Hi all, Ok, so I did some changes to my system which _may_ have resolved my issue. I haven't seen any unexpected shutdowns in the last couple of days while running with ACPI enabled. 1) I've changed the harddisk - not that the old one were failing (at least not according to smart :-) but I needed the extra capacity. I went from a Samsung to a Western Digital disk (120GB -> 250 GB :-) 2) I looked through the dmesg output and found the following two acpi notes: [ 0.000000] ACPI: BIOS bug: multiple APIC/MADT found, using 0 [ 0.000000] ACPI: If "acpi_apic_instance=2" works better, notify linux-acpi@xxxxxxxxxxxxxxx So, I set acpi_apic_instance=2 and the signature is: [ 0.000000] DMI present. [ 0.000000] ACPI: RSDP signature @ 0xC00F77B0 checksum 0 [ 0.000000] ACPI: RSDP 000F77B0, 0014 (r0 PTLTD ) [ 0.000000] ACPI: RSDT 5F696B3B, 004C (r1 STD STANDARD 6040000 LTP 0) [ 0.000000] ACPI: FACP 5F69CCAA, 0074 (r1 INTEL CALISTGA 6040000 LOHR 5A) [ 0.000000] ACPI: DSDT 5F69821C, 4A8E (r1 UW____ FUW_____ 6040000 INTL 20050624) [ 0.000000] ACPI: FACS 5F69DFC0, 0040 [ 0.000000] ACPI: APIC 5F69CD1E, 0068 (r1 INTEL CALISTGA 6040000 LOHR 5A) [ 0.000000] ACPI: HPET 5F69CD86, 0038 (r1 INTEL CALISTGA 6040000 LOHR 5A) [ 0.000000] ACPI: MCFG 5F69CDBE, 003C (r1 INTEL CALISTGA 6040000 LOHR 5A) [ 0.000000] ACPI: APIC 5F69CDFA, 0068 (r1 PTLTD APIC 6040000 LTP 0) [ 0.000000] ACPI: SLIC 5F69CE62, 0176 (r1 SRD STANDARD 6040000 LTP 0) [ 0.000000] ACPI: BOOT 5F69CFD8, 0028 (r1 PTLTD $SBFTBL$ 6040000 LTP 1) [ 0.000000] ACPI: SSDT 5F697BCD, 064F (r1 SataRe SataPri 1000 INTL 20050624) [ 0.000000] ACPI: SSDT 5F69753B, 0692 (r1 SataRe SataSec 1000 INTL 20050624) [ 0.000000] ACPI: SSDT 5F696B87, 04F6 (r1 PmRef CpuPm 3000 INTL 20050624) 3) Further down the dmesg log I had: [ 17.300227] ACPI: BIOS _OSI(Linux) query ignored [ 17.300229] ACPI: DMI System Vendor: Standard [ 17.300231] ACPI: DMI Product Name: L51IIX [ 17.300232] ACPI: DMI Product Version: [ 17.300233] ACPI: DMI Board Name: L51IIX [ 17.300235] ACPI: DMI BIOS Vendor: Standard [ 17.300236] ACPI: DMI BIOS Date: 01/12/2007 [ 17.300237] ACPI: Please send DMI info above to linux-acpi@xxxxxxxxxxxxxxx [ 17.300239] ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@xxxxxxxxxxxxxxx ... so I added acpi_osi=Linux and now get: [ 0.000000] Misrouted IRQ fixup and polling support enabled [ 0.000000] This may significantly impact system performance [ 0.000000] ACPI: Added _OSI(Linux) Don't know aout the "This may significantly impact system performance" thing - the system seems stable. Which is what I care about! Best regards, Brian -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
