Reporting as requested by dmesg: [ 0.166001] ACPI: BIOS _OSI(Linux) query ignored [ 0.166017] ACPI: DMI System Vendor: KOHJINSHA CO.,LTD. [ 0.166026] ACPI: DMI Product Name: SH series [ 0.166035] ACPI: DMI Product Version: Not Applicable [ 0.166044] ACPI: DMI Board Name: S37 [ 0.166052] ACPI: DMI BIOS Vendor: Phoenix Technologies LTD [ 0.166062] ACPI: DMI BIOS Date: 08/30/07 [ 0.166070] ACPI: Please send DMI info above to linux-acpi@xxxxxxxxxxxxxxx [ 0.166082] ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@xxxxxxxxxxxxxxx Debian sid, kernel 2.6.25-2 . "acpi_osi=Linux" not attemped (what would "work better" ?). Side note: battery information is not available via /proc/acpi, though detected during boot: [ 14.638146] ACPI: Battery Slot [BAT0] (battery present) It was available in 2.6.24, disapeared since 2.6.25. -- Vincent Pelletier -- 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