linux-kernel - Re: [bisected regression] Touchpad "paste" stops working after suspend to RAM

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Date:	Thu, 15 Oct 2009 13:08:59 +0200
From:	"Carlos R. Mafra" <crmafra2@...il.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-kernel@...r.kernel.org, "Rafael J. Wysocki" <rjw@...k.pl>,
	linux-input@...r.kernel.org
Subject: Re: [bisected regression] Touchpad "paste" stops working after
	suspend to RAM

On Wed 14.Oct'09 at 17:44:52 -0700, Dmitry Torokhov wrote:
> Ok, so here is hopefullt the last patch, it automatically disables MUX
> mode on your Vaio since it is broken (you still need the previous patch
> that changes atkbd since - there are 2 diffrent issues). I'd appreciate
> if you could test it 

I tested the patch below on top of the atkbd patch, and paste still
works after s2ram

> - if it works then you should see mention of only 2
> serio ports in your dmesg and not 5.

And now I see this in the dmesg

PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice

so your patch did what you said it would.

Thanks Dmitry!


> Input: i8042 - add Sony Vaio VGN-FZ240E to the nomux list
> 
> From: Dmitry Torokhov <dmitry.torokhov@...il.com>
> 
> On this model, when KBD is in active multiplexing mode, acknowledgements
> to reset and get ID commands issued on KBD port sometimes are delivered
> to AUX3 port (touchpad) which messes up device detection. Legacy KBC
> mode works fine and since there are no external PS/2 ports on this laptop
> and no support for docking station we can safely disable active MUX mode.
> 
> Signed-off-by: Dmitry Torokhov <dtor@...l.ru>
> ---
> 
>  drivers/input/serio/i8042-x86ia64io.h |   11 +++++++++++
>  1 files changed, 11 insertions(+), 0 deletions(-)
> 
> 
> diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
> index 77ff205..a537925 100644
> --- a/drivers/input/serio/i8042-x86ia64io.h
> +++ b/drivers/input/serio/i8042-x86ia64io.h
> @@ -327,6 +327,17 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
>  		},
>  	},
>  	{
> +		/*
> +		 * Reset and GET ID commands issued via KBD port are
> +		 * sometimes being delivered to AUX3.
> +		 */
> +		.ident = "Sony Vaio FZ-240E",
> +		.matches = {
> +			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
> +			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
> +		},
> +	},
> +	{
>  		.ident = "Amoi M636/A737",
>  		.matches = {
>  			DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
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