Grant Apgar wrote: > Hello Everyone, > > Just recently I built a linux computer. The following compnents > include: > > Red Hat 8.0 > Pentium 4 1.6Ghz > PNY Geforce4 Ti 4200 > 256MB DDR Ram > Onboard Sis Sound > Western Digital 60GB 7200rpm Drive > Creative Ovation 16X DVD-ROM > Shuttle Case and Motherboard > Ogle DVD Player > > The problem is when any Dvd movie plays it gets choppy. It plays for > 2-3 seconds then hangs for 1 sec. While it hangs the green light goes > brightens. Then dims letting the movie continue. Is this a problem with > SCSI emulation? Not enought memory? A buffer problem? It's like > streaming a movie and the buffer overflows. > > P.S. On a Sony VIAO FXA36 the same OS and Ogle works fine, but the dvd > is SCSI.
The problem is probably that your DVD drive is stuck in PIO mode. I know RedHat's kernel has the only enable DMA on disks option set, so DMA won't get enabled on ATAPI devices. I know there's a kernel option to work around this, or you can use hdparm -d1 /dev/hdX. However this may not work if you are using SCSI emulation (why? is this also a burner?) --MonMotha
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