For some reason I don't have any sound after suspend/standby on Ubuntu 14.04.1.
It happens on a XMG C504, and the online solutions do NOT work.
According to alsamixer the 0 is a Intel Haswell HMDI and the 1 is a Realtek ALC282
cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7414000 irq 53
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7410000 irq 52
lspci | grep -i audio
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
lsmod | grep -q snd_hda_intel
lsmod | grep -q snd_foo
return no result
This does not work
sudo alsa force-reload
Or this
pulseaudio --kill
pulseaudio --start
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The most funny thing is, if I play something, putt the volume wide open and then mute it it plays for a fraction of a second, this only happens when muting not when unmuting.
--- EDIT ---
Another strange thing, sound over HMDI does work after suspend/standby... switching back to the speakers doesn't... even after repeatedly switching between HDMI and speakers...
--- EDIT ---
To help as much people as possible, the following systems seem to be affected by this bug, all based on the Realtek ALC282;
- XMG C504 (Based on the Gigabyte P35 series)
- Gigabyte P35w v2
- Gigabyte P35x v4
As provided by @NeverMinded
The bug has been reported : bugs.launchpad.net and bugzilla.kernel.org
