Messages in this thread | | | Date | Sun, 19 Feb 2006 21:18:52 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] Work around asus_acpi driver oopses on Samsung P30s and the like due to the ACPI implicit return |
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Alex Riesen <fork0@users.sourceforge.net> wrote: > > FWIW, I need the patch below to stop ACPI freezing at boot on Asus S1300N. > There is a BIOS update from Asus, but no mention of any fixes in ACPI, > so as I have no means to backup the BIOS in case something goes wrong > I didn't do the update.
I think it'd be worth trying the update anyway please. Normally those updating programs are pretty careful to not give you a dead box.
> I found out (by putting printks in the initialization code) that a > call to INI (whatever it is) of VGA_ (whatever this is) immediately > freezes the notebook and the fan goes on shortly afterwards. >
Is this a recent problem, or did earlier 2.6.x kernels also fail?
> diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c > index f4c8775..d415b30 100644 > --- a/drivers/acpi/asus_acpi.c > +++ b/drivers/acpi/asus_acpi.c > @@ -352,8 +352,8 @@ static struct model_data model_conf[END_ > .lcd_status = "\\BKLT", > .brightness_set = "SPLV", > .brightness_get = "GPLV", > - .display_set = "SDSP", > - .display_get = "\\ADVG"} > + /* .display_set = "SDSP", > + .display_get = "\\ADVG" */} > }; > > /* procdir we use */ > diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c > index 9f929e4..79fa2ec 100644 > --- a/drivers/acpi/namespace/nsinit.c > +++ b/drivers/acpi/namespace/nsinit.c > @@ -384,7 +384,12 @@ acpi_ns_init_one_device(acpi_handle obj_ > pinfo.parameters = NULL; > pinfo.parameter_type = ACPI_PARAM_ARGS; > > - status = acpi_ut_execute_STA(pinfo.node, &flags); > + /* workaround Asus S1300N freeze at INI */ > + if ( memcmp(pinfo.node->name.ascii, "VGA_",4)==0 ) { > + printk(KERN_ERR "acpi: VGA_ ignored\n"); > + status = AE_NOT_FOUND; > + } else > + status = acpi_ut_execute_STA(pinfo.node, &flags); > if (ACPI_FAILURE(status)) { > /* Ignore error and move on to next device */ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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