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#1 2005-06-19 22:05:25

Locri
Member
From: Ontario, Canada
Registered: 2005-02-22
Posts: 55

DVD Playback Issues

Hey everyone,

This is my first time posting (although I've had an account for awhile).  I've finally gotten around to installing Arch, which is working wonderfully, however I'm having difficulty configuring some of the stuff to work the way it should.  The one that I'm currently having issues with is DVD playback.  I've installed Kaffeine and mplayer (although I don't know that mplayer is really necessary) and libdvdcss.

So far though, I can only look at the data on DVDs, but can't actually play them (through both Kaffeine and Mplayer).  I can access data alright, for example I have a bunch of AVI files on one DVD and can play them without difficulty, however when I try to play a movie DVD I get the message (from Kaffeine):

"Source cannot be read.  Maybe you don't have enough rights for this, or source doesn't contain data (e.g. no disk in drive) /dev/dvd"

and

"No plugin found to handle this resource (dvd:/)"

As I mentioned above, I have no problem accessing other data, so I am sure I have enough rights, and I am in the optical group.  Any ideas as to what could be causing this problem?

Thanks!

-Locri

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#2 2005-06-19 22:13:39

keevn7
Member
From: Lancaster, OH, US
Registered: 2005-06-09
Posts: 206
Website

Re: DVD Playback Issues

Try VLC and see if you have the same issue.

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#3 2005-06-19 22:21:22

dtw
Forum Fellow
From: UK
Registered: 2004-08-03
Posts: 4,431
Website

Re: DVD Playback Issues

are your symlinks ok?

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#4 2005-06-19 22:40:13

Locri
Member
From: Ontario, Canada
Registered: 2005-02-22
Posts: 55

Re: DVD Playback Issues

Which symlinks are you refering to?  I saw some references to symlinks, but I can't find anything on the wiki or on Google that helps me understand what exactly is supposed to be linked with what.

Trying vlc now, although I doubt it will make much of a difference, neither mplayer nor kaffeine (using Xine) can play a DVD.

-Locri

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#5 2005-06-19 22:52:21

phrakture
Arch Overlord
From: behind you
Registered: 2003-10-29
Posts: 7,879
Website

Re: DVD Playback Issues

what does "ls -l /dev/dvd" give you?

can you try running it as root, to verify if it's a permission issue or not?

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#6 2005-06-19 22:58:48

T-Dawg
Forum Fellow
From: Wilmington, NC
Registered: 2005-01-29
Posts: 2,734

Re: DVD Playback Issues

Try changing UDF to iso9660 in your fstab. I think thats what I had to do...
If you don't have udev installed, I would also recommend doing that.
http://wiki2.archlinux.org/index.php/UdevHowTo

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#7 2005-06-19 23:32:46

Locri
Member
From: Ontario, Canada
Registered: 2005-02-22
Posts: 55

Re: DVD Playback Issues

Ok, I finally figured it out.

My /dev/dvd is set up just fine, but when I created /mnt/dvd, the permissions were wonky somehow.  I chmod'd it to 777 and it works find now both inside and outside of root.

Thanks for the help.

I'm trying to do the whole uDev thing too, but I'm having trouble understanding the point of what it does and the wiki entry on uDev... but I can look for that myself.

-Locri

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#8 2005-06-19 23:37:50

phrakture
Arch Overlord
From: behind you
Registered: 2003-10-29
Posts: 7,879
Website

Re: DVD Playback Issues

Locri wrote:

I'm trying to do the whole uDev thing too, but I'm having trouble understanding the point of what it does and the wiki entry on uDev... but I can look for that myself.

From a user's point of view there isn't much changed.  From a technical point of view, devfs has alot of code that is just poorly done and certain thing's can't be fixed due to design.  Also, managing device nodes is something that needs not be part of the kernel proper - udev does this in user-space.

In addition, udev alos supports the windows style "plug in device and go" type support, as it will automatically load modules to accomodate new devices.

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#9 2005-06-19 23:43:28

T-Dawg
Forum Fellow
From: Wilmington, NC
Registered: 2005-01-29
Posts: 2,734

Re: DVD Playback Issues

Locri wrote:

...I chmod'd it to 777

You shouldn't have had to do that. Unless you want everyone to have all permissions to the folder.
I have default 755 in mine:

[root@eLINUXe ~]# ls -la /mnt/dvd
total 0
drwxr-xr-x  2 root root  48 2005-02-02 23:34 .
drwxr-xr-x  8 root root 192 2005-04-20 08:05 ..

There's a discussion about udev as we speak. Maybe that'll shed some more light on it:
http://bbs.archlinux.org/viewtopic.php?t=13156

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#10 2005-06-20 01:45:11

Locri
Member
From: Ontario, Canada
Registered: 2005-02-22
Posts: 55

Re: DVD Playback Issues

Thanks for all the advice, this is a heck of a community!

As for the chmod, my drive is a DVD burner, so I am guessing I'll need write access to it as well.  I'm still getting the hang of this I guess.

As far as the udev stuff goes, how can you tell it is running?  I know I have udev installed, but I'm not sure how to check that it is doing what it is supposed to.  I've followed the walkthrough from the wiki, but I haven't noticed any difference (which I guess might be a good sign).

Oh well, I'll do some searching and see if I can find anything.  Thanks again for the help.

-Locri

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#11 2005-06-20 01:51:09

T-Dawg
Forum Fellow
From: Wilmington, NC
Registered: 2005-01-29
Posts: 2,734

Re: DVD Playback Issues

when you reboot you should see it as the first thing to load up.

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#12 2005-07-29 22:25:52

arch_mike
Member
From: Toronto
Registered: 2005-06-25
Posts: 29
Website

Re: DVD Playback Issues

i had to chmod 0777 /mnt/dvd and /dev/dvd for my dvd playback to work  :shock:


<Insert>

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#13 2005-07-31 07:47:30

nggalai
Member
From: Switzerland
Registered: 2004-08-01
Posts: 215
Website

Re: DVD Playback Issues

arch_mike wrote:

i had to chmod 0777 /mnt/dvd and /dev/dvd for my dvd playback to work  :shock:

Are your users in the "optical" group? This hefty a chmod shouldn't be necessary for DVD playback.

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