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Date: Tue, 19 Oct 2004 16:59:00 +0200
From: marta <wrig@tiscali.it>
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Subject: Re: acd0 FAILURE READ_BIG MEDIUM
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On Tue, Oct 19, 2004 at 02:19:08AM +0000, cwidger wrote:
> >>uname -r
> >>5.3-BETA7
> >>
> >>acd0 : CDRW <qsi CD-RW/DVD-ROM SBW-241/VH04> at ata1-master UDMA33
> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
> >>acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x00 ascq=0x00 error=0
> >>
> >>This happens when there's a DVD in acd0. It doesn't happen when acd0's 
> >>empty.
> 
> 
> >What kind of DVD drive is it? Did this just start happening with 5.3, or
> >jas it been going on for a while?
> 
> I didn't have any problems with 5.2.1, only the 5.3-beta's. It's the built 
> in QSI SBW-241 CD-RW/DVD on my Compaq Presario 2100 Laptop. 


uname -r
	5.3-BETA7

sysctl hw.ata.atapi_dma
	hw.ata.atapi_dma: 0

I have the same laptop and the same problem, I solved using

	device atapicam
	device scbus
	device cd
	device pass

and cutting out

	device atapicd 

During the bootstrap I have 5/6 sec. of pause, after that 
all works well and I can use the DVD drive by the device /dev/cd0

marta