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  1. #1

    Help with VLC/Ubuntu 18.04


    Hi,
    I used to run Ubuntu 15.10 and at some point last year, VLC stopped working. I didn't use it that much so ignored the problem.

    However, I have just upgraded to 18.04 and still have the same problem.

    I've followed the instructions which mentions installing libdvdcss, libdvdread4 and libdvdnav4 and Ubuntu confirms that I have the latest versions of these. Still not luck. Then I saw a post which says to try deleting the ~./dvdcss directory, but still no luck.

    When I run VLC and select the Disc option, I get the following in the dialog box:

    Playback failure:
    DVDRead could not open the disc "/dev/dvdrw".
    Your input can't be opened:
    VLC is unable to open the MRL 'dvd:///dev/dvdrw'. Check the log for details.


    (It doesn't matter what I select, /dev/dvd, /dev/cdrw etc., I get the same problem).

    Can anyone help?

  2. #2
    Linux Guru Segfault's Avatar
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    Dead drive? Can it be read at all? Look at output of 'file -s /dev/sr0'.

  3. #3
    I can use the drive to look at data CDs (html, text, graphics etc.)

    paul@paul-HP-Pavilion-Notebook:/dev$ file -s /dev/sr0
    /dev/sr0: writable, no read permission

    ls -al /dev/dvd
    lrwxrwxrwx 1 root root 3 Apr 28 16:31 dvd -> sr0

    ls -al /dev/sr0
    brw-rw----+ 1 root cdrom 11, 0 Apr 28 19:26 sr0

    Alright, now I am confused!

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  5. #4
    I can use the drive to look at data CDs (html, text, graphics etc.)

    paul@paul-HP-Pavilion-Notebook:/dev$ file -s /dev/sr0
    /dev/sr0: writable, no read permission

    ls -al /dev/dvd
    lrwxrwxrwx 1 root root 3 Apr 28 16:31 dvd -> sr0

    ls -al /dev/sr0
    brw-rw----+ 1 root cdrom 11, 0 Apr 28 19:26 sr0

    Alright, now I am confused!

  6. #5
    Linux Guru Segfault's Avatar
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    DVD's and CD's are not the same media, can your drive read a DVD? I guess not. Have you tried cleaning the lens.

  7. #6
    Yes, all freshly cleaned.

  8. #7
    Linux Guru Segfault's Avatar
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    Optical drive can fail to read certain media, it is not uncommon. I'm not sure how exactly, all I know different wavelengths are used for DVD, CD and Blueray. Whether it is the same laser or there are multiple lasers built into player - I do not know. If you are willing to research please post here. Regarding your issue, I'm sure it is a hardware problem, you may want to replace the drive.

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