After recent updates, same problem occurs here on a lenovo thinkpad
T61p, with original DVD's. Booting with all_generic_ide=1 does not help
and is supported by the fact that udma2 is used already.
hdparm -i /dev/cdrom:
Model=Optiarc, FwRev=1.D1, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=yes, 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
AdvancedPM=no
Dmesg shows repeated:
Jan 3 14:22:12 T61p kernel: [ 128.331569] sr 3:0:0:0: [sr0] Result:
hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jan 3 14:22:12 T61p kernel: [ 128.331581] sr 3:0:0:0: [sr0] Sense Key :
Illegal Request [current]
Jan 3 14:22:12 T61p kernel: [ 128.331591] sr 3:0:0:0: [sr0] Add. Sense: Read
of scrambled sector without authentication
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DVD writer not working since hardy upgrade
https://bugs.launchpad.net/bugs/228624
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