From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Mack Subject: Re: Regression in sound/usb/ Date: Wed, 11 Jul 2012 17:28:17 +0200 Message-ID: <4FFD9B91.1010402@gmail.com> References: <4FF18FCF.6020306@gmail.com> <4FFC9B4F.6060600@gmail.com> <4FFD39ED.9050706@gmail.com> <4FFD9B29.1020403@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-bk0-f51.google.com (mail-bk0-f51.google.com [209.85.214.51]) by alsa0.perex.cz (Postfix) with ESMTP id D13232447C for ; Wed, 11 Jul 2012 17:30:30 +0200 (CEST) Received: by bkcjk13 with SMTP id jk13so929291bkc.38 for ; Wed, 11 Jul 2012 08:28:22 -0700 (PDT) In-Reply-To: <4FFD9B29.1020403@canonical.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Joseph Salisbury Cc: Takashi Iwai , alsa-devel@alsa-project.org, Clemens Ladisch , Philipp Dreimann List-Id: alsa-devel@alsa-project.org On 11.07.2012 17:26, Joseph Salisbury wrote: > On 07/11/2012 04:31 AM, Daniel Mack wrote: >> On 11.07.2012 09:30, Philipp Dreimann wrote: >>> On 10 July 2012 23:14, Daniel Mack wrote: >>>> On 05.07.2012 17:36, Takashi Iwai wrote: >>>>> At Thu, 5 Jul 2012 17:32:30 +0200, >>>>> Philipp Dreimann wrote: >>>>>> >>>>>> On 5 July 2012 16:41, Takashi Iwai wrote: >>>>>>>> Try the patch below. If it still doesn't work, give the kernel >>>>>>>> message again and lsusb -v output, too. >>>>>>> >>>>>>> Did it make any difference? >>>>>> >>>>>> No, it unfortunately did not. >>>>>> >>>>>> lsusb is attached and the parts of the kernel log are in the mail: >>>>>> >>>>>> [ 41.243211] usb 2-1.2: new high-speed USB device number 3 using ehci_hcd >>>>>> [ 41.605666] uvcvideo: Found UVC 1.00 device (046d:0821) >>>>>> [ 42.002275] input: UVC Camera (046d:0821) as >>>>>> /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.2/input/input12 >>>>>> [ 42.085880] usbcore: registered new interface driver snd-usb-audio >>>>>> >>>>>> [ 52.790139] uvcvideo: Failed to query (GET_DEF) UVC control 2 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.794363] uvcvideo: Failed to query (GET_DEF) UVC control 2 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.798375] uvcvideo: Failed to query (GET_DEF) UVC control 3 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.802499] uvcvideo: Failed to query (GET_DEF) UVC control 7 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.806617] uvcvideo: Failed to query (GET_DEF) UVC control 11 on >>>>>> unit 2: -71 (exp. 1). >>>>>> [ 52.810734] uvcvideo: Failed to query (GET_DEF) UVC control 4 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.814855] uvcvideo: Failed to query (GET_DEF) UVC control 5 on >>>>>> unit 2: -71 (exp. 1). >>>>>> [ 52.818976] uvcvideo: Failed to query (GET_CUR) UVC control 11 on >>>>>> unit 2: -71 (exp. 1). >>>>>> [ 52.823096] uvcvideo: Failed to query (GET_DEF) UVC control 8 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.827215] uvcvideo: Failed to query (GET_DEF) UVC control 1 on >>>>>> unit 2: -71 (exp. 2). >>>>>> [ 52.831331] uvcvideo: Failed to set UVC probe control : -71 (exp. 26). >>>>>> [ 52.835459] uvcvideo: Failed to set UVC probe control : -71 (exp. 26). >>>>>> The last line repeats a few times, then the Failed to query block >>>>>> repeats again, and so on. But only if I try to use the webcam. >>>>>> >>>>>> [ 82.363599] 3:1:3: cannot set freq 32000 to ep 0x86 >>>>>> Is showing up without using the webcam. >>>>> >>>>> Hm, it looks better than before (it was '3:-1:3' or such), but there >>>>> is still something strange there. >>>> >>>> Sorry for the long delay on this. I finally found some time to look into >>>> this and it seems that I got the calls to usb_set_interface wrong. >>>> Attached is a patch to fix this - could everybody who is affect please >>>> give that a quick try? More explanation is in the commit log. >>> >>> The camera is now working for a short time: >>> [ 56.421399] usb 2-1.2: new high-speed USB device number 4 using ehci_hcd >>> [ 57.224234] uvcvideo: Found UVC 1.00 device (046d:0821) >>> [ 57.237221] input: UVC Camera (046d:0821) as >>> /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.2/input/input15 >>> Camera and microphone are working. Some time later we're back to the old issue: >> >> Ok, I see. Drop this, I'm working on a new one. I will find some time >> later today to look into this. Thanks for your patience! >> >> >> Daniel > > I just sent an email to Philipp that I've been unable to reproduce the > failure on my hardware. However, a user testing your patch has also run > into the same failure as Philipp: > > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1018020/comments/38 > > That users webcam will work up to 15 minutes, than fail. I'll pick up an USB hw analyzer later today and then try with a Logitech camera. Will keep you posted.