From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Dasenbrook Subject: Kernel hangs trying to speak to DVD-ROM Date: Wed, 21 Dec 2005 22:24:23 +0100 Message-ID: <43A9C807.7010306@daviddasenbrook.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from s176.evanzo-server.de ([62.67.235.176]:37968 "EHLO mx12.evanzo-server.de") by vger.kernel.org with ESMTP id S932159AbVLUVQR (ORCPT ); Wed, 21 Dec 2005 16:16:17 -0500 Received: from [192.168.178.21] (Iad4f.i.pppool.de [85.73.173.79]) by mx12.evanzo-server.de (Postfix) with ESMTP id 1E047CA297 for ; Wed, 21 Dec 2005 22:16:04 +0100 (CET) Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Hello, I have this weird problem, and I would appreciate if someone could give me a hint on how to solve it: Whenever I connect a DVD-ROM drive (ANY DVD-Drive, not just a specific one) to my computer via the onboard IDE-connector, I cannot boot any more. The last message the kernel prints (actually, I think it's the ide-cd module) after getting hung up is this: hdc: packet command error: status=0x51 { DriveReady SeekComplete Error } hdc: packet command error: error=0x04 hdc: request sense failure: status=0x51 { DriveReady SeekComplete Error } hdc: request sense failure: error=0x04Aborted Command I tried using the first and the second IDE channel, using the drive as master and slave. The strange thing is that CD-drives work perfectly fine, this happens just with DVD-Drives. Those DVD-Drives work fine in another computer with the exact same kernel. My mainboard is a AK70 by DFI, I think the onboard IDE-controller is the AMD7409 (that's what the kernel says.) I use Linux 2.6.8-2. 2.4.x kernels don't work either, real old distributions with kernel 2.2 or lower do. After playing around a bit, I found the DVD works when I type "hdc=noprobe hdc=cdrom" on the kernel command line. But still, I cannot do that when trying to run the debian installer or installers of debian derivatives. When detecting the DVD-ROM drive, the installer just hangs and I can't do anything any more but reboot. I find this really strange, maybe someone has a clue. If not, thanks anyway for taking the time to read this message. If you reply to this, please send me a CC. Thank you, David Dasenbrook