Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: pulseaudio (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1066488
Title:
No sound on Dell XPS after suspend (ALC275)
Status in “pulseaudio” package in Ubuntu:
Confirmed
Bug description:
Dell XPS One 2710, Ubuntu 12.04, Kernel 3.2.0.31 or 3.2.0.32 or 3.6.2
Sound works out of the box, until machine is supended to RAM. After
suspend and resume, no sound at all.
A suspend to Disk and resume restores sound!
aplay -l:
Karte 0: PCH [HDA Intel PCH], Gerät 0: ALC275 Analog [ALC275 Analog]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
Karte 0: PCH [HDA Intel PCH], Gerät 3: HDMI 0 [HDMI 0]
Sub-Geräte: 1/1
Sub-Gerät #0: subdevice #0
lsmod|grep snd:
snd_hda_codec_hdmi 32506 1
snd_hda_codec_realtek 79668 1
snd_hda_intel 34147 3
snd_hda_codec 135374 3
snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13668 1 snd_hda_codec
snd_pcm 97661 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_timer 29989 1 snd_pcm
snd 79391 13
snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore 15091 1 snd
snd_page_alloc 18572 2 snd_hda_intel,snd_pcm
It is NOT possible to unload snd modules.
sudo /sbin/alsa force-unload:
Unloading ALSA sound driver modules: snd-hda-codec-hdmi snd-hda-codec-realtek
snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-seq-midi snd-rawmidi
snd-seq-midi-event snd-seq snd-timer snd-seq-device snd-page-alloc
(failed: modules still loaded: snd-hda-codec-hdmi snd-hda-codec-realtek
snd-hda-intel snd-hda-codec snd-hwdep snd-pcm snd-timer snd-page-alloc).
All information in the net either is depreciated (using acpi_suspend)
or refers to chips that have options (e.g. modprobe snd_hda_intel
option=acer). There is NO documentation about options of the ALC275
chip.
Anybody has a solution to this?
Thanks
Michael
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