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From: "Dr. David Alan Gilbert" <linux@treblig.org>
To: Jiri Kosina <jkosina@suse.cz>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	linux-kernel@vger.kernel.org, linux-input@vger.kernel.org
Subject: Re: 2.6.{28,30} Keyboard not working on oldish machine
Date: Sat, 4 Jul 2009 02:24:03 +0100	[thread overview]
Message-ID: <20090704012403.GA31026@gallifrey> (raw)
In-Reply-To: <alpine.LNX.2.00.0906291103140.18021@wotan.suse.de>

* Jiri Kosina (jkosina@suse.cz) wrote:
> On Sun, 28 Jun 2009, Dr. David Alan Gilbert wrote:
> 
> > Apologies for the delay; attached is the dmesg from the Debian 2.6.18
> > in which keyboard works as previously described.
> 
> So the main difference is here:
> 
> 	drivers/input/serio/i8042.c: 20 -> i8042 (command) [3]
> 	drivers/input/serio/i8042.c: 65 <- i8042 (return) [3]
> 	drivers/input/serio/i8042.c: 60 -> i8042 (command) [3]
> 	drivers/input/serio/i8042.c: 74 -> i8042 (parameter) [3]
> 	drivers/input/serio/i8042.c: Interrupt 1, without any data [3]
> 
> compared to
> 
> 	drivers/input/serio/i8042.c: 20 -> i8042 (command) [1]
> 	drivers/input/serio/i8042.c: 65 <- i8042 (return) [1]
> 	drivers/input/serio/i8042.c: 60 -> i8042 (command) [2]
> 	drivers/input/serio/i8042.c: 74 -> i8042 (parameter) [2]
> 	drivers/input/serio/i8042.c: d3 -> i8042 (command) [2]
> 
> So it looks like it is really affected by the polling timer removal/early 
> IRQ registration.

While that is different it does carry on; and, if I'm reading it
right, the last thing it does in my 2.6.30 logs is enable the keyboard
and then prod the mouse:

[    2.814817] drivers/input/serio/i8042.c: f4 -> i8042 (kbd-data) [13]
[    2.817615] drivers/input/serio/i8042.c: fa <- i8042 (interrupt, 0, 1) [14]
[    2.823470] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[    2.827716] evbug.c: Connected device: input1 (AT Translated Set 2 keyboard at isa0060/serio0/input0)
[    2.828278] drivers/input/serio/i8042.c: d4 -> i8042 (command) [17]
[    2.828427] drivers/input/serio/i8042.c: f2 -> i8042 (parameter) [17]

The 'ack' to the f4 presumably means the keyboard is reasonably happy?

That 'd4, f2' write-to-mouse times out on the 2.6.18 version, but no other 8042 debug
comes out on the 2.6.30. Here's the matching 2.6.18:

drivers/input/serio/i8042.c: d4 -> i8042 (command) [7]
drivers/input/serio/i8042.c: f2 -> i8042 (parameter) [7]
EISA: Probing bus 0 at eisa.0
EISA: Detected 0 cards.
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 8
NET: Registered protocol family 20
Using IPI Shortcut mode
Time: tsc clocksource has been installed.
Freeing unused kernel memory: 256k freed
drivers/input/serio/i8042.c: fe <- i8042 (interrupt, AUX, 0, timeout) [19]
drivers/input/serio/i8042.c: d4 -> i8042 (command) [19]
drivers/input/serio/i8042.c: ed -> i8042 (parameter) [19]
drivers/input/serio/i8042.c: fe <- i8042 (interrupt, AUX, 0, timeout) [31]
drivers/input/serio/i8042.c: 60 -> i8042 (command) [31]
drivers/input/serio/i8042.c: 44 -> i8042 (parameter) [31]

(Although it's a bit difficult to compare since it seems 2.6.18 tends to do
mouse first and only keyboard after the mouse times out).

Dave
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/

  reply	other threads:[~2009-07-04  0:24 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-13 23:08 Dr. David Alan Gilbert
2009-06-13 22:54 ` Ozan Çağlayan
2009-06-14 17:49   ` Dr. David Alan Gilbert
2009-06-14  6:27 ` Pekka Enberg
2009-06-14  6:27   ` Pekka Enberg
2009-06-14  6:40 ` H. Peter Anvin
2009-06-14 12:27   ` Dr. David Alan Gilbert
2009-06-16  9:27     ` Jiri Kosina
2009-06-17 19:34       ` Dr. David Alan Gilbert
2009-06-17 20:40         ` H. Peter Anvin
2009-06-17 23:28         ` Jiri Kosina
2009-06-20 12:03           ` Dr. David Alan Gilbert
2009-06-22  9:29             ` Jiri Kosina
2009-06-22 19:46             ` Dr. David Alan Gilbert
2009-06-23  8:42               ` Jiri Kosina
2009-06-23 18:58                 ` Dr. David Alan Gilbert
2009-06-23 18:06                   ` Dmitry Torokhov
2009-06-28 14:04                     ` Dr. David Alan Gilbert
2009-06-29  9:06                       ` Jiri Kosina
2009-07-04  1:24                         ` Dr. David Alan Gilbert [this message]
2009-09-04  5:18                       ` Dmitry Torokhov
2009-09-05 23:51                         ` Dr. David Alan Gilbert
2009-09-08  6:12                           ` Dmitry Torokhov
2009-09-09  1:53                             ` Dmitry Torokhov
2009-09-12 15:00                               ` Dr. David Alan Gilbert

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