> From: Ingo Oeser [mailto:[EMAIL PROTECTED]] > > > As i recompiled 2.4.2-ac20 with ACPI support > > > the system cannot switch itself off. > > > I get a message "Couldn't switch to S5" if > > > try to call reboot(2). > > > At load it shows that the mode is supported. > > > > Same with AMR P6BAP-AP and P6VAP-AP () mainboards. > > #define APCI_DEBUG 1 has NO effect on verbosity of messages :-( The ACPI version in the kernel has debug messages stripped, for historical reasons. There is a non-stripped version available at http://developer.intel.com/technology/iapc/acpi/downloads.htm but this also includes other new code, which may or may not be what you want. > The BIG Problem is: This is an embedded machine, so I cannot > attach all the funny debug tools. The most thing I can do is > printk and evtl. ikdb. I have only 16MB flash disk on this > machine and it is full already :-( Either try the version on the website, or make this change and see if it helps: drivers/acpi/hardware/hwsleep.c (at the bottom) : acpi_hw_register_write(ACPI_MTX_LOCK, PM1_a_CONTROL, PM1_acontrol); acpi_hw_register_write(ACPI_MTX_LOCK, PM1_b_CONTROL, PM1_bcontrol); acpi_hw_register_write(ACPI_MTX_LOCK, PM1_CONTROL, <-- remove these (1 << acpi_hw_get_bit_shift (SLP_EN_MASK))); <-- Regards -- Andy - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/