Emulate3Buttons not honored

K Vanw kl.vanw at gmail.com
Tue Jul 26 14:48:12 PDT 2011


On Mon, Jul 25, 2011 at 11:03 PM, Peter Hutterer
<peter.hutterer at who-t.net> wrote:
> On Mon, Jul 25, 2011 at 09:41:34PM -0400, K Vanw wrote:
>> I'm trying to get my "ORtek Wireless Touchpad keyboard" to emulate 3
>> buttons. If I use xinput to set the "Evdev Middle Button Emulation" to
>> true, it works fine. But I can't get X to set that property from
>> x.config. I have this file (55-3button.conf) in my x.config.d/ folder:
>>
>> Section "InputClass"
>>  Identifier "Middle button emulation class"
>>  MatchIsPointer "on"
>>  MatchProduct "ORtek Wireless Touchpad Keyboard"
>>  Option "Emulate3Buttons" "on"
>>  Option "Emulate3Timeout" "51"
>> EndSection
>>
>> The relevant lines in Xorg.0.log are:
>>
>> [104142.299] (**) ORtek Wireless Touchpad Keyboard: Applying
>> InputClass "Middle button emulation class"
>> [104142.300] (--) ORtek Wireless Touchpad Keyboard: Found 3 mouse buttons
>> [104142.300] (--) ORtek Wireless Touchpad Keyboard: Found scroll wheel(s)
>> [104142.300] (--) ORtek Wireless Touchpad Keyboard: Found relative axes
>> [104142.300] (--) ORtek Wireless Touchpad Keyboard: Found x and y relative axes
>> [104142.300] (--) ORtek Wireless Touchpad Keyboard: Found keys
>> [104142.300] (II) ORtek Wireless Touchpad Keyboard: Configuring as mouse
>> [104142.300] (II) ORtek Wireless Touchpad Keyboard: Configuring as keyboard
>> [104142.300] (II) ORtek Wireless Touchpad Keyboard: Adding scrollwheel support
>> [104142.300] (**) Option "Emulate3Buttons" "on"
>> [104142.300] (**) Option "Emulate3Timeout" "51"
>> [104142.300] (**) ORtek Wireless Touchpad Keyboard: YAxisMapping:
>> buttons 4 and 5
>> [104142.300] (**) ORtek Wireless Touchpad Keyboard:
>> EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout:
>> 200
>>
>> Note that X reports that it 'Found 3 mouse buttons', but in fact there
>> are only 2 real buttons.
>
> That information comes from the kernel.
>
>> After X starts, xinput reports:
>>
>> # xinput list-props 'pointer:ORtek Wireless Touchpad Keyboard'
>> Device 'ORtek Wireless Touchpad Keyboard':
>> Device Enabled (134): 1
>> Coordinate Transformation Matrix (136): 1.000000, 0.000000, 0.000000,
>> 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
>> Device Accel Profile (261): 0
>> Device Accel Constant Deceleration (262): 1.000000
>> Device Accel Adaptive Deceleration (263): 1.000000
>> Device Accel Velocity Scaling (264): 10.000000
>> Device Product ID (253): 1444, 4096
>> Device Node (254): "/dev/input/event5"
>> Evdev Axis Inversion (265): 0, 0
>> Evdev Axes Swap (267): 0
>> Axis Labels (268): "Rel X" (144), "Rel Y" (145)
>> Button Labels (269): "Button Left" (137), "Button Middle" (138),
>> "Button Right" (139), "Button Wheel Up" (140), "Button Wheel Down"
>> (141), "Button Horiz Wheel Left" (142), "Button Horiz Wheel Right"
>> (143)
>> Evdev Middle Button Emulation (270): 0
>> Evdev Middle Button Timeout (271): 51
>> Evdev Wheel Emulation (272): 0
>> Evdev Wheel Emulation Axes (273): 0, 0, 4, 5
>> Evdev Wheel Emulation Inertia (274): 10
>> Evdev Wheel Emulation Timeout (275): 200
>> Evdev Wheel Emulation Button (276): 4
>> Evdev Drag Lock Buttons (277): 0
>>
>> As you can see, the Middle Button Emulation is not set. but "xinput
>> set-prop 10 270 1" will set it correctly. So how do I get this set via
>> an xorg.conf.d file?
>
> try starting a plain X server without a desktop environment. does it work
> then?

Interesting. I was using the Gnome wm, but switched to good old
fluxbox and it worked fine (also works without a wm as Peter
suggested). That is, it correctly set Emulate3Buttons from my
xorg.conf.d file. So the question is, why/how is gnome turning it off?
Not really an X11 question, but maybe someone here knows.



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