I would like to add some information to this bug report, which may or may not be relevant. There seems to be a general problem with HDMI audio in recent kernel versions. I am using Debian kernel packages, on an AMD64 system with a Radeon R9-280 video card:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti HDMI Audio [Radeon HD 7870 XT / 7950/7970] My experience has been as follows: Linux v4.6.4 -- HDMI audio works Linux v4.9.2 -- HDMI audio works Linux v4.9.6 -- HDMI audio does not work There were also problems with kernel versions 4.7 and 4.8. I had the impression that it was intermittent; sometimes when the audio did not work, a reboot or power cycle into the same kernel version would make it start working. It appears that with my hardware, Linux v4.6 was completely reliable; more recent versions are substantially less so, or even completely broken. (I'm not exactly sure whether v4.9.2 always worked, or only most of the time.) I hope this information is useful in locating the specific source of the problem. <ian_br...@mail.ru> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1657994 Title: Regression: HDMI audio produces no sound (Skylake NUC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1657994/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
