Same issue, AMD e-350 and 12.04 Precise. This is a pretty new system and I thought that it may be a hardware issue. This confirms that it is a driver issue.
MSI E350IA-E45 Motherboard The HDMI works fine for a while but randomly disappears. When the sound stops I can look in the sound settings and the HDMI option is gone. If I log out and log in again it will reappear and work fine for a while. Regards. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/974963 Title: [soundnua]: hdmi audio missing in sound settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/974963/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
