Comment 48 for bug 228624

I have a similar problem with a Liteon DVD reader that works and a Pioneer DVD writer that does not, after a fresh install of Hardy. Both were working in Gutsy.

hdparm -i /dev/scd0

gives

======
/dev/scd0:

 Model=LITEON DVD-ROM LTD-165H , FwRev=CH0J , 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 udma3
 AdvancedPM=no
 Drive conforms to: Unspecified: ATA/ATAPI-5

 * signifies the current active mode
======

and

hdparm -i /dev/scd1

gives

======
/dev/scd1:

 Model=PIONEER DVD-RW DVR-110 , FwRev=1.22 , SerialNo=
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=13395, BuffSize=64kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO={min:240,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 udma3 udma4
 AdvancedPM=no
 Drive conforms to: Unspecified: ATA/ATAPI-2,3,4,5

 * signifies the current active mode
======

Kernel is 2.6.24-19-generic and the workaround line in /boot/grub/menu/lst is

# defoptions=quiet splash all_generic_ide=1

But that does not render the Pioneer DVD writer functional. Indeed, even an audio CD cannot be detected on the Pioneer DVD writer, although it is detected and playable on the Liteon.

Interestingly, on booting, I do not see a menu of choices any more even though I also have the 2.6.24-16 kernel.

So, is there something even more fundamentally wrong?

Any pointers most appreciated.

I am happy to post more diagnostic information if told what command to execute.

Many thanks.

Chandra