Ok, I think I have the fix for this. from the release notes:
DMA is disabled on CD-ROM drives in this release in a different but more reliable way than previously. If you are sure that your CD-ROM drive is capable of IDE DMA, place the following line in the /etc/modules.conf options ide-cd dma=1 you will then be able to turn DMA on for your cd Keith Winston wrote: >I have an IDE DVD drive (/dev/hdc) and I would like to turn on DMA to >speed up playback of movies in ogle. > >In SuSE 8.0, I am able to use: >hdparm -d1 -X34 /dev/hdc >to turn on DMA and it makes a huge difference in playback frame rates. > >When I use this command (as root) in Red Hat 8.0, I get an error... >/dev/hdc: > Setting using_dma to 1 (on) > HDIO_SET_DMA failed: Operation not permitted > using_dma = 0 (off) > >I verified that the device was owned by root and rw for root. Does >anyone know why this doesn't work? > >Best Regards, >Keith > > -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list