http://bugzilla.kernel.org/show_bug.cgi?id=1752
[EMAIL PROTECTED] changed:
What |Removed |Added
----------------------------------------------------------------------------
Owner|[EMAIL PROTECTED] |[EMAIL PROTECTED]
Status|ASSIGNED |NEW
------- Additional Comments From [EMAIL PROTECTED] 2006-01-28 01:39 -------
Anybody have ACPI events on a Dell 5100 or 5150 working?
If I boot the kernel with "noapic" "acpi_balance_irq" "acpi_irq_isa=10,11"
then USB is forced to share IRQ9 with ACPI. Under these conditions
if I have USB interrupt activity (say, wiggling the USB mouse),
then I am able to get ACPI events (/etc/init.d/acpid stop;
cat /proc/acpi/event) including power button, sleep button (Fn + ESC)
AC/DC switch and battery status.
This shows that the ACPI devices are indeed provoking events,
and that the kernel is indeed ready to handle them --
and that the missing link is the SCI interrupt itself.
Looking in the ICH4 PCI config space, in the LPC bridge
(DID 0x24cc) at offset 0x44, ACPI_CNTL = 0x10 -- the 1
means ACPI is enabled, and the bottom three bits 0 means
that the SCI is programmed for IRQ9 where the kernel
expects it to be.
5150 BIOS A38, linux-2.6.16-rc1
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