Synaptics touchpad not working with Ubuntu 18.04.2 LTS and 19.04

I’ve had issues with my Synaptics touchpad, and it seems to be with Ubuntu alone (it worked in a previous install of Windows 10 and also works fine with Mint, the latter of which had horrible sensitivity issues). What happens is it will work for a while after booting up and logging in, but then stops working. I do not have a function key on my laptop to turn off the touchpad. If I run

modprobe -r psmouse

and

mobprobe psmouse

it works for another 30 seconds then stops working. If I run those commands again, nothing happens – the touchpad can’t click, move, nothing.

I tried first on 19.04, minimal install, installed the xserver-xorg-input-synaptics package, rebooted, and the issue remained. Tried 19.04 full install, installed the same package, nothing. I’ve tried turning off touchpad mode in ‘Mouse and Touchpad’ in the Settings, that didn’t help. I tried running synclient TouchpadOff=0, nothing.

So then I decided to download 18.04.2 LTS, write it to the USB, and boot from it. I stepped away to do some things and came back, started the install, and the touchpad worked for about 10 seconds before it gave up on me. So instead of installing 18.04.2, I’m writing here to ask what else I can do. It does show up in /proc/bus/input/devices, also. I don’t think it is a hardware issue because it worked fine in Windows, not-so-fine but it at least worked in Mint, and it does work for a little while in Ubuntu before giving up.

How to make PCL Library and Python-pcl run on Ubuntu 18.04.2?

I am trying to install PCL Library following mainly these instructions also comparabel to this topic, but I used 1.9.1 and want to connect by the python-pcl bindings.. Small test is working completely.

  1. I was not able to finde the location of the “Test pcl_viewer”-section. Where to find this?
  2. I am not sure of the “Cloud Viewer”-section. Do I need to install that? Where to put the Make and CPP file?
  3. How to fix the error from a test in python3 :

ImportError: libpcl_keypoints.so.1.7: cannot open shared object file: No such file or directory

Any help is appreciated.

System directories not owned by root after preseed install 18.04.2

I have an issue where there are no files owned by root after an unattended install using preseed on Ubuntu 18.04.2. I discovered this when I could not use sudo. Upon investigation, I found that /usr, /lib and /home were owned by 1001:1001, not root, and the same for any files or sub-directories. This wasn’t a problem in the past, so I’m a bit mystified. Please see my preseed file below:

  # Localization d-i debian-installer/locale             string  en_US.UTF-8 d-i debian-installer/language           string  en d-i debian-installer/country            string US  # Keyboard layout d-i console-setup/ask_detect            boolean false d-i keyboard-configuration/layoutcode   string  us d-i keyboard-configuration/charmap      select  UTF-8 d-i keyboard-configuration/layout       string English (US)   ### Network configuration d-i netcfg/choose_interface             select auto d-i netcfg/use_autoconfig               boolean true d-i netcfg/get_domain                   string cg.chrysler.com  ### Mirror settings d-i mirror/country                      string  manual d-i mirror/http/hostname                string  us.archive.ubuntu.com d-i mirror/http/directory               string  /ubuntu d-i mirror/http/proxy                   string   d-i proxy                               string   d-i mirror/protocol                     string  http  ### Account setup d-i passwd/user-fullname                string ictadmin d-i passwd/username                     string ictadmin d-i passwd/user-password                password chrysler1 d-i passwd/user-password-again          password chrysler1 d-i user-setup/encrypt-home             boolean false  ### Clock and time zone setup - TS verified ntp server  d-i clock-setup/utc                     boolean true d-i time/zone                           string  America/Detroit d-i clock-setup/ntp                     boolean false d-i clock-setup/ntp-server             string  ntp.example.com   # Automatically detect device name of install disk d-i partman/early_command   string      debconf-set partman-auto/disk /dev/"$  (fdisk -l |grep -i linux | awk '{print $  1}' | cut -d / -f 3 |sed 's/p[0-9]$  //p' |head -n1)"  ### Partitioning and disk encryption d-i partman-auto/method                 string  crypto d-i partman-crypto/passphrase             password  d-i partman-crypto/passphrase-again       password   d-i partman-lvm/purge_lv_from_device    boolean true d-i partman-lvm/device_remove_lvm       boolean true d-i partman-md/device_remove_md         boolean true d-i partman-lvm/confirm                boolean true d-i partman-lvm/confirm_nooverwrite    boolean true d-i partman-auto/choose_recipe          select  atomic  d-i partman-partitioning/confirm_write_new_label boolean true d-i partman/choose_partition            select finish d-i partman/confirm                     boolean true d-i partman-lvm/confirm_nooverwrite    boolean true  ### Package selection tasksel tasksel/first                   multiselect ubuntu-desktop ubiquity    ubiquity/keep-installed string icedtea6-plugin openoffice.org # Enable extras.ubuntu.com. d-i apt-setup/extras    boolean true d-i pkgsel/include/install-recommends   boolean true  ### Boot loader installation d-i grub-installer/only_debian          boolean true##  TO DO:  Resolve how to create more file systems ##  Need to have OS separated from data d-i grub-installer/with_other_os        boolean true    ### Copy and install some extra stuff  ### When ubiquity/success_command is invoked /target is mounted  ubiquity ubiquity/success_command       string \    in-target apt purge gdm3 ; \    in-target apt update ; \    in-target apt-get -y install net-tools libwebkitgtk-3.0 terminator gdm3 ; \    in-target hostname `echo "ubn"$  (lshw | grep -m 1 serial | awk '{print tolower ($  2)}')` ; \    hostname > /target/etc/hostname ; \    sed -i "2s/.*/127.0.1.1\t$  (cat /target/etc/hostname)/" /target/etc/hosts  ubiquity ubiquity/use_nonfree   boolean true ubiquity ubiquity/reboot   boolean  true 

Ubuntu 18.04.2 LTS Installation Failure on HP CE 1000Tu Laptop

My new Laptop HP Pavilion 14 CE1000Tu came preloaded with Windows 10. I wanted Ubuntu and Windows so used the Windows disk management console to set around 80GB for Ubuntu. The problem is I am not able to try Ubuntu or Install it. I keep getting ACPI Error that says parse failed then it goes to the Ubuntu screen and again comes back to the error screen saying ACPI Error(Bug) parse failed. I disabled secure boot and tried but I am not able to install or even use Ubuntu Live both seem to fail.

Below are my partitions. enter image description here

I have updated my BIOS to the latest version as well but does not seem to change the result.

Heavy Disk and CPU usage [Kubuntu 18.04.2]

My Kubuntu desktop is seemed to have slowed down for the past two days and I don’t know why. It was fine, all my programs worked great but since yesterday the desktop runs really slowly. Applications like Dolphin (File manager) and Firefox (browser) which I use almost everyday take a very long time to load and quite often they hang along with the system which forces me to reboot the whole system. Videos playing on the browser and offline using VLC player stutter all the time and freezes quite often. I booted my computer today and left it idle for around 30 min with the KSysguard application running in the background to monitor the CPU usage. I found that after boot, my CPU usage is constant at 100% for around 10 min before it drops and is always in between 50% to 80% (this is without any application except for the system monitor running in the background). Any application that I open like Firefox, the CPU usage immediately jumps to a 100% and stays there even though the computer is idle. The RAM usage however is normal as before. No excessive ram usage noticed. I ran the ‘top‘ command in the terminal to check the load usage which is on average above 3.0 on idle (which is weird according to my father who also uses linux on his work laptop, his laptop load is under 3 most of the time and exceeds 3.0 only under heavy load). Is this a bug or some improper installation of some update? I need help. [I use Kubuntu 18.04.2 and it is updated as of 17 July 2019]

trying ti install 18.04.2 on a Dell Latitude E6500 with legacy BIOS

I ran Ubuntu 18.04.2 from the “live” disc with no problems. The installation appeared to go without a hitch – TWICE. However, after the installation completes, it will not boot. All I get is a blinking cursor up in the left hand corner of the screen. I followed instructions for boot repair. That also seemed to run fine from the “live” disc, but it did not solve the boot problem. From what I can tell, the Dell Latitude E6500 does not have a UEFI mode. There were some articles I read that suggested that THAT was the problem, but they offered no solution. Can someone point me to a comprehensive article on how to install Ubuntu on the Dell Latitude E6500. Perhaps there is a different version that WILL install. THANK YOU.

Frank Fiamingo

Ubuntu 18.04.2 – After upgrade facing issue with input type=”password” fields – Loosing focus

Ubuntu 18.04.2 – After upgrade facing issue with input type=”password” fields – Loosing focus …

I recently update and upgraded my system like every week. When I try to enter a value in a input type=”password” fields on pretty much every website (using firefox), it constantly looses focus and it makes it almost impossible to enter a value.

How can I solve this issue? That’s my setup:

~$   sudo apt-get update ... ~$   sudo apt-get upgrade ... ~$   apt-cache show firefox | grep Version Version: 68.0+build3-0ubuntu0.18.04.1 Version: 59.0.2+build1-0ubuntu1 ~$   lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:    Ubuntu 18.04.2 LTS Release:    18.04 Codename:   bionic 

I found a similar issue here:

https://bugs.launchpad.net/ubuntu/+source/ibus/+bug/1765304

Gnome on Ubuntu 18.04.2 LTS text copying triggers apparently useless file writes

I recently noticed a strange behavior on my (pretty vanilla) Ubuntu 18.04.2 LTS. Every time I copy some text from GNOME Terminal, using keyboard or mouse, it triggers a little hard drive activity.

Intrigued, I decided to see what was going on (persistent clipboard data?). After some investigation, I found out that the activity is due to a file being written to whenever I do a copy in GNOME Terminal (or in other apps):

~/.config/nautilus/desktop-metadata

The small file seems to record the nautilus view settings and the trash icon state, has no apparent relation to functions of the clipboard, and does not mutate following each write (the content stays unchanged).

My questions are:

  1. Does this happen on your system?
  2. Why?
  3. How can I stop this?