Am 2016-02-11 um 10:06 schrieb Takashi Iwai: > On Wed, 10 Feb 2016 18:21:11 +0100, > Martin Kepplinger wrote: >> >> Am 2016-02-09 um 12:44 schrieb Takashi Iwai: >>> 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? >> >> alsa-info and dmesg are appended, and >> >> root@laptop:/home/martin/dev# cat /proc/asound/card*/eld#* >> monitor_present 0 >> eld_valid 0 > > OK, then could you put some debug print in intel_pin_eld_notify() in > sound/pci/hda/patch_hdmi.c? This is the callback to be called by i915 > driver at enabling / disabling HDMI/DP audio. intel_pin_eld_notify() is called during HDMI plugin with audio_ptr: ffff880242ea8800, port 1 and doesn't return early. > (Also, to be sure, check whether snd_hdac_i915_register_notifier() in > sound/hda/hda_i915.c is called, too.) snd_hdac_i915_register_notifier() is called during boot. > > If intel_pin_eld_notify() is registered but never called, it implies > something wrong in i915 driver side. If it gets called, we need to > track down: what port value was passed there, and how > hdmi_present_sense() and sync_eld_via_acomp() behave there. I'll try to look at said path, if you have no other idea in the meantime. > > > thanks, > > Takashi > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
