Hello, I have a 8.04 install on a core 2 duo 1gb ram computer. DMA won't enable on any of my hard drives.
Here is what i run to enable dma:
sudo hdparm -d1 /dev/sdc
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Inappropriate ioctl for device
HDIO_GET_DMA failed: Inappropriate ioctl for device
This is a seagate 500gb ide drive hooked up as the primary slave.
As a result, video playback is not too great and very choppy. Also, file transfers are pretty slow...not horribly slow, but slower than when i was with ubuntu feisty.