On Mon, 2002-10-07 at 18:41, Samuel Flory wrote: > >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? > > > Red Hat is using a different version of the ide driver than most other > distros. It will refuse to turn on dma on certain chipsets. For > example RH 7.3-8.0 refuses to turn on dma on any Serverworks OSB4 > chipset. I'd advise using either 2.4.19, or 2.4.20pre8-ac3 if you want > to use dma.
Thank you for the info. I've been tweaking my install since last Friday and it is taking a lot of work to make a decent desktop out of it. The lack of video software, the lack of mp3 libs, the lack of ALSA, inability to use DMA with the stock kernel, the mysql/glibc problems. Oh well, I like the bluecurve art and it does to be improved over 7.3. Maybe 8.1 will be better for me. Best Regards, Keith -- LPIC-2, MCSE, N+ Sing blue silver Got spam? Get spastic http://spastic.sourceforge.net -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
