[gentoo-user] DVD Playback Problem

[gentoo-user] DVD Playback Problem

[CJoeB]

Hi Guys,

First, let me say that I did search this problem on Google.  I found a 
somewhat relevant solution, but before I try it, I thought I would post 
here.

The problem is jerky playback of the dvd when I try to play it using 
kaffeine.  The laptop on which I am trying to play the DVD is a Dell 
Inspiron M1710.  It is less than a year old (purchased late April 2006).

One of the things the post said was to check that dma was enabled by 
running hdparm -I /dev/hdc.  I did that and this is the output:

/dev/hdc:

ATAPI CD-ROM, with removable media
    Model Number:       TSSTcorp DVD+/-RW TS-L632D             
    Serial Number:     
    Firmware Revision:  DE04   
Standards:
    Likely used CD-ROM ATAPI-1
Configuration:
    DRQ response: 50us.
    Packet size: 12 bytes
Capabilities:
    LBA, IORDY(can be disabled)
    DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2
         Cycle time: min=120ns recommended=120ns
    PIO: pio0 pio1 pio2 pio3 pio4
         Cycle time: no flow control=227ns  IORDY flow control=120ns
Commands/features:
    Enabled    Supported:
HW reset results:
    CBLID- below Vih
    Device num = 0


Another thing this post said was that the person  switched from the 
scsi/sata system for the drive to the deprecated ide/sata model.

Admittedly, I haven't rebuild the kernel in a while.  I'm running 
2.6.21-gentoo-r4.  This was because when I tried to upgrade to the next 
stable version of the kernel after 2.6.21-gentoo-r4, it wouldn't 
recognize my hard drive as a sata, so I went back to a kernel version 
that I knew worked.  Do you think a kernel upgrade would help solve the 
problem.

BTW  I have 2 gig of memory on this laptop, so the issue shouldn't be 
memory related.

Any ideas?  Thanks in advance for the assistance!  :-)

Regards,

Colleen

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Re: [gentoo-user] DVD Playback Problem

[Florian Philipp]

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On Fri, 2008-03-21 at 08:55 -0500, CJoeB wrote:
> Hi Guys,
> 
> First, let me say that I did search this problem on Google.  I found a 
> somewhat relevant solution, but before I try it, I thought I would post 
> here.
> 
> The problem is jerky playback of the dvd when I try to play it using 
> kaffeine.  The laptop on which I am trying to play the DVD is a Dell 
> Inspiron M1710.  It is less than a year old (purchased late April 2006).
> 
> One of the things the post said was to check that dma was enabled by 
> running hdparm -I /dev/hdc.  I did that and this is the output:
> 
> /dev/hdc:
> 
> ATAPI CD-ROM, with removable media
>     Model Number:       TSSTcorp DVD+/-RW TS-L632D             
>     Serial Number:     
>     Firmware Revision:  DE04   
> Standards:
>     Likely used CD-ROM ATAPI-1
> Configuration:
>     DRQ response: 50us.
>     Packet size: 12 bytes
> Capabilities:
>     LBA, IORDY(can be disabled)
>     DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2
>          Cycle time: min=120ns recommended=120ns
>     PIO: pio0 pio1 pio2 pio3 pio4
>          Cycle time: no flow control=227ns  IORDY flow control=120ns
> Commands/features:
>     Enabled    Supported:
> HW reset results:
>     CBLID- below Vih
>     Device num = 0
> 
> 
> Another thing this post said was that the person  switched from the 
> scsi/sata system for the drive to the deprecated ide/sata model.
> 
> Admittedly, I haven't rebuild the kernel in a while.  I'm running 
> 2.6.21-gentoo-r4.  This was because when I tried to upgrade to the next 
> stable version of the kernel after 2.6.21-gentoo-r4, it wouldn't 
> recognize my hard drive as a sata, so I went back to a kernel version 
> that I knew worked.  Do you think a kernel upgrade would help solve the 
> problem.
> 
> BTW  I have 2 gig of memory on this laptop, so the issue shouldn't be 
> memory related.
> 
> Any ideas?  Thanks in advance for the assistance!  :-)
> 
> Regards,
> 
> Colleen
> 
> -- 

That a kernel recognizes a sata-drive as pata usually happens if there
are generic drivers present in the kernel. Deselect everything "generic"
and you should be fine.

Then you should try mplayer instead of kaffeine to be sure it's not
software related.

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