kern/146464: DVD device unusable with ahci(4)

[Demelier David]

>Number:         146464
>Category:       kern
>Synopsis:       DVD device unusable with ahci(4)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon May 10 12:00:14 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Demelier David
>Release:        8.0-STABLE
>Organization:
>Environment:
FreeBSD Melon.malikania.fr 8.0-STABLE FreeBSD 8.0-STABLE #0: Sun May  9 22:46:23 CEST 2010     root at Melon.malikania.fr:/usr/obj/usr/src/sys/Melon  amd64
>Description:
Cannot use my DVD device when I set my BIOS interface to ahci (HP Probook 4510s), it seems to timeout as you can see with mplayer :

   libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000150
   libdvdread: Error cracking CSS key for /VIDEO_TS/VIDEO_TS.VOB (0x00000150)
   libdvdread: Elapsed time 10

(in dmesg)
   acd0: FAILURE - SEND_KEY timed out
   acd0: FAILURE - SEND_KEY timed out
   acd0: FAILURE - SEND_KEY timed out

I sent an email to freebsd-stable@

http://lists.freebsd.org/pipermail/freebsd-stable/2010-May/056697.html
>How-To-Repeat:
Set the interface to ahci (and not ide) on a HP Probook 4510s and try anything related to the dvd device.
>Fix:
For the moment for HP Probook users, go to the BIOS and switch from AHCI to IDE interface.

>Release-Note:
>Audit-Trail:
>Unformatted: