[Solved... but I still wonder what happened] DVD doesn't play

[Marcel Rieux]

On Fri, Mar 26, 2010 at 4:11 AM, François Patte <
francois.patte at mi.parisdescartes.fr> wrote:

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> Le 25/03/2010 23:01, Marcel Rieux a écrit :
> >
> >
> > On Thu, Mar 25, 2010 at 3:28 AM, François Patte
> > <francois.patte at mi.parisdescartes.fr
> > <mailto:francois.patte at mi.parisdescartes.fr>> wrote:
> >
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> >     Le 25/03/2010 06:39, Marcel Rieux a écrit :
> >     > Since nobody seemed to report a problem playing DVDs, I decided to
> >     check
> >     > my settings.
> >     >
> >     > Smplayer and Gmplayer were both set to play DVDs from /dev/dvd
> >     >
> >     > I checked and there was no /dev/dvd. So, I did:
> >     >
> >     > ls -l /dev/dvd*
> >     > lrwxrwxrwx. 1 root root 3 2010-03-24 12:52 /dev/dvd1 -> sr0
> >     > lrwxrwxrwx. 1 root root 3 2010-03-24 12:52 /dev/dvdrw1 -> sr0
> >
> >     Is it still there after reboot?
> >
> >
> > Absolutely. Since I have no access to BIOS settings to put the computer
> > to sleep, I reboot every day. And there's not a trace of /dev/dvd , only
> > /dev/dvd1 and /dev/dvdrw1, which are both links to /dev/sr0.
> >
> > When you don't have problems, it's not the kind of settings you check
> > closely but, since my dvd players were pointing to /dev/dvd, I would
> > think this is the normal setting.
> >
> > I believe the devices are created at boot time, no? And I even have no
> > idea how I could prevent /dev/dvd form being created.
>
> Yes, they are created by udev. I had the same problem as yours but my
> description of the problem was slightly different from yours: links
> /dev/dvd to /dev/sr0 were created at boot time but erased as soon as I
> put a cd|dvd in the drive. So I could use the drive only once!
>
>
> The missing file was: /etc/udev/rules.d/70-persistent-cd.rules
>

Yes, I have it. Here's the content:

# DVD-RW_DVR-217D (pci-0000:00:11.0-scsi-1:0:0:0)
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-1:0:0:0",
SYMLINK+="cdrom", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-1:0:0:0",
SYMLINK+="cdrw", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-1:0:0:0",
SYMLINK+="dvd", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:11.0-scsi-1:0:0:0",
SYMLINK+="dvdrw", ENV{GENERATED}="1"
# DVD-RW_DVR-217D (pci-0000:00:11.0-scsi-3:0:0:0)
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*",
ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="cdrom1",
ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*",
ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="cdrw1",
ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*",
ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="dvd1",
ENV{GENERATED}="1"
SUBSYSTEM=="block", ENV{ID_CDROM}=="?*",
ENV{ID_PATH}=="pci-0000:00:11.0-scsi-3:0:0:0", SYMLINK+="dvdrw1",
ENV{GENERATED}="1"
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