xorg.conf SHMConfig "on" doesn't work

dla-nor · 10-22-2008, 01:06 AM

I am trying to get either the "synclient" command or the gsynaptics GUI to work for turning tapping off on my touchpad.

I read a lot of instructions and turned on SHMConfig in my xorg.conf, but I still am getting the error message that I need to turn SHMConfig for it to work (also, my understanding is that from this configuration the tapping should already be off, but it isn't). Here is my xorg.conf:

Code:

# Xorg configuration created by pyxf86config

Section "ServerLayout"
	Identifier     "Default Layout"
	Screen      0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
	InputDevice	"Synaptics Touchpad" "CorePointer"
EndSection

Section "InputDevice"
# keyboard added by rhpxl
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "us"
EndSection

Section "InputDevice"
	Identifier	"Synaptics Touchpad"
	Driver		"synaptics"
	Option		"SendCoreEvents"	"true"
	Option		"Protocol"	"auto-dev"
	Option		"TapButton1"	"0"
	Option		"TapButton2"	"0"
	Option		"SHMConfig"	"on"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "intel"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

Section "Module"
	Load "synaptics"
EndSection

JosephMu · 12-31-2008, 12:07 PM

the same problem like Dla..

my xorg.conf file does not contain any code related to the touchpad..

then the code below was added but nothing changes at all:

InputDevice "Synaptics Touchpad" "CorePointer" ## in the "ServerLayout" section

Section "InputDevice" ###
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Protocol" "auto-dev"
Option "TapButton1" "0"
Option "TapButton2" "0"
Option "SHMConfig" "on"
EndSection

when i type "synclient touchpadoff=1 －－disable touchpad"
the terminal still gives a response: "Can't access shared memory area. SHMConfig disabled?"

could someone tell me what should i do after change this xorg.conf file??

btw, m using fedora 9.

any reply will be appreciate, tks.

Krellan · 01-01-2009, 09:22 PM

I am running Fedora 9.

This worked for me, to enable the Synaptics touchpad "gsynaptics" GUI configuration utility, and also the "synclient" command-line utility.

Don't edit your xorg.conf file. Instead, edit the HAL policy file, which autoloads the Synaptics driver on demand. It's difficult to edit the xorg.conf file directly, because the input device number can be different each time. This is the file, which should already exist if you installed the "xorg-x11-drv-synaptics" package:

/usr/share/hal/fdi/policy/20thirdparty/10-synaptics.fdi

Here's the contents of the file:

Quote:

<?xml version="1.0" encoding="ISO-8859-1"?>
<deviceinfo version="0.2">
<device>
<match key="info.capabilities" contains="input.touchpad">
<match key="info.product" contains="Synaptics TouchPad">
<merge key="input.x11_driver" type="string">synaptics</merge>
<merge key="input.x11_options.SHMConfig" type="string">on</merge>
</match>
<match key="info.product" contains="AlpsPS/2 ALPS">
<merge key="input.x11_driver" type="string">synaptics</merge>
<merge key="input.x11_options.SHMConfig" type="string">on</merge>
</match>
<match key="info.product" contains="appletouch">
<merge key="input.x11_driver" type="string">synaptics</merge>
<merge key="input.x11_options.SHMConfig" type="string">on</merge>
</match>
<match key="info.product" contains="bcm5974">
<merge key="input.x11_driver" type="string">synaptics</merge>
<merge key="input.x11_options.SHMConfig" type="string">on</merge>
</match>
</match>
</device>
</deviceinfo>

Basically, what you do is take the existing file, and add the x11_options lines, just below all of the x11_driver lines. This forces HAL to stuff in the correct options to the driver, as it loads. Very handy!

You might have to reboot in order to get HAL and X to all completely reload. You can see the results in the /var/log/Xorg.0.log file:

Quote:

(II) Loading /usr/lib/xorg/modules/input//synaptics_drv.so
(II) Module synaptics: vendor="X.Org Foundation"
compiled for 1.5.0, module version = 0.15.1
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.1
(II) Synaptics touchpad driver version 0.15.1
(II) SynPS/2 Synaptics TouchPad: x-axis range 1472 - 5472
(II) SynPS/2 Synaptics TouchPad: y-axis range 1408 - 4448
(**) Option "Device" "/dev/input/event6"
(**) Option "SHMConfig" "on"
(--) SynPS/2 Synaptics TouchPad touchpad found
(**) SynPS/2 Synaptics TouchPad: always reports core events
(II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: MOUSE)
(II) SynPS/2 Synaptics TouchPad: x-axis range 1472 - 5472
(II) SynPS/2 Synaptics TouchPad: y-axis range 1408 - 4448
(--) SynPS/2 Synaptics TouchPad touchpad found

The line in the middle, about SHMConfig on, indicates success.

JosephMu · 01-25-2009, 12:16 PM

I didn't installed this package¬¬

sorry for my silly Questions

i think i need to start from the very beginning..

anyway, tks a lot.

Quote:

Originally Posted by Krellan

This is the file, which should already exist if you installed the "xorg-x11-drv-synaptics" package:.

JosephMu · 01-25-2009, 12:24 PM

the log file looks like this, what is the error could be?

Quote:

(II) Loading /usr/lib/xorg/modules/input//synaptics_drv.so
(II) Module synaptics: vendor="X.Org Foundation"
compiled for 4.3.99.902, module version = 1.0.0
Module class: X.Org XInput Driver
ABI class: X.Org XInput driver, version 2.0
(II) Synaptics touchpad driver version 0.14.6 (1406)
(--) SynPS/2 Synaptics TouchPad auto-dev sets device to /dev/input/event2
(**) Option "Device" "/dev/input/event2"
(--) SynPS/2 Synaptics TouchPad touchpad found
(**) SynPS/2 Synaptics TouchPad: always reports core events
(II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: MOUSE)
(--) SynPS/2 Synaptics TouchPad auto-dev sets device to /dev/input/event2
(**) Option "Device" "/dev/input/event2"
(--) SynPS/2 Synaptics TouchPad touchpad found
(II) Synaptics touchpad driver version 0.14.6 (1406)
(--) SynPS/2 Synaptics TouchPad auto-dev sets device to /dev/input/event2
(**) Option "Device" "/dev/input/event2"
(--) SynPS/2 Synaptics TouchPad touchpad found
(**) SynPS/2 Synaptics TouchPad: always reports core events
(II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: MOUSE)
(--) SynPS/2 Synaptics TouchPad auto-dev sets device to /dev/input/event2
(**) Option "Device" "/dev/input/event2"
(WW) SynPS/2 Synaptics TouchPad can't grab event device, errno=16
(--) SynPS/2 Synaptics TouchPad touchpad found
(II) NV(0): Probing for EDID on I2C bus 0...
(II) NV(0): I2C device "I2C0:ddc2" registered at address 0xA0.
(II) NV(0): I2C device "I2C0:ddc2" removed.
(II) NV(0): ... none found
(--) NV(0): Trying load detection on VGA1 ... nothing.

after that ...a series of "nothing" and "none found"

Krellan · 01-26-2009, 01:37 AM

Quote:

Originally Posted by JosephMu

the log file looks like this, what is the error could be?

Sorry, I don't know. I never had that error happen to me. Error number 16 is "Device or resource busy", though.

Maybe see if any other programs are using the mouse device? In particular, text-mode programs such as "selection" or "gpm" can conflict with using the mouse with X.

tshann · 01-26-2009, 06:22 AM

I just wanted to thank Krellan for his suggestion. Worked great for me, Buntu 8.1 DV5-1160us (HP) Lappie. Now I can tweak this touchpad - which was a drag before.
Peace

symatic · 07-01-2009, 08:43 PM

Im pretty sure that is controlled by hal. You may want to look into that google (hal shmconfig).

Good Luck!