[Bugme-new] [Bug 8959] New: DVD writer not detected when ACPI is on

[bugme-daemon at bugzilla.kernel.org]

http://bugzilla.kernel.org/show_bug.cgi?id=8959

           Summary: DVD writer not detected when ACPI is on
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.23-rc4
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Other
        AssignedTo: acpi_other at kernel-bugs.osdl.org
        ReportedBy: lars.luthman at gmail.com


Most recent kernel where this bug did not occur: Unknown, tested with 2.6.18,
2.6.21, 2.6.22.5, it's in all of them.

Distribution: Debian Testing

Hardware Environment: Zepto Znote 6025WD, Intel Santa Rosa-based laptop (ICH8)

Software Environment: Debian Testing

Problem Description: The laptop has an internal DVD writer (a TSST SN-S082H)
which does not get detected by the kernel unless I boot it with acpi=off. If I
do that it appears as /dev/scd0 and is perfectly usable. I have reported this
to the Debian bug tracker, and they asked me to report it here, which I am now
doing after confirming it with the latest kernel from kernel.org. I also tried
the boot options suggested in the dmesg output (acpi_apic_instance=2,
acpi_osi=Linux, pci=routeirq), none of them made any difference.

Steps to reproduce: Boot kernel without any ACPI options - no DVD. Boot with
acpi=off - DVD detected and working.


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