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Date: Tue, 09 Feb 2016 12:44:24 +0100 From: Takashi Iwai <tiwai@...e.de> To: "Martin Kepplinger" <martink@...teo.de> Cc: <david.henningsson@...onical.com>, <han.lu@...el.com>, <libin.yang@...el.com>, <treding@...dia.com>, <perex@...ex.cz>, <alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org> Subject: Re: [BUG] [REGRESSION] [BISECTED] -rc1 breaks audio over HDMI for i915 On Tue, 09 Feb 2016 07:34:48 +0100, Martin Kepplinger wrote: > > The following change: > > 788d441 ALSA: hda - Use component ops for i915 HDMI/DP audio jack handling > > breaks audio over HDMI on my snd_hda_intel laptop. It is the first bad > commit. > > This was merged for -rc1 and isn't fixed until now, so I got nervous. > There are > no errors in the log that stand out. I'm no sound or alsa developer, and > just reverting it isn't easy since there is stuff depending on this. > > I'm happy to test possible fixes and hope v4.5 not to ship with such a big > regression ;) Could you give a bit more detail about your hardware? At best, give alsa-info.sh output (run with --no-upload option). Also, give the output of dmesg, too. In addition, what shows /proc/asound/card*/eld#*.* files? Does any of it show the proper connection state and ELD? A simple revert of the commit is a patch like below. Does it make the HDMI audio working again? thanks, Takashi --- --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -156,7 +156,7 @@ struct hdmi_spec { bool i915_bound; /* was i915 bound in this driver? */ }; -#ifdef CONFIG_SND_HDA_I915 +#if 0 #define codec_has_acomp(codec) \ ((codec)->bus->core.audio_component != NULL) #else
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