[MPlayer-users] Problem with playing mpeg2 files smoothly - Kernel upgrade

[Erik Slagter]

> I think that there must be a problem with the Kernel when trying to use
> hdparm since I am getting:
> ---------------------------------
> # hdparm -d1 /dev/hda
> 
> /dev/hda:
>  setting using_dma to 1 (on)
>  HDIO_SET_DMA failed: Operation not permitted
>  using_dma    =  0 (off)
> ----------------------------------

Try it logged in as root...