From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([69.77.167.62] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1LSwSD-0004Cv-50 for garchives@archives.gentoo.org; Fri, 30 Jan 2009 16:42:53 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id AB183E023B; Fri, 30 Jan 2009 16:42:51 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 89D76E023B for ; Fri, 30 Jan 2009 16:42:51 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id 3E138645C1 for ; Fri, 30 Jan 2009 16:42:51 +0000 (UTC) X-Virus-Scanned: amavisd-new at gentoo.org X-Spam-Score: -2.88 X-Spam-Level: X-Spam-Status: No, score=-2.88 required=5.5 tests=[AWL=0.719, BAYES_00=-2.599, RCVD_IN_DNSWL_LOW=-1] Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id u48o6OtxZgGk for ; Fri, 30 Jan 2009 16:42:45 +0000 (UTC) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTP id 505D0645C3 for ; Fri, 30 Jan 2009 16:42:44 +0000 (UTC) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LSwS1-00044d-O8 for gentoo-user@gentoo.org; Fri, 30 Jan 2009 16:42:41 +0000 Received: from www.buffer.net ([24.73.161.102]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 30 Jan 2009 16:42:41 +0000 Received: from wireless by www.buffer.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 30 Jan 2009 16:42:41 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-user@lists.gentoo.org From: James Subject: [gentoo-user] Re: problem with webcam Date: Fri, 30 Jan 2009 16:42:33 +0000 (UTC) Message-ID: References: <1bab11bd0901291925h11322a73r5fc4eefc697dc5d8@mail.gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: main.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 24.73.161.102 (Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.19) Gecko/20090117 SeaMonkey/1.1.14) Sender: news X-Archives-Salt: e7b8df12-9d31-44b9-8c27-285fa03b6f14 X-Archives-Hash: 1d98fae8f3e675a64dbcb621a81c971c Linyin gmail.com> writes: > I already do video for linux in the kernel. Install SDL & SPCAVIEW > have no error. But when i use it, error said cant find driver. Are you certain that the camera is working? If its and NTSC/PAL coax output, just plug it into an old analog TV and verify the signal output is good first. Even connecting the camera to working windows software will do for output signal verification. Many cameras are easy to damage, from bumps or drops..... If it's a usb webcam, maybe you have a channel input to something that works generically? The point is to make sure valid video signal is emminating from the camera first. Next I use some very simple program and syntax to make sure it's working on the computer. Use something simple and generic. I currrently use this syntax with mplayer: mplayer -fps 15 tv:// -tv driver=v4l2:device=/dev/v4l/video1 There are a multitude of issues that can break any given camera/package combo, and many are hard to track down. It can be use flag, newer versions of software fail, kernel issue, command line options, ... just to mention a few. Manually parse through /dev/v4l/video* and find where your devices is connected to the kernel. good hunting, hth, James