Le 21/03/2016 22:47, Ed Greshko a écrit : > > > On 03/22/16 05:40, François Patte wrote: >> Le 21/03/2016 15:11, Tim a écrit : >>> Allegedly, on or about 18 March 2016, François Patte sent: >>>> I am facing a strange problem with xfce configuration: when I put a >>>> commercial video dvd in the drive: no icon appears on the desktop. and >>>> there are error messages in /var/log/messages, like: >>>> >>>> blk_update_request: I/O error, dev, sr0 sector 9137664 >>>> >>>> buffer I/O error on dev sr0, logical block 1142208 async page read >>>> >>>> But, I can play the video with vlc without any problem.... >>>> >>>> If I mount this dvd (say: mount /dev/sr0 /media), no problem, no error >>>> reported.... >>>> >>>> When I umount the dvd (umount /media), an icon appears on the desktop >>>> and immediately disappears..... >>>> >>>> This problem does not occur with dvd I recorded myself, nor with any >>>> other removable media (usb sticks or drives). >>> An educated guess: This would be an encrypted, deliberately-faulted >>> (some discs have deliberate errors that confuse the hell out of >>> computers, but standalone DVD players will simply bypass), or some other >>> kind of copyguarded DVD, some of which are a major pain to do anything >>> with on a Windows OS PC. Even my old dreaded Windows installation would >>> refuse to even load some DVDs to look at the files in the file browser, >>> never mind trying to play them. Your VLC installation *may* have >>> support for handling such DVDs in a different manner. >>> >>> Of course, it could just be a bad disc (you don't mention whether it's >>> just one problem disc), or it may need cleaning, or your drive may need >>> cleaning. >> This problem occurs with 2 machines (laptop) on which I installed fedora >> 23. Problem does not occur on a third computer running fedora 21. On one >> of the laptops where previously installed a debian, and no problem occured. >> >> It is not a vlc problem; vlc mounts and reads these dvd without any >> problem, I think that it is an xfce problem, but on my fedora 21 I have >> the same version of xfce as on laptops with fedora 23. > > Is libdvdcss (not a fedora package) installed on your working systems? Of course! If not vlc does not read dvd. But, is libdvdcss is reponsible for the display of dvd icons? I am wondering if there is not a bug there: I took libdvdcss from remi repo (livna was out of order at that time). -- François Patte UFR de mathématiques et informatique Laboratoire CNRS MAP5, UMR 8145 Université Paris Descartes 45, rue des Saints Pères F-75270 Paris Cedex 06 Tél. +33 (0)1 8394 5849 http://www.math-info.univ-paris5.fr/~patte
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