[alsa-devel] Intel alsa sound request for Laptops

John Frankish john.frankish at outlook.com
Tue Jan 31 08:47:54 CET 2017


> > > > > > > That said, if you boot without i915, drop the index option.
> > > > > > >
> > > > > > I booted without i915 and did not set any index options (the 
> > > > > > default behaviour of tinycorelinux is to boot clean like a 
> > > > > > live-CD
> > > > > > distro)
> > > > > > 
> > > > > Ah OK, that's the way the current HD-audio driver behaves.
> > > > > It takes the card at first, then it leaves when the i915 component binding fails (like nomodeset).
> > > > > It's good to keep the device assignment consistent.  OTOH, it may leave the card#0 empty as a result.
> > > > > So this is the expected behavior.
> > > > > 
> > > > Great - so the expected behaviour is for it to fail :P
> > > 
> > > Yeah, "fail" to your expectation, unfortunately.
> > > 
> > >The nomodeset or whatever disabling KMS itself is already the hackish workaround, and it's in a sort of abnormal state.
> > >
> > I disagree - in fact I was wrong to state that Xorg was using the modesetting driver, further down Xorg.0.log
> > I see that the modesetting driver is unloaded and the vesa driver is used instead.
> > 
> > The use of the vesa driver is not hackish and especially not when i915 has a serious bug and the Intel driver is not stable.
> 
> Such a buggy state *is* already abnormal, no?
> It should be fixed instead of the forever workaround.
> 
I found four or five bug reports for i915, but nothing indicating that it was fixed in the latest kernel versions.
(I'm using 4.2.9)

> > > > Is there any chance of that being fixed in the future?
> > > >
> > > As already mentioned, the "fix" is to use PA.
> > >
> > Using pulseaudio is not going to fix the broken analogue sound when 
> > the i915 driver is not loaded
> 
> Did you really test it?  If yes, please give the log.
>
As per earlier in the thread:

$ aplay -l
**** List of PLAYBACK Hardware Devices **** card 1: PCH [HDA Intel 
PCH], device 0: ALC3226 Analog [ALC3226 Analog]
Subdevices: 1/1

$ alsamixer
cannot open mixer: No such file or directory



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