View Full Version : [ubuntu] Ubuntu won't read encrypted DVD

April 18th, 2011, 06:52 PM
Hi all, I've tried everything in the forums to get my DVD drive to read encrypted dvds including:
1. Install deCSS
2. Install and set region
3. Install restricted formats
4. Change BIOS setting from AHCI to IDE mode

Nothing seems to work. I get no dmesg output. CDs, unencrypted DVDs and data CDs and data DVDs work just fine.
sudo lshw -C disk gives

description: DVD-RAM writer
product: DVDRAM GSA-T20N
vendor: HL-DT-ST
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/cdrom
logical name: /dev/cdrw
logical name: /dev/dvd
logical name: /dev/dvdrw
logical name: /dev/scd0
logical name: /dev/sr0
version: WP03
capabilities: removable audio cd-r cd-rw dvd dvd-r dvd-ram
configuration: ansiversion=5 status=ready
physical id: 0
logical name: /dev/cdrom

uname -r gives

The dmesg startup logs show
[ 0.686044] ACPI Error (psargs-0359): [CDW1] Namespace lookup failure, AE_NOT_FOUND
[ 0.686052] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0._OSC] (Node f701f270), AE_NOT_FOUND
[ 1.054657] scsi 0:0:0:0: CD-ROM HL-DT-ST DVDRAM GSA-T20N WP03 PQ: 0 ANSI: 5
[ 1.058058] sr0: scsi3-mmc drive: 31x/31x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1.058062] Uniform CD-ROM driver Revision: 3.20
[ 1.058195] sr 0:0:0:0: Attached scsi CD-ROM sr0
[ 1.058266] sr 0:0:0:0: Attached scsi generic sg0 type 5

sudo hdparm -i /dev/scd0 gives:


Model=HL-DT-ST DVDRAM GSA-T20N, FwRev=WP03, SerialNo=KZ17C705226
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 *udma2
Drive conforms to: unknown: ATA/ATAPI-4,5,6,7

* signifies the current active mode