Hi Pavel,
æ äï2010-09-27 æ 16:17 +0200ïPavel Troller æåï
> Hi Joey,
>
> > Hi Pavel,
> >
> > ??? ??????2010-09-25 ??? 14:44 +0200???Pavel Troller ?????????
> > > 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
> >
> > In _QB7 and _QB8 have the following infinite while loop:
> >
> > If (_OSI ("Windows 2006"))
> > {
> > If (LEqual (^^^P0P2.VGA.VVID, 0x10DE))
> > {
> > Store (One, ^^^P0P2.VGA.MSIB)
> > Store (Zero, ^^^P0P2.VGA.MSIM)
> > Store (One, ^^^P0P2.VGA.MSIE) /* defalut
> > is one */
> > Sleep (0x0A)
> > Notify (^^^P0P2.VGA, 0xCB)
> > While (^^^P0P2.VGA.MSIE) /* infinite */
> > {
> > Sleep (0x0A)
> > }
> > }
> > }
> >
> > The MSIE is just a named object declared in VGA device but it's not any
> > hardware register. So, kernel's acpi parser is right, it's a infinite
> > loop.
>
> I've seen it, but I was not sure, whether the MSIE object could change its
> state back to zero by some external event... But in Linux, it definitely
> doesn't.
>
There have a NVIF method in VGA device, it will set MSIE to zero. I
thought it call by Nvida vista driver, but have don't know how to verify
it.
The attached is the patch I add MSI GX723 DMI information to blacklist.
If possible, could you please test it?
I just simply check your DSDT, please make sure the following features
work fine after you applied the attached blacklist patch:
- brightness up/down hotkey
- switch to external monitor
- unplug ac-power event
- battery information
Thank's a lot!
Joey Lee
>From 580c3c8d894121e82dfbe6c2fdb7b320b4abd85d Mon Sep 17 00:00:00 2001
From: Lee, Chun-Yi <jlee@xxxxxxxxxx>
Date: Wed, 29 Sep 2010 00:30:08 +0800
Subject: [PATCH] DMI to disable Vista compatibility on MSI GX723 Notebook
The brightness control hotkey don't work with Vista compatibility
, because MSI GX723 included a infinite while loop in DSDT when
brightness control hotkey pressed.
MSI GX723 used Nvida video card, the infinite while loop must be a
workaround with Nvidia's Vista driver.
Signed-off-by: Lee, Chun-Yi <jlee@xxxxxxxxxx>
---
drivers/acpi/blacklist.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 2bb28b9..3e644d8 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -226,6 +226,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
},
},
{
+ .callback = dmi_disable_osi_vista,
+ .ident = "MSI GX723",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
+ },
+ },
+ {
.callback = dmi_disable_osi_win7,
.ident = "ASUS K50IJ",
.matches = {
--
1.6.0.2
