apt-get wonder.....

[Bill Vance]

On Sat, 27 Sep 2014, José Queiroz wrote:

> 
> 
> 2014-09-27 16:36 GMT-03:00 Bill Vance <kbun at xpresso.seaslug.org>:
> 
>
>       On Sat, 27 Sep 2014, Scott DuBois wrote:
>
>             On 09/26/2014 09:58 PM, Bill Vance wrote:
>
>                   Howdy;
>
>                   I recently did an apt-get
>                   update/upgrade, and
>                   have since noted a few oddities:
>
>                   1.  I can no longer watch movies on
>                   my DVD drive.
>
>                   I traced that down to the
>                   designation of the drive I
>                   use from, being changed from sr0 to
>                   sr1.  After
>                   changing a few settings to suit, I
>                   hit the, "play",
>                   button and get to watch vlc
>                   completely vanish.
>                   nothing in the log file, but this
>                   in /var/log/syslog:
> 
>
>                   Sep 26 21:39:47 xpresso kernel:
>                   [50705.834624]
>                   vlc[20612]: segfault at 0 ip
>                   b5386d84 sp b04c65f0
>                   error 4 in
>                   libdvdnav.so.4.2.0[b537d000+18000]
> 
>
>                   Is this something fixable, or
>                   something the programmer
>                   is going to have to do?
>
>                   Bill
> 
>
>             Hmm, how annoying! :-S
>
>             After reading your post, I opened VLC, inserted
>             a disk and got the same
>             "cannot open sr0 error" so I selected sr1 from
>             the dropdown under Media
>             -> Open Disc way at the bottom. It's working
>             here.
>
>             Have you tried going through the motions under
>             a "default" user profile
>             to see if it's a user setting? Sometimes our
>             _personal_ settings can get
>             in the way of functionality.
> 
>
>       Apparently the whole libdvd suite is acting hoaky.  I
>       logged onto
>       a shell as a different user, and tried vlc from the command
>       line,
>       and got:
> 
>
>       libdvdnav: Using dvdnav version 4.2.0
>       libdvdread: Using libdvdcss version 1.2.13 for DVD access
>       libdvdread: Could not open /dev/sr1 with libdvdcss.
>       libdvdread: Can't open /dev/sr1 for reading
>       libdvdnav: vm: failed to open/read the DVD
>       libdvdread: Using libdvdcss version 1.2.13 for DVD access
>       libdvdread: Could not open /dev/sr1 with libdvdcss.
>       libdvdread: Can't open /dev/sr1 for reading
>       [0x8f52a88] dvdread demux error: DVDRead cannot open
>       source: /dev/sr1
>       [0xb3c067f0] main input error: open of `dvd:///dev/sr1'
>       failed
> 
>
>       Checking /etc/mtab, things seem ok near as I can tell.
>
>       /dev/sr1 /media/IRON_MAN_3 udf
>       ro,nosuid,nodev,uid=1000,gid=1000,
>       iocharset=utf8,umask=0077,dmode=0500,uhelper=udisks 0 0
>
>       Could be some corrupted dataset the libdvd suite looks at,
>       but
>       it really looks more like the suite.
>
>       Bill
> 
> 
> Double check that your user belongs to the same group that owns
> "/dev/sr1".


Good point, when I adjusted that in kuser->Groups, I got
a whole new set of error messages in the shell.  One thing
that is as yet unidentified, is failing to create a file:

libdvdnav: Unable to find map file
'/home/kbun/.dvdnav/IRON_MAN_3.map'

Apparently, thats supposed to be there before the libdvd
suite starts up.  I suspect thats in the media automounting
stuff somewhere.  Then we get a couple hundred of these:

*** libdvdread: CHECK_VALUE failed in 
/build/buildd/libdvdread-4.2.0/src/ifo_read.c:1670 ***
*** for c_adt->cell_adr_table[i].start_sector < 
c_adt->cell_adr_table[i].last_sector ***

followed finally with:

Segmentation fault (core dumped)

This is beginning to look weird.

Bill