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From: Mark Brown <broonie@kernel.org>
To: Ricard Wanderlof <ricard.wanderlof@axis.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
	James Cameron <quozl@laptop.org>, Takashi Iwai <tiwai@suse.de>,
	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
	Richard Fitzgerald <rf@opensource.wolfsonmicro.com>,
	David Henningsson <david.henningsson@canonical.com>
Subject: Re: Splitting out controls
Date: Fri, 30 Oct 2015 11:57:10 +0900	[thread overview]
Message-ID: <20151030025710.GU28319@sirena.org.uk> (raw)
In-Reply-To: <alpine.DEB.2.02.1510180836390.24963@lnxricardw1.se.axis.com>


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On Sun, Oct 18, 2015 at 08:41:42AM +0200, Ricard Wanderlof wrote:

> Is there any form of statistics on more precisely what type of failures in 
> this area occur in the real world? Speakers have been mentioned (and I 
> think were the original issue that started the discussion) and are a clear 
> case. One could imagine output stages being overdriven (even with no load) 
> in some way, or mismatched signal levels which could cause an opamp to 
> fail for instance. But have any such cases been reported? It would seem 
> very hard to diagnose for one thing, unless a hardware manufacturer 
> explicitly noted it in some documentation (which I suspect would be very 
> unlikely for say a motherboard or sound card manufacturer).

Speaker related issues are overwhelmingly the most common thing here,
either straight burnout due to overdriving or mechanical damage caused
by vibrations.

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  reply	other threads:[~2015-10-30  2:57 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-12 13:49 [Minutes] ELCE Audio mini conf Liam Girdwood
2015-10-12 15:30 ` Jaroslav Kysela
2015-10-12 20:59 ` Splitting out controls James Cameron
2015-10-13  7:07   ` David Henningsson
2015-10-13  8:27     ` Keyon
2015-10-13 14:55     ` Pierre-Louis Bossart
2015-10-13 15:56       ` David Henningsson
2015-10-13 16:08         ` Pierre-Louis Bossart
2015-10-16  6:41           ` David Henningsson
2015-10-16 14:49             ` Pierre-Louis Bossart
2015-10-16 15:24               ` Richard Fitzgerald
2015-10-30  2:48                 ` Mark Brown
2015-10-16 15:28               ` Takashi Iwai
2015-10-14 18:20         ` Liam Girdwood
2015-10-16 15:35     ` Richard Fitzgerald
2015-10-16 16:00       ` Takashi Iwai
2015-10-16 16:31         ` Richard Fitzgerald
2015-10-16 17:00           ` Takashi Iwai
2015-10-17 15:54         ` Pierre-Louis Bossart
2015-10-17 16:02           ` Takashi Iwai
2015-10-18  6:41             ` Ricard Wanderlof
2015-10-30  2:57               ` Mark Brown [this message]
2015-10-17 16:25           ` Alexander E. Patrakov
2015-10-30  2:50       ` Mark Brown
2015-10-30  2:36     ` Mark Brown
2015-10-30  8:36       ` David Henningsson
2015-10-30  8:53         ` James Cameron
2015-10-30  9:04           ` David Henningsson
2015-11-01  2:45             ` Mark Brown
2015-10-13 14:09 ` 'BATCH flag for USB' and 'ALSA Core Challenges' Takashi Sakamoto
2015-10-13 14:44   ` Alexander E. Patrakov
2015-10-18  3:22     ` Takashi Sakamoto
2015-10-13 16:01   ` Pierre-Louis Bossart
2015-10-14 12:27   ` Liam Girdwood
2015-10-22 17:10 ` [Minutes] ELCE Audio mini conf Mark Brown
2015-10-22 17:14 ` DP hotplug on USB C Mark Brown

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