6.0-R && DMA with Intel ICH6 UDMA100/SATA150 controller

[Ted Mittelstaedt]

If you play a movie file from the hard disk does the same thing happen?

Is this full screen or not?

What is the laptop make and model?

Ted

>-----Original Message-----
>From: owner-freebsd-questions at freebsd.org
>[mailto:owner-freebsd-questions at freebsd.org]On Behalf Of guru at Sisis.de
>Sent: Monday, January 02, 2006 10:37 PM
>To: freebsd-questions at freebsd.org
>Subject: 6.0-R && DMA with Intel ICH6 UDMA100/SATA150 controller
>
>
>
>Hi,
>
>I've this configuration for the DVD device in my notebook:
>
>$ fgrep 'Jan  3' messages | egrep 'ata|acd0'
>Jan  3 07:05:23 rebelion kernel: atapci0: <Intel ICH6 UDMA100
>controller> port
>0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x14c0-0x14cf at device 31.1 on pci0
>Jan  3 07:05:23 rebelion kernel: ata0: <ATA channel 0> on atapci0
>Jan  3 07:05:23 rebelion kernel: ata1: <ATA channel 1> on atapci0
>Jan  3 07:05:23 rebelion kernel: atapci1: <Intel ICH6 SATA150
>controller> port
>0x14f0-0x14f7,0x14e4-0x14e7,0x14e8-0x14ef,0x14e0-0x14e3,0x14d0-0
>x14df mem 0xc8000c00-0xc8000fff irq 19 at device 31.2 on pci0
>Jan  3 07:05:23 rebelion kernel: ata2: <ATA channel 0> on atapci1
>Jan  3 07:05:23 rebelion kernel: ata3: <ATA channel 1> on atapci1
>Jan  3 07:05:23 rebelion kernel: ata4: <ATA channel 2> on atapci1
>Jan  3 07:05:23 rebelion kernel: ata5: <ATA channel 3> on atapci1
>Jan  3 07:05:23 rebelion kernel: acd0: DVDR
><MATSHITAUJ-841Db/1.00> at ata0-master UDMA33
>Jan  3 07:05:23 rebelion kernel: ad4: 76319MB <Seagate
>ST98823AS 3.03> at ata2-master SATA150
>
>and DMA is activated:
>
>$ sysctl -a | fgrep _dma
>hw.ata.ata_dma: 1
>hw.ata.atapi_dma: 1
>$
>
>but playing a movie from DVD with mplayer gives these breaks and jumps
>as if DMA is not active; any hints?
>
>Thx
>
>	matthias
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