MATSHITADVD-ROM SR-8176

[Bastien Nocera]

On Sun, 2002-02-03 at 15:52, AMANO Kazuhiro wrote:
>
> I'm in trouble with MATSHITA DVD-ROM SR-8176 drive on iBook2
>  under kernel-2.4.18-pre7-ben0.
>
> First problem is in audio CD play. I'm using xmms-cdread-0.14a, but
> I cannot get track list of CD and cannot play.
>
> To solve this problem, I made a tiny patch:
> --- linux/drivers/ide/ide-cd.c-ORIG	Mon Jan 28 20:20:31 2002
> +++ linux/drivers/ide/ide-cd.c	Sun Feb  3 22:03:42 2002
> @@ -2644,7 +2644,8 @@
>  	 * but they do support reading TOC & audio datas
>  	 */
>  	if (strcmp (drive->id->model, "MATSHITADVD-ROM SR-8187") == 0 ||
> -	    strcmp (drive->id->model, "MATSHITADVD-ROM SR-8186") == 0)
> +	    strcmp (drive->id->model, "MATSHITADVD-ROM SR-8186") == 0 ||
> +	    strcmp (drive->id->model, "MATSHITADVD-ROM SR-8176") == 0)
>  		CDROM_CONFIG_FLAGS (drive)->audio_play = 1;
>
>  #if ! STANDARD_ATAPI

Blimey! All this time this little patch was the thing missing ? Thanks a
lot for it !

> ---
>
> Second problem is in DVD-video play. I'm using xine-0.4.3 or
> vlc(videolan)-0.2.92, but I get only low performance.
>
> In /var/log/messages, some errors were reported:
> Feb  3 23:40:17 phaser kernel: hdb: DMA disabled
> Feb  3 23:40:17 phaser kernel: hdb: command error: status=0x51 { DriveReady SeekComplete Error }
> Feb  3 23:40:17 phaser kernel: hdb: command error: error=0x54
> Feb  3 23:40:17 phaser kernel: end_request: I/O error, dev 03:40 (hdb), sector 369232
>
> I can pass through this problem, by "hdparm -d1 -X34 /deb/hdb" to force
> Multiword DMA 2 Mode. But this hdparm command sometimes cause hung up.
>
> Both problem do not appear with ide-scsi driver.

Apparently there were some problems with the computers having both
drives on the same channel and DMA. Ben and Olaf probably know more
about it though.

Cheers

--
/Bastien Nocera
http://hadess.net

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