Hi Guys,

First, let me say that I did search this problem on Google. I found a
somewhat relevant solution, but before I try it, I thought I would post
here.

The problem is jerky playback of the dvd when I try to play it using
kaffeine. The laptop on which I am trying to play the DVD is a Dell
Inspiron M1710. It is less than a year old (purchased late April 2006).

One of the things the post said was to check that dma was enabled by
running hdparm -I /dev/hdc. I did that and this is the output:

/dev/hdc:

ATAPI CD-ROM, with removable media
  Model Number:     TSSTcorp DVD+/-RW TS-L632D        
  Serial Number:  
  Firmware Revision: DE04  
Standards:
  Likely used CD-ROM ATAPI-1
Configuration:
  DRQ response: 50us.
  Packet size: 12 bytes
Capabilities:
  LBA, IORDY(can be disabled)
  DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2
     Cycle time: min=120ns recommended=120ns
  PIO: pio0 pio1 pio2 pio3 pio4
     Cycle time: no flow control=227ns IORDY flow control=120ns
Commands/features:
  Enabled   Supported:
HW reset results:
  CBLID- below Vih
  Device num = 0


Another thing this post said was that the person switched from the
scsi/sata system for the drive to the deprecated ide/sata model.

Admittedly, I haven't rebuild the kernel in a while. I'm running
2.6.21-gentoo-r4. This was because when I tried to upgrade to the next
stable version of the kernel after 2.6.21-gentoo-r4, it wouldn't
recognize my hard drive as a sata, so I went back to a kernel version
that I knew worked. Do you think a kernel upgrade would help solve the
problem.

BTW I have 2 gig of memory on this laptop, so the issue shouldn't be
memory related.

Any ideas? Thanks in advance for the assistance! :-)

Regards,

Colleen

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