https://bugzilla.kernel.org/show_bug.cgi?id=107001

Bug ID: 107001 Summary: Radeon HDMI audio lost after resuming from suspend Product: Drivers Version: 2.5 Kernel Version: 4.2.0 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: timo.valtoaho@gmail.com Regression: No

Created attachment 191781 --> https://bugzilla.kernel.org/attachment.cgi?id=191781&action=edit output of scripts/ver_linux

After switching to 4.2 series, I noticed that audio through HDMI was gone after first suspend/resume cycle (systemctl suspend). I can get audio back with some simple operations, like executing xrand, lanching gnome-control-center or swithcing to a virtual terminal (ctrl+alt+F1). All of these operations will restore audio.

I have tested this out, and it was 4.2-rc2 that introduced this issue, and is still present in 4.3-rc7. Also, it doesn't matter whether radeon driver is a module or compiled in with required firmware.

System is Debian Jessie (8.2), Gnome

Output of scripts/ver_linux:

Attached files:

output of scripts/ver_linux output of lspci -vvv