[Buildroot] Keyboard and mouse not working in X server

[Laurentiu-Cristian Duca]

Success in two situations:
1. udev + xdriver_xf86-input-evdev and xdriver_xf86-libinput
(thanks Arnout Vandecappelle)
2. devtmpfs with the following lines to xorg.conf:
Section "ServerFlags"
  Option       "AutoAddDevices"   "false"
EndSection

Best regards,
L-C.

On 5/14/19, Arnout Vandecappelle <arnout at mind.be> wrote:
>  Hi L-C,
>
> On 14/05/2019 15:51, Laurentiu-Cristian Duca wrote:
>> Hello Buildroot community,
>>
>>   I am an open source enthusisast and I am new to buildroot.
>> I have built in buildroot 2019.02.1
>> a raspberry pi 1 configuration
>> with Xorg server (1.20.3) and xdriver_xf86-input-mouse-1.9.3
>> xdriver_xf86-input-keyboard-1.9.0 and SystemV init.
>
>  I am not an X expert by a long shot, but I believe you'll have better luck
> with
> xdriver_xf86-input-evdev or -libinput. -keyboard and -mouse are more for
> legacy
> bus keyboard/mouse devices I think.
>
>
>>   I use simple USB keyboard and mouse.
>>
>>   Keyboard works in consle tty1 (HDMI display).
>>   startx runs successfully but mouse and keyboard do not work with X
>> started.
>> X just shows 3 open xterm windows and I can not write or move mouse
>> cursor
>> (which is showed in the center of the screen).
>>
>>   I have tried xorg.conf with:
>> Section "Device"
>>         Identifier      "Allwinner A10/A13 FBDEV"
>>         Driver          "fbturbo"
>>         Option          "fbdev" "/dev/fb0"
>>         Option          "SwapbuffersWait" "true"
>> EndSection
>>
>>   I have also tried with no success combinations with:
>>
>> Section "InputDevice"
>
>  I don't think there's any need for input device configuration in
> xorg.conf.
>
>>     Identifier  "Mouse"
>>     Driver      "mouse"
>>     Option      "Protocol"      "auto"
>>     Option      "Device"        "/dev/bus/usb/001/005"
>> EndSection
>>
>> Section "InputDevice"
>>     Identifier     "Keyboard0"
>>     Driver         "kbd"
>>     Option         "XkbLayout" "us"
>>     Option         "XkbModel" "pc105"
>> EndSection
>>
>>   When I have nothing connected to usb
>> find /dev/ | grep -i "usb"
>> it shows:
>> /dev/bus/usb
>> /dev/bus/usb/001
>> /dev/bus/usb/001/003
>> /dev/bus/usb/001/002
>> /dev/bus/usb/001/001
>>   If I insert keyboard and mouse it also shows:
>> /dev/bus/usb/001/006
>> /dev/bus/usb/001/005
>> /dev/bus/usb/001/004
>
>  Can you check that you also have /dev/input/eventN nodes? These are the
> ones
> that get used by evdev and libinput. But if you don't have them, I don't
> think
> the console keyboard would work either.
>
>  Regards,
>  Arnout
>
>>
>> # ls /usr/lib/xorg/modules/input/
>> kbd_drv.so    mouse_drv.so
>> # xinput --list
>> ��⎡ Virtual core pointer                        id=2    [master pointer
>> (3)]
>> ��⎜   ��↳ Virtual core XTEST pointer                    id=4    [slave
>>  pointer  (2)]
>> ��⎣ Virtual core keyboard                       id=3    [master keyboard
>> (2)]
>>     ��↳ Virtual core XTEST keyboard                     id=5    [slave
>>  keyboard (3)]
>> No success with:
>> # xinput enable 2
>> (and 3, 4, 5)
>>
>> I do not use udev or mdev, instead I use devtmpfs. Is there any way to
>> have
>> mouse and keyboard working?
>> # cat /var/log/Xorg.0.log
>> ...
>> [  2042.804] (II) The server relies on udev to provide the list of
>> input devices.
>>         If no devices become available, reconfigure udev or disable
>> AutoAddDevices.
>> [  2042.804] (II) Loader magic: 0x1d8e58
>> [  2042.804] (II) Module ABI versions:
>> [  2042.804]    X.Org ANSI C Emulation: 0.4
>> [  2042.804]    X.Org Video Driver: 24.0
>> [  2042.804]    X.Org XInput driver : 24.1
>> [  2042.804]    X.Org Server Extension : 10.0
>> [  2042.816] (++) using VT number 1
>> ...
>>
>>   Any ideas?
>>
>> Thank you and best regards,
>> L-C. Duca
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>