Huh, that's weird: I rechecked the DMA setting for my DVD drive with hdparm and now it is turned off. I guess it can't take DMA? I hope I can play movies on this thing. Bob On Tue, 2002-10-08 at 21:06, Robert L. Cochran wrote: > I'm finding that if I set /etc/sysconfig/harddiskhdb to USE_DMA=1 hdparm > will show dma is still off for this device. > > However, if I rename harddiskhdb so it won't be recognized and then edit > modules.conf to add 'options ide-cd dma=1' then hdparm will show dma > being on for my drive. > > Drive identification: > > Oct 8 20:50:49 bobcp4 kernel: hdb: ASUS DVD-ROM E616, ATAPI CD/DVD-ROM > drive > Oct 8 20:51:18 bobcp4 kernel: hdb: ATAPI 48X DVD-ROM drive, 512kB > Cache, UDMA(33) > > I built this machine using an Asus P4T533 motherboard and an Intel > Pentium 4 2.8 gig cpu. > > Bob Cochran > Greenbelt, Maryland, USA > > > > On Tue, 2002-10-08 at 15:48, Jesse Keating wrote: > > On Tue, 8 Oct 2002 15:05:14 -0400 (EDT) > > "Robert P. J. Day" <rpjday@mindspring.com> wrote: > > > > # ummmmm ... i'm pretty sure that, even though i had hdb=ide-scsi > > # automatically added to grub.conf, that drive did *not* have DMA > > # enabled until i did it explicitly. can anyone answer this > > # definitively? > > > > The default is to enable DMA on harddisks, but not on CD-ROM devices. > > You will have to manually edit either /etc/modules.conf (options > > ide-cd dma=1) or /etc/sysconfig/harddiskhdX where X is your CD-ROM > > device, hardiskhdc for /dev/hdc. > > > > -- > > Jesse Keating > > j2Solutions.net > > Mondo DevTeam (www.mondorescue.org) > > > > Was I helpful? Let others know: > > http://svcs.affero.net/rm.php?r=jkeating > > > > > > > > -- > > Psyche-list mailing list > > Psyche-list@redhat.com > > https://listman.redhat.com/mailman/listinfo/psyche-list > > > > > > > -- > Psyche-list mailing list > Psyche-list@redhat.com > https://listman.redhat.com/mailman/listinfo/psyche-list >
