DMA DVD/CD-ROM Issues

[Harold Helmich]

Having problems getting my DVD-ROM to work using DMA. I have a Toshiba SD-M1212 DVD-Rom set up as a slave to my CD-RW. My CD-RW has DMA in Linux but the DVD-ROM. Both have DMA set in the bios. Somewhere the DVD-ROM DMA setting is getting turned off. I have tried to turn on DMA using hdparm -d1 /dev/hdd. I get an error message syaing operation not permitted. However, if add hdd=ide-scsi as kernel parm then I DMA is set. However, players do not see the drive correctly.

Anyone have clues where to start looking to solve this issue?

Thanks in advance,
Harry





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