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SubjectRe: New CD/DVD reports 'Can Play Audio NO'
(cc'ing linux-ide)

Nick Warne wrote:
> Hi all,
>
> Very strange issue. I recently bought a new machine that came with a
> CD/DVD burner. All functions normally, except I cannot play audio CD.
>
> Information:
>
> Slackware 12.1 running latest stable kernel 2.6.26.5
>
> The drive is:
>
> Vendor : Optiarc
> Model : DVD RW AD-7200A
> Revision : 1.06
>
> Now, I have another drive (I purchased last year) that could play audio
> CD, so I installed that as master, and put the new drive as slave
> (old->hda new->hdb). The old(er) drive can and does play audio OK.
>
> I see this in /proc/sys/dev/cdrom/info:
>
> drive name: hdb hda
> drive speed: 48 48
> drive # of slots: 1 1
> Can close tray: 1 1
> Can open tray: 1 1
> Can lock tray: 1 1
> Can change speed: 1 1
> Can select disk: 0 0
> Can read multisession: 1 1
> Can read MCN: 1 1
> Reports media changed: 1 1
> Can play audio: 0 1
> Can write CD-R: 1 1
> Can write CD-RW: 1 1
> Can read DVD: 1 1
> Can write DVD-R: 1 1
> Can write DVD-RAM: 1 1
> Can read MRW: 1 1
> Can write MRW: 1 1
> Can write RAM: 1 1
>
> log/messages:
> Oct 4 09:27:01 sauron kernel: hda: UDMA/66 mode selected
> Oct 4 09:27:01 sauron kernel: hdb: UDMA/66 mode selected
> Oct 4 09:27:01 sauron kernel: hda: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW
> drive, 2048kB Cache
> Oct 4 09:27:01 sauron kernel: Uniform CD-ROM
> driver Revision: 3.20
> Oct 4 09:27:01 sauron kernel: hdb: ATAPI 48X
> DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache
>
> /log/syslog
> Oct 4 09:27:01 sauron kernel: hda: TSSTcorp CDDVDW SH-S202J, ATAPI
> CD/DVD-ROM drive
> Oct 4 09:27:01 sauron kernel: hdb: Optiarc DVD RW
> AD-7200A, ATAPI CD/DVD-ROM drive
>
>
> I have investigated this, but can't find any information at all - there
> are very few hits doing a search, but relevant pages I found are:
>
> D. Bray filled a very verbose bug report of a similar issue:
> http://lists.debian.org/debian-user/2008/09/msg01696.html
>
> A Gentoo user with the same drive reports another issue, but his CDROM
> info dump also reports this model cannot play audio CDs:
> http://bugs.gentoo.org/show_bug.cgi?id=218413
>
> A Ubuntu user with the same drive also rpeorts audio CDs cannot be
> played:
> http://ubuntuforums.org/showthread.php?t=675812
>
>
> Myself and D. Bray had a discussion on this, and we both feel this
> could be a kernel issue.
>
> I would be able to debug this issue if required.

Can you try libata driver and see whether anything is different?

--
tejun


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