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I've seen this problem on three different hosts, two of which play DVDs just fine on Slackware 14.1.
I have libdvdcss 1.4.0 installed.
VLC will read the title and length of the movie but will gracefully decline to play it. Xine will sometimes run the copyright warnings before giving up. Other times it will tell me I don't have enough rights to read or the source doesn't contain data. The current user has read and write permissions on /dev/sr0 through the cdrom group.
It's not a hardware problem. I get the same problem with a particular DVD, a disc that reads without any errors on 14.1 on the exact same hardware. All other DVDs I have seem to read fine.
from dmesg upon inserting the disc:
Code:
[ 821.664283] sr 0:0:1:0: [sr0] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[ 821.664289] sr 0:0:1:0: [sr0] tag#0 Sense Key : 0x5 [current]
[ 821.664293] sr 0:0:1:0: [sr0] tag#0 ASC=0x6f ASCQ=0x3
[ 821.664297] sr 0:0:1:0: [sr0] tag#0 CDB: opcode=0x28 28 00 00 00 04 00 00 00 02 00
[ 821.664300] blk_update_request: I/O error, dev sr0, sector 4096
[ 821.747275] sr 0:0:1:0: [sr0] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08
[ 821.747281] sr 0:0:1:0: [sr0] tag#0 Sense Key : 0x5 [current]
[ 821.747284] sr 0:0:1:0: [sr0] tag#0 ASC=0x6f ASCQ=0x3
[ 821.747288] sr 0:0:1:0: [sr0] tag#0 CDB: opcode=0x28 28 00 00 00 04 01 00 00 01 00
[ 821.747290] blk_update_request: I/O error, dev sr0, sector 4100
[ 821.747293] Buffer I/O error on dev sr0, logical block 1025, async page read
Have you checked that the media tab points to the dvd device. I had to change them ( device used for DVD access and raw device set up for DVD access) to /dev/sr0. Even though there are links from dvd -> sr0
I've now gotten DVD playback for a number of DVDs on Slackware 14.2. Still some DVDs fail consistently in the same way while working on Slackware 14.1. My best guess right now is a problem with libdvdcss on Linux kernel versions above 4.0.
Distribution: Slackware64-current with "True Multilib" and KDE4Town.
Posts: 9,043
Rep:
I get a little flicker with VLC, but that has been going on with the last couple of versions of VLC.
SMPlayer, a front end for MPlayer, works perfectly.
I've tried the problematic DVDs with recent versions of Ubuntu and Fedora, both with kernel versions of 4.4+, and they encounter the same problem. I get playback with these DVDs on kernel version 3. The solution is probably outside the scope of this forum.
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