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Joseph wrote: |
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>I have tried hdparm -d1 /dev/hdd |
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>but it is not accepting the it. I can not set DMA on this DVD |
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>I just called BenQ and they don't support Linux; so don't buy BenQ |
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>products as they don't support Linux. In example of DVD/writer it will |
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>become plain CD reader. |
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>Without DMA access the writing to CD will be very slow. |
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> |
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> |
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> |
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I have a Plextor DVD burner in a (MS) Windows machine. No matter what I |
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did, the drive would refuse DMA mode and would default to PIO mode. In |
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Windows, the setting is "use DMA, if available," so I guess it's more of |
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a suggestion than a setting. |
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I had put the DVD burner on it's own IDE controller to try to maximize |
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throughput when copying data from the hard disk. As it turns out, the |
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DVD burner will only run in DMA mode when it is a slave to a disk that |
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is already in DMA mode. By making the burner a slave to the hard disk, |
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DMA flipped on and all was well. |
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Maybe there is a Linux equivalent of that problem. |
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-- |
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"Pluralitas non est ponenda sine necessitate" - W. of O. |
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