[LightDM] No Keyboard Touchpad with lightdm Mate / Dell Latitude E6420

Edouard Guigné guigne at lms.polytechnique.fr
Tue Feb 23 12:43:16 UTC 2016


Hi Robert,

Thank you very much for your help.
I finally find out that nvidia driver installed from elrepo.org was 
responsible for my keyboard/touchpad issue.
I removed if, and uninstalled Mate + X Windows ; then reinstalled X 
Windows and Mate.
First with "nouveau" drivers, keyboard and touchpad were back working.
Then I installed Nvidia drivers from nvidia drivers site (instead of 
elrepo.org) ; keyboard and mouse still works now.

I think something breaks the keyboard / touchpad configuration with 
elrepo.org... for this dell laptop E6420.

Best Regards
Edouard

Le 23/02/2016 01:48, Robert Ancell a écrit :
> Hi Edouard,
>
> LightDM itself doesn't actually control the keyboard, you should look 
> in the greeter you are using (lightdm-gtk-greeter) or the session 
> (MATE) to see why it's not logging in.
>
> You may also want to check that the keyboard is being assigned 
> correctly by running "loginctl seat-status" after starting LightDM.
>
> --Robert
>
> On Mon, 22 Feb 2016 at 22:12 Edouard Guigné 
> <guigne at lms.polytechnique.fr <mailto:guigne at lms.polytechnique.fr>> wrote:
>
>     Hello,
>
>     I installed last week a Dell laptop E6420 in centos 7 with Mate
>     desktop.
>     Installation looked good, I used a remote connexion through ssh
>     and xrdp
>     session to configure the laptop ( I installed first "X Window system"
>     then "MATE Desktop" and switch to graphical.target)
>     When I finished it, I wanted to login locally on the laptop ; but I
>     faced a strange issue : I cannot use the inputs keyboard and
>     touchpad...
>     I tried to plug a external usb keyboard and mouse : same issue, cannot
>     input.
>
>     I noticed that the problem seems to be with lightdm service.
>     Because when I stop the service # systemctl stop lightdm and I can
>     logon
>     through tty with using the laptop keyboard.
>
>     With the lightdm logon screen, the keyboard and touchpad are not
>     working...
>
>     I am not used to configure keyboard/mouse on linux. Usually It was
>     working good on all my centos 7 or fedora xx installations with Mate
>     Desktop.
>     First time I get this issue.
>
>     Physically, everything seems to be good :
>     # cat /proc/bus/input/devices
>     I: Bus=0019 Vendor=0000 Product=0005 Version=0000
>     N: Name="Lid Switch"
>     P: Phys=PNP0C0D/button/input0
>     S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0
>     U: Uniq=
>     H: Handlers=event0
>     B: PROP=0
>     B: EV=21
>     B: SW=1
>
>     I: Bus=0019 Vendor=0000 Product=0001 Version=0000
>     N: Name="Power Button"
>     P: Phys=PNP0C0C/button/input0
>     S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1
>     U: Uniq=
>     H: Handlers=kbd event1
>     B: PROP=0
>     B: EV=3
>     B: KEY=10000000000000 0
>
>     I: Bus=0019 Vendor=0000 Product=0003 Version=0000
>     N: Name="Sleep Button"
>     P: Phys=PNP0C0E/button/input0
>     S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input2
>     U: Uniq=
>     H: Handlers=kbd event2
>     B: PROP=0
>     B: EV=3
>     B: KEY=4000 0 0
>
>     I: Bus=0019 Vendor=0000 Product=0001 Version=0000
>     N: Name="Power Button"
>     P: Phys=LNXPWRBN/button/input0
>     S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input3
>     U: Uniq=
>     H: Handlers=kbd event3
>     B: PROP=0
>     B: EV=3
>     B: KEY=10000000000000 0
>
>     I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
>     N: Name="AT Translated Set 2 keyboard"
>     P: Phys=isa0060/serio0/input0
>     S: Sysfs=/devices/platform/i8042/serio0/input/input4
>     U: Uniq=
>     H: Handlers=sysrq kbd event4
>     B: PROP=0
>     B: EV=120013
>     B: KEY=1100f02902000 8380307cf910f001 feffffdfffefffff
>     fffffffffffffffe
>     B: MSC=10
>     B: LED=7
>
>     I: Bus=0019 Vendor=0000 Product=0006 Version=0000
>     N: Name="Video Bus"
>     P: Phys=LNXVIDEO/video/input0
>     S:
>     Sysfs=/devices/LNXSYSTM:00/device:00/PNP0A08:00/device:13/LNXVIDEO:00/input/input5
>     U: Uniq=
>     H: Handlers=kbd event5
>     B: PROP=0
>     B: EV=3
>     B: KEY=3e000b00000000 0 0 0
>
>     I: Bus=0003 Vendor=045e Product=00cb Version=0111
>     N: Name="Microsoft Microsoft Basic Optical Mouse v2.0 "
>     P: Phys=usb-0000:00:1d.0-1.2/input0
>     S:
>     Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/input/input6
>     U: Uniq=
>     H: Handlers=mouse0 event6
>     B: PROP=0
>     B: EV=17
>     B: KEY=70000 0 0 0 0
>     B: REL=103
>     B: MSC=10
>
>     I: Bus=0011 Vendor=0002 Product=0008 Version=0000
>     N: Name="DualPoint Stick"
>     P: Phys=isa0060/serio1/input1
>     S: Sysfs=/devices/platform/i8042/serio1/input/input7
>     U: Uniq=
>     H: Handlers=mouse1 event7
>     B: PROP=21
>     B: EV=7
>     B: KEY=70000 0 0 0 0
>     B: REL=3
>
>     I: Bus=0011 Vendor=0002 Product=0008 Version=0300
>     N: Name="AlpsPS/2 ALPS DualPoint TouchPad"
>     P: Phys=isa0060/serio1/input0
>     S: Sysfs=/devices/platform/i8042/serio1/input/input8
>     U: Uniq=
>     H: Handlers=mouse2 event8
>     B: PROP=9
>     B: EV=b
>     B: KEY=e420 70000 0 0 0 0
>     B: ABS=260800001000003
>
>     I: Bus=0010 Vendor=001f Product=0001 Version=0100
>     N: Name="PC Speaker"
>     P: Phys=isa0061/input0
>     S: Sysfs=/devices/platform/pcspkr/input/input9
>     U: Uniq=
>     H: Handlers=kbd event9
>     B: PROP=0
>     B: EV=40001
>     B: SND=6
>
>     I: Bus=0019 Vendor=0000 Product=0000 Version=0000
>     N: Name="Dell WMI hotkeys"
>     P: Phys=wmi/input0
>     S: Sysfs=/devices/virtual/input/input10
>     U: Uniq=
>     H: Handlers=kbd event10
>     B: PROP=0
>     B: EV=13
>     B: KEY=1000b00000400 0 e000000000000 0
>     B: MSC=10
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA Intel PCH Dock Mic"
>     P: Phys=ALSA
>     S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input11
>     U: Uniq=
>     H: Handlers=event11
>     B: PROP=0
>     B: EV=21
>     B: SW=10
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA Intel PCH Mic"
>     P: Phys=ALSA
>     S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input12
>     U: Uniq=
>     H: Handlers=event12
>     B: PROP=0
>     B: EV=21
>     B: SW=10
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA Intel PCH Dock Line Out"
>     P: Phys=ALSA
>     S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input13
>     U: Uniq=
>     H: Handlers=event13
>     B: PROP=0
>     B: EV=21
>     B: SW=40
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA Intel PCH Headphone"
>     P: Phys=ALSA
>     S: Sysfs=/devices/pci0000:00/0000:00:1b.0/sound/card0/input14
>     U: Uniq=
>     H: Handlers=event14
>     B: PROP=0
>     B: EV=21
>     B: SW=4
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA NVidia HDMI/DP,pcm=3"
>     P: Phys=ALSA
>     S:
>     Sysfs=/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15
>     U: Uniq=
>     H: Handlers=event15
>     B: PROP=0
>     B: EV=21
>     B: SW=140
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA NVidia HDMI/DP,pcm=7"
>     P: Phys=ALSA
>     S:
>     Sysfs=/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input16
>     U: Uniq=
>     H: Handlers=event16
>     B: PROP=0
>     B: EV=21
>     B: SW=140
>
>     I: Bus=0000 Vendor=0000 Product=0000 Version=0000
>     N: Name="HDA NVidia HDMI/DP,pcm=8"
>     P: Phys=ALSA
>     S:
>     Sysfs=/devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17
>     U: Uniq=
>     H: Handlers=event17
>     B: PROP=0
>     B: EV=21
>     B: SW=140
>
>     Thank for your help.
>
>     --
>     Edouard Guigné
>     LMS - Ecole Polytechnique
>     PALAISEAU
>     01.69.33.57.77
>
>
>     _______________________________________________
>     LightDM mailing list
>     LightDM at lists.freedesktop.org <mailto:LightDM at lists.freedesktop.org>
>     https://lists.freedesktop.org/mailman/listinfo/lightdm
>


-- 
Edouard Guigné
LMS - Ecole Polytechnique
PALAISEAU
01.69.33.57.77

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