Messages in this thread | | | Date | Fri, 29 May 2015 09:37:44 +0200 | From | Takashi Iwai <> | Subject | Re: [BUG, bisect] ALSA: hda - No sound output |
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At Fri, 29 May 2015 00:27:14 -0700, Jeremiah Mahler wrote: > > Takashi, all, > > On several of my machines there is no longer any sound output when > running the latest linux-next (20150528). Activity can be seen in a > mixer such as pavucontrol suggesting that there should be sound, but > both the speakers and head phones are silent. > > I have bisected the kernel and found that the following patch introduced > the bug. > > From 49fb18972581a781658a4637de76e6069ed5964e Mon Sep 17 00:00:00 2001 > From: Takashi Iwai <tiwai@suse.de> > Date: Wed, 27 May 2015 08:37:19 +0200 > Subject: [PATCH] ALSA: hda - Set stream_pm ops automatically by generic parser > > This allows user to test power_save_node feature via sysfs or patch > firmware even on the codecs that don't specify it. It'll also save a > few lines. > > Signed-off-by: Takashi Iwai <tiwai@suse.de> > --- > sound/pci/hda/hda_generic.c | 5 ++++- > sound/pci/hda/patch_realtek.c | 1 - > sound/pci/hda/patch_sigmatel.c | 1 - > sound/pci/hda/patch_via.c | 1 - > 4 files changed, 4 insertions(+), 4 deletions(-)
I still don't figure out why this breaks. Could you give alsa-info.sh output of the affected machine?
thanks,
Takashi
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