On Thu, Dec 12, 2002 at 10:01:50PM +0000, BenEBoy wrote:
assume therefore that the mobo/dvd drive can't use DMA under linux (sorry,
I have a current problem with my DVD drive that it can use DMA fine, if you are either watching a Video DVD or mounting/reading from a CD-Rom. As soon as you try to read a data DVD though you get lots of error messages in the dmesg log, disabling dma you can then read from the DVD data disc. Anyhow what is your motherboard chipset? (type lspci to get a list of hardware on the motherboard) and you can find out the DVD drive with a cat /proc/ide/hdX/model (where X is the ide device name)
Currently I think that my problems may be related to the motherboard chipset being not a very good one on this machine (an Ali M5229) but I have my via motherboard back from repair soon and am going to try again with that.
Adam