Hi! On 24.03.2017 18:00, Dmitry Torokhov wrote: 

On Fri, Mar 24, 2017 at 11:18:51AM +0100, Thorsten Leemhuis wrote:

quoted

Lo! Dmitry, did this fall through the cracks or is there any reason why
you didn't yet apply below patch? If the latter: What is needed to get
things moving? Right now I still have access to the machine for further
tests, but that will change in a week or two. Ciao, Thorsten

I was waiting for an updated version of the patch with updated info for
E547. The "caps" data is coming from Synaptics caps query, so should be
"50, 12, 09".

/me opens eyes properly and reads the output from dmesg again
/me wonders why he hadn't noticed the capabilities output from the
synaptics driver before and missed the obvious connection

Many thx for the pointer! Find an updated patch below.

Ciao, Thorsten

From 8feadc9af68c77c9e0fec3f85b9d5312b8f2e468 Mon Sep 17 00:00:00 2001

From: Thorsten Leemhuis <linux@leemhuis.info>
Date: Thu, 9 Mar 2017 08:13:21 +0100
Subject: Input: elantech - add Fujitsu Lifebook E547 to force crc_enabled

Temprary got a Lifebook E547 into my hands and noticed the touchpad
only works after running

echo "1" > /sys/devices/platform/i8042/serio2/crc_enabled

Add it to the list of machines that need this workaround.

Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Reviewed-by: Ulrik De Bie <redacted>
---
 drivers/input/mouse/elantech.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index efc8ec3..f53dad0 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c

@@ -1118,6 +1118,7 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
  * Asus UX32VD             0x361f02        00, 15, 0e      clickpad
  * Avatar AVIU-145A2       0x361f00        ?               clickpad
  * Fujitsu LIFEBOOK E544   0x470f00        d0, 12, 09      2 hw buttons
+ * Fujitsu LIFEBOOK E547   0x470f00        50, 12, 09      2 hw buttons
  * Fujitsu LIFEBOOK E554   0x570f01        40, 14, 0c      2 hw buttons
  * Fujitsu T725            0x470f01        05, 12, 09      2 hw buttons
  * Fujitsu H730            0x570f00        c0, 14, 0c      3 hw buttons (**)

@@ -1524,6 +1525,13 @@ static int elantech_reconnect(struct psmouse *psmouse)
 		},
 	},
 	{
+		/* Fujitsu LIFEBOOK E547  does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E547"),
+		},
+	},
+	{
 		/* Fujitsu LIFEBOOK E554  does not work with crc_enabled == 0 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),

-- 
1.8.3.1