Touchpad not working in Lenovo Thinkpad L480 after ugrading to ubuntu 19.04
Solution 1
I had the same problem with my ThinkPad. Found this temporary fix from the arch forums:
sets 'elantech' as the protocol for serial device with the command:
sudo sh -c 'echo -n "elantech" > /sys/bus/serio/devices/serio1/protocol'
Solution 2
The accepted solution works great! However, I found that it resets on reboot. The post below has a kernel option you can add to grub so that it's fixed on boot.
Elantech - Touchpad not working after upgrading to 18.10 from 18.04 (ThinkPad L480)
In /etc/default/grub
I added psmouse.elantech_smbus=0
to the end of GRUB_CMDLINE_LINUX_DEFAULT
and everything worked perfectly after doing sudo update-grub
and rebooting.
For reference, I'm using a Lenovo Thinkpad L390 Yoga. My touchpad was working, but clicking it only registered as a left click. I couldn't right click or drag with two fingers.
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Lohit Raja
Updated on September 18, 2022Comments
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Lohit Raja over 1 year
I have upgraded my system from 18.04 to 19.04. after upgrading to 19.04 my touchpad is not working.
My kernel version
lohit@stormbreaker:~$ uname -a Linux stormbreaker 5.0.0-15-generic #16-Ubuntu SMP Mon May 6 17:41:33 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Here is my
xinput list
:lohit@stormbreaker:~$ xinput list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ USB OPTICAL MOUSE id=9 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)] ↳ Power Button id=6 [slave keyboard (3)] ↳ Video Bus id=7 [slave keyboard (3)] ↳ Sleep Button id=8 [slave keyboard (3)] ↳ Integrated Camera: Integrated C id=10 [slave keyboard (3)] ↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)] ↳ ThinkPad Extra Buttons id=12 [slave keyboard (3)]
I tried installing, sudo apt install xserver-xorg-input-synaptics after installing, my synclient says no synaptics driverloaded.
lohit@stormbreaker:~$ synclient Couldn't find synaptics properties. No synaptics driver loaded?
I dont find any touchpad device under
/proc/bus/input/devices
lohit@stormbreaker:~$ cat /proc/bus/input/devices I: Bus=0019 Vendor=0000 Product=0003 Version=0000 N: Name="Sleep Button" P: Phys=PNP0C0E/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0 U: Uniq= H: Handlers=kbd event0 B: PROP=0 B: EV=3 B: KEY=4000 0 0 I: Bus=0019 Vendor=0000 Product=0005 Version=0000 N: Name="Lid Switch" P: Phys=PNP0C0D/button/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input1 U: Uniq= H: Handlers=event1 B: PROP=0 B: EV=21 B: SW=1 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/input2 U: Uniq= H: Handlers=kbd event2 B: PROP=0 B: EV=3 B: KEY=10000000000000 0 I: Bus=0011 Vendor=0001 Product=0001 Version=ab83 N: Name="AT Translated Set 2 keyboard" P: Phys=isa0060/serio0/input0 S: Sysfs=/devices/platform/i8042/serio0/input/input3 U: Uniq= H: Handlers=sysrq kbd event3 leds B: PROP=0 B: EV=120013 B: KEY=402000000 3803078f800d001 feffffdfffefffff fffffffffffffffe B: MSC=10 B: LED=7 I: Bus=0003 Vendor=0101 Product=0007 Version=0111 N: Name="USB OPTICAL MOUSE " P: Phys=usb-0000:00:14.0-1/input0 S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:0101:0007.0001/input/input6 U: Uniq= H: Handlers=mouse0 event4 B: PROP=0 B: EV=17 B: KEY=1f0000 0 0 0 0 B: REL=1943 B: MSC=10 I: Bus=0019 Vendor=17aa Product=5054 Version=4101 N: Name="ThinkPad Extra Buttons" P: Phys=thinkpad_acpi/input0 S: Sysfs=/devices/platform/thinkpad_acpi/input/input7 U: Uniq= H: Handlers=rfkill kbd event5 B: PROP=0 B: EV=33 B: KEY=10040 0 18040000 0 50000000000000 0 1701b02102004 c000280051115000 10e000000000000 0 B: MSC=10 B: SW=8 I: Bus=0019 Vendor=0000 Product=0006 Version=0000 N: Name="Video Bus" P: Phys=LNXVIDEO/video/input0 S: Sysfs=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input8 U: Uniq= H: Handlers=kbd event6 B: PROP=0 B: EV=3 B: KEY=3e000b00000000 0 0 0 I: Bus=0003 Vendor=5986 Product=2113 Version=5422 N: Name="Integrated Camera: Integrated C" P: Phys=usb-0000:00:14.0-7/button S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/input/input11 U: Uniq= H: Handlers=kbd event7 B: PROP=0 B: EV=3 B: KEY=100000 0 0 0 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH Mic" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input9 U: Uniq= H: Handlers=event8 B: PROP=0 B: EV=21 B: SW=10 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH Headphone" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input10 U: Uniq= H: Handlers=event9 B: PROP=0 B: EV=21 B: SW=4 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=3" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input12 U: Uniq= H: Handlers=event10 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=7" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input13 U: Uniq= H: Handlers=event11 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=8" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input14 U: Uniq= H: Handlers=event12 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=9" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input15 U: Uniq= H: Handlers=event13 B: PROP=0 B: EV=21 B: SW=140 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="HDA Intel PCH HDMI/DP,pcm=10" P: Phys=ALSA S: Sysfs=/devices/pci0000:00/0000:00:1f.3/sound/card0/input16 U: Uniq= H: Handlers=event14 B: PROP=0 B: EV=21 B: SW=140
after trying to fix from some online sources my grub looks like this:
lohit@stormbreaker:~$ sudo cat /etc/default/grub [sudo] password for lohit: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT=0 GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="i8042.reset quiet splash" GRUB_CMDLINE_LINUX="" psmouse.elantech_smbus=0 # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1"
I have checked if there are any updates availabe, and i am up to date.
please help me solve this issue
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Jos almost 5 yearsFWIW I have a Lenovo T440s. In
/proc/bus/input/devices
the touchpad is listed as:I: Bus=0011 Vendor=0002 Product=0007 Version=01b1 N: Name="SynPS/2 Synaptics TouchPad" P: Phys=isa0060/serio1/input0 S: Sysfs=/devices/platform/i8042/serio1/input/input5 U: Uniq= H: Handlers=mouse0 event4 B: PROP=15 B: EV=b B: KEY=e520 10000 0 0 0 0 B: ABS=660800011000003
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Lohit Raja almost 5 yearsits working after running the command, Thank you. my xinput list shows this ``` lohit@stormbreaker:~$ xinput list ⎡ Virtual core pointer id=2 [master pointer (3)] ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)] ⎜ ↳ ETPS/2 Elantech TrackPoint id=13 [slave pointer (2)] ⎜ ↳ ETPS/2 Elantech Touchpad id=14 [slave pointer (2)] ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ .. ```