When I try to mount a dvd, I get "no medium found."  Data cd's mount cleanly
& music cd's play, so I gather the drive is OK.  

xine dvd:/
This is xine (X11 gui) - a free video player v0.99.4.
(c) 2000-2004 The xine Team.
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdread: Could not open /dev/dvd with libdvdcss.
libdvdread: Can't open /dev/dvd for reading

fstab:
/dev/dvd         /mnt/dvd        auto            noauto,ro,user,exec     0 0

/dev:
lrwxrwxrwx 1 root root 3 May 17 15:47 dvd -> hdc
brw-rw---- 1 root cdrom 22, 0 May 17 15:47 hdc

groups:
bin tty disk lp wheel floppy audio cdrom video games cdrw usb users

Using udev, not devfs.  Any advice, hints, pointers, etc greatly
appreciated.

--

On Wed, 17 May 2006 20:04:25 -0400, Ed staggered into the Black Sun and
said:
> When I try to mount a dvd, I get "no medium found."  Data cd's mount
> cleanly & music cd's play, so I gather the drive is OK.  

> xine dvd:/
> This is xine (X11 gui) - a free video player v0.99.4.
> libdvdread: Using libdvdcss version 1.2.9 for DVD access
> libdvdread: Could not open /dev/dvd with libdvdcss.
> libdvdread: Can't open /dev/dvd for reading

Hm.  Which kernel are you using?  I ask this because I couldn't get
commercially produced movie DVDs to play at all with 2.6.15-gentoo-r5
and they worked just fine with 2.6.15.6.  (Use vanilla kernels; they
have many fewer bugs than distro-patched kernels IM(fairly extensive)E!)

> /dev/dvd    /mnt/dvd    auto    noauto,ro,user,exec     0 0

> lrwxrwxrwx 1 root root 3 May 17 15:47 dvd -> hdc
> brw-rw---- 1 root cdrom 22, 0 May 17 15:47 hdc
>
> groups:
> bin tty disk lp wheel floppy audio cdrom video games cdrw usb users

Interesting.  Do you have UDF support available as a module or compiled
into the kernel?  Does mounting a UDF data DVD work properly?  This all
should Just Work, barring kernel weirdness.  Ah well, HTH,

-- 
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin /    mail: TRAP + SPAN don't belong
http://www.brainbench.com     /    "He is a rhythmic movement of the
-----------------------------/      penguins, is Tux." --MegaHAL

Dances With Crows wrote:

> On Wed, 17 May 2006 20:04:25 -0400, Ed staggered into the Black Sun and
> said:
>> When I try to mount a dvd, I get "no medium found."  Data cd's mount
>> cleanly & music cd's play, so I gather the drive is OK.
> 
>> xine dvd:/
>> This is xine (X11 gui) - a free video player v0.99.4.
>> libdvdread: Using libdvdcss version 1.2.9 for DVD access
>> libdvdread: Could not open /dev/dvd with libdvdcss.
>> libdvdread: Can't open /dev/dvd for reading
> 
> Hm.  Which kernel are you using?  I ask this because I couldn't get
> commercially produced movie DVDs to play at all with 2.6.15-gentoo-r5
> and they worked just fine with 2.6.15.6.  (Use vanilla kernels; they
> have many fewer bugs than distro-patched kernels IM(fairly extensive)E!)

Whoa, another Gentoo user!  I have 2.6.16-gentoo-r7.  That's odd, though. 
Hard to believe that all the gentoo kernel users can't access a dvd. 
Forums don't seem to show that, but what the heck - I'll try another.  Any
problems you know of with the gentoo vanilla source tree?

>> /dev/dvd    /mnt/dvd    auto    noauto,ro,user,exec     0 0
> 
>> lrwxrwxrwx 1 root root 3 May 17 15:47 dvd -> hdc
>> brw-rw---- 1 root cdrom 22, 0 May 17 15:47 hdc
>>
>> groups:
>> bin tty disk lp wheel floppy audio cdrom video games cdrw usb users
> 
> Interesting.  Do you have UDF support available as a module or compiled
> into the kernel?  Does mounting a UDF data DVD work properly?  This all
> should Just Work, barring kernel weirdness.  Ah well, HTH,

Yes:
grep UDF /usr/src/linux/.config
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y

I agree.  It should Just Work.  But it doesn't.  I feel like the old Indian
in "Little Big Man" - "Sometimes the magic works and sometimes it doesn't."

-- 

On Thu, 18 May 2006 19:45:41 -0400, Ed staggered into the Black Sun and
said:
> Dances With Crows wrote:
>> Ed wrote:
>>> When I try to mount a dvd, I get "no medium found."  Data cd's mount
>>> cleanly & music cd's play, so I gather the drive is OK.
>>> This is xine (X11 gui) - a free video player v0.99.4.
>>> libdvdread: Using libdvdcss version 1.2.9 for DVD access
>>> libdvdread: Could not open /dev/dvd with libdvdcss.
>> Hm.  Which kernel are you using?  I ask this because I couldn't get
>> commercially produced movie DVDs to play at all with 2.6.15-gentoo-r5
>> and they worked just fine with 2.6.15.6.
> Whoa, another Gentoo user!

We're all over Usenet.  (Mostly because we have to do *something* while
waiting for "emerge kde" to finish [-: )

> I have 2.6.16-gentoo-r7.  That's odd, though.  Hard to believe that
> all the gentoo kernel users can't access a dvd.  Forums don't seem to
> show that, but what the heck - I'll try another.  Any problems you
> know of with the gentoo vanilla source tree?

No idea about the ebuild, but if it says "vanilla", it should have no
patches of any sort applied.  I personally don't manage the kernel
sources with portage; the kernel is complex enough and machine-specific
in so many ways that I don't trust *any* distro's package manager to get
it right.

>> Interesting.  Do you have UDF support available as a module or
>> compiled into the kernel?  Does mounting a UDF data DVD work
>> properly?  This all should Just Work, barring kernel weirdness.  Ah
> grep UDF /usr/src/linux/.config
> CONFIG_UDF_FS=y
> CONFIG_UDF_NLS=y
> I agree.  It should Just Work.  But it doesn't.

The problems I had with a Gentoo kernel and movie DVDs also produced
warnings about unreadable sectors in the output from dmesg.  If you've
still got that kernel and a movie DVD sitting around, see if there are
any of those messages showing up when you try to use xine.

-- 
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin /    mail: TRAP + SPAN don't belong
http://www.brainbench.com     /    "He is a rhythmic movement of the
-----------------------------/      penguins, is Tux." --MegaHAL