I have a pc with a10-7800, with kernel 4.0-rc1, after a while it does not work hdmi audio. Kubuntu 14.10 64 bit. Sorry my english is bad. Whit old kernel not problem. dmesg |grep HDMI [ 3.320925] [drm] HDMI-A-1 [ 3.320939] [drm] HDMI-A-2 [ 10.515340] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input6 [ 10.515465] input: HD-Audio Generic HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.1/sound/card0/input7 [ 25.091471] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 25.092613] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 25.391257] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 25.691148] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 25.991059] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 26.290938] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 26.590844] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 26.890724] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 27.190621] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD [ 27.490514] sound hdaudioC0D0: HDMI ATI/AMD: no speaker allocation for ELD uname -a Linux A10-7800 4.0.0-040000rc1-generic #201502222235 SMP Mon Feb 23 03:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
It is a regression: 3.19 to 4.0-rc1 Seems to be duplicate of https://bugs.freedesktop.org/show_bug.cgi?id=89327 When you hit DRI/DRM/gfx bug please have a look first at bugs.freedesktop.org Try to reenable HDMI audio with: xrandr --output HDMI-0 --set audio on or xrandr --output HDMI-0 --set audio auto
Thanks works.... ok, first I will look the other site
Patches available here: https://bugs.freedesktop.org/show_bug.cgi?id=89327