Ubuntu Linux on Dell D630: the DVD

Getting the DVD drive working in Ubuntu Feisty on my Dell D630 laptop was one of the tasks that eluded me until a few minutes ago when I went searching again and found the solution.

At first I tried this and used the ide-generic driver. Linux recognised the drive, but as the page above says, it doesn’t give you any DMA modes. I tried the Bourne Supremacy, just to see if anything would happen, but Totem just sat there and the system became sluggish while the CD made some whirring noises. That’s a sure sign that DMA isn’t working!

That wasn’t going to be satisfactory, so I kept searching. This page and some of the Ubuntu forums suggest loading the “piix” and “ata_piix” modules. I tried to modprobe them without luck, but when I added “piix” to my /etc/modules and rebooted my DVD drive was found!

DMA is now enabled and everything works ok. Even got the film to play in Mplayer and it was very smooth.

# hdparm -i /dev/hda


Model=TSSTcorp DVD+/-RW TS-L632D, FwRev=DE04, SerialNo=
Config={ Fixed Removeable DTR10Mbs 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=on/off, tPIO={min:227,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

# hdparm /dev/hda

IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 1 (on)
readonly = 0 (off)
readahead = 256 (on)