From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com (ext-mx07.extmail.prod.ext.phx2.redhat.com [10.5.110.11]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o1PJRNPQ006442 for ; Thu, 25 Feb 2010 14:27:23 -0500 Received: from gateway8.lastspam.com (gateway8.lastspam.com [72.0.198.36]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o1PJRCpk012147 for ; Thu, 25 Feb 2010 14:27:12 -0500 Message-ID: <4B86CF05.3@ctecworld.com> Date: Thu, 25 Feb 2010 14:27:01 -0500 From: j MIME-Version: 1.0 To: Devin Heitmueller Subject: Re: Chronic USB disconnect events for Pinnacle Dazzle DVC 100 video capture device References: <4B86C704.3060709@swartzlander.org> <829197381002251107v68f8cd87q90345de5715f6cc@mail.gmail.com> In-Reply-To: <829197381002251107v68f8cd87q90345de5715f6cc@mail.gmail.com> Cc: "video4linux-list@redhat.com" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: video4linux-list-bounces@redhat.com Errors-To: video4linux-list-bounces@redhat.com List-ID: Devin Heitmueller wrote: > On Thu, Feb 25, 2010 at 1:52 PM, Ben Swartzlander wrote: > >> I have a Pinnacle Dazzle DVC 100 USB video capture device hooked up to a >> security camera capturing video 24/7. A few times a month, my kernel >> suddenly decides that the USB device was disconnected and reconnected, >> resulting in the device getting a new number and causing my recording >> software to stop recording until I restart it with the new device number. >> Here is an example of the dmesg output when it happens: >> > > The USB host controller might be going to sleep if the PC's > suspend/resume kicked in. Or, is there a USB hub involved which might > have been power cycled? It's pretty hard to figure out *why* the > hardware decided to disconnect the USB device. > > The reason the device gets a new device number is because it is still > in use when the disconnect occurs. If the application were not > running at the time of the disconnect event, you would get the same > device number. > > Also, it's probably worth mentioning that these sorts of devices are > not really designed for capture 24/7, so it might be overheating or > some bug in the hardware. > > Devin > > try to update to ubuntu 9.04 from 8.10 this solve my problem but I think I need to modprobe blacklist any usb keu that need the ehci (usb2) or it kicks my em2860 vstream to usb1 hub 8.10 = my ehci was loaded after ohci 9.04 = ehci loaded before all the time -- This message has been verified by LastSpam (http://www.lastspam.com) eMail security service, provided by SoluLAN Ce courriel a ete verifie par le service de securite pour courriels LastSpam (http://www.lastspam.com), fourni par SoluLAN (http://www.solulan.com) www.solulan.com -- video4linux-list mailing list Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe https://www.redhat.com/mailman/listinfo/video4linux-list