linux-kernel - Re: New CD/DVD drive - 80-wire cable detection failure

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Date:	Fri, 19 Oct 2007 22:12:30 +0100
From:	Nick Warne <nick@...sn.org>
To:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: New CD/DVD drive - 80-wire cable detection failure

On Friday 19 October 2007 22:07:43 Lennart Sorensen wrote:
> On Fri, Oct 19, 2007 at 10:03:09PM +0100, Nick Warne wrote:
> > No change:
> >
> > ide_setup: hdd=ide-cd
> >     ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:DMA, hdd:DMA
> > hdd: TSSTcorp CDDVDW SH-S202J, ATAPI CD/DVD-ROM drive
> > hdd: drive side 80-wire cable detection failed, limiting max speed to
> > UDMA33 hdd: selected mode 0x42
> > hdd: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache, UDMA(33)
>
> Did you try another cable?  DId you try using both the old IDE drivers
> and the new PATA libata drivers?  What is the hdd=ide-cd supposed to
> do?  Do you have a device present as hdc and if not, then why not?
> (Hint: ATA spec requires a master before you can have a slave, even
> though it frequently does work with just a slave.  Of course cable
> select seems even nicer since then the device at the end of an 80 wire
> cable is automatically master, and any additional device added to the
> middle connector on the cable becomes slave, and you should not connect
> a device to the middle connector without one on the end).
>
> Also make sure the right end of the cable is connected to the mainboard,
> just in case that matters.

I have (since 2.6.15 at least) hda, hdb, hdc, and hdd.

hda and hdb are mounted at boot.  hdc is not mounted, as I leave that drive 
for backups and mount as needed.

All I done was replace a duff cd/dvd drive (hdd) with a new one.

Nick

-- 
Free Software Foundation Associate Member 5508
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