RE: ACPI power-off doesn't work on Asus CUV4X (VIA Apollo 133)

[Grover, Andrew]

> From: Ingo Oeser [mailto:[e-mail]]
> > > 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