Hi!
I'm a fresh owner of GX723 notebook by MSI. It looks relatively
linux-friendly, but I've found some ACPI-related issues.
1) Booting 2.6.35.5 kernel natively, the Fn keys (brightness control,
video switching) are non-functional and even a single keypress causes,
that ACPI events (like AC adapter status changes or lid switch operation) are
not generated anymore. After a while (about 10 minutes), the following
lines pop to the system log:
Sep 25 13:53:18 beam kernel: ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.SBRG.EC__._QB7] (Node ffff88013fc1ff00), AE_AML_INFINITE_LOOP
Sep 25 13:42:23 beam kernel: ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.SBRG.EC__._QB8] (Node ffff88013fc1ff20), AE_AML_INFINITE_LOOP
I've dumped and disassembled the DSDT and looked at the above methods. What
felt into my eyes immediately, were _OSI("Windows 2006") calls and then
conditional code execution in these methods. So my next boot was with
acpi_osi="!Windows 2006" and it fully repaired this problem. Now, the
brightness keys really do regulate brightness (causing no acpi events),
the VGA switcher generates the VGA ACPI event and of course other ACPI
events are being generated without any problems.
So, it would be good to either look at the problem and fix it in Linux,
or put vista to the blacklist for this notebook type (in the case it is the
DSDT bug).
2) Even with vista string disabled, the following warning is still printed
to the log on every boot:
Sep 25 14:09:03 beam kernel: ACPI Warning for \_SB_.PCI0.P0P2.VGA_.MXMI: Excess arguments - needs 1, found 2 (20100428/nspredef-319)
Sep 25 14:09:03 beam kernel: ACPI Warning for \_SB_.PCI0.P0P2.VGA_.MXMS: Excess arguments - needs 1, found 2 (20100428/nspredef-319)
It looks like a DSDT bug. I hope it is harmless.
I've flashed the BIOS to the latest available (1.11).
The DSDT table is attached.
With regards, Pavel.
Attachment:
msi-gx723-dsdt.bin.gz
Description: application/gunzip
