From: Aidan Thornton <email@example.com> To: Oliver Neukum <firstname.lastname@example.org> Cc: Marco Zatta <email@example.com>, Greg Kroah-Hartman <firstname.lastname@example.org>, Linux USB Mailing List <email@example.com> Subject: Re: [PATCH] Fix chipmunk-like voice when using Logitech C270 for recording audio. Date: Thu, 20 Jun 2019 21:19:46 +0100 Message-ID: <CAB=c7ToV==vGZWOXaRqRcoOb4TNeVqi4QNAvgtiN0K6JjoF8Tg@mail.gmail.com> (raw) In-Reply-To: <firstname.lastname@example.org> On Mon, Jun 3, 2019 at 12:46 PM Oliver Neukum <email@example.com> wrote: > > Am Samstag, den 01.06.2019, 09:52 +0200 schrieb Marco Zatta: > > This patch fixes the chipmunk-like voice that manifets randomly when > > using the integrated mic of the Logitech Webcam HD C270. > > > > The issue was solved initially for this device by commit > > 2394d67e446bf616a0885167d5f0d397bdacfdfc but it was then reintroduced by > > e387ef5c47ddeaeaa3cbdc54424cdb7a28dae2c0. This patch is to have the fix > > back. > > Are you sure only the C270 is affected? I can unfortunately confirm that it doesn't just seem to be the C270. I've been having the same problem with my Logitech Webcam Pro 9000 which was one of the models that 2394d67e446b applied the RESET_RESUME quirk to, and adding it to the quirks list appears to have solved the problem. This doesn't make much sense though. e387ef5c47dd should apply this quirk to all Logitech UVC webcams, and this is definitely a UVC-based Logitech webcam with the appropriate VID and interface descriptor. Surely it shouldn't make any difference whether I add an entry for the specific VID+PID pair of my particular camera or not? The C270 is as well, I think. What's particularly annoying is that since this is an intermittent problem, it's hard to tell if I'm chasing a phantom solution for it again. Haven't managed to replicate it since applying this fix and did so pretty quickly before but you never know.
next prev parent reply index Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-06-01 7:52 Marco Zatta 2019-06-01 9:33 ` Sergei Shtylyov 2019-06-01 10:11 ` Marco Zatta 2019-06-01 11:45 ` Greg KH 2019-06-03 9:58 ` Oliver Neukum 2019-06-03 17:55 ` Marco Zatta 2019-06-04 9:14 ` Oliver Neukum 2019-06-05 9:30 ` Greg Kroah-Hartman 2019-06-20 20:19 ` Aidan Thornton [this message] 2019-07-02 12:46 ` Oliver Neukum 2019-07-02 13:25 ` Greg Kroah-Hartman 2019-07-03 13:54 ` Oliver Neukum
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