com/Kernel/MainlineBuilds
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1259423
Title:
1002:9591 Unity does not start after installing fglrx x64 drivers
Mobility Radeon HD 3650
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