if somebody would have solved this issue in the last 20+ years would have been exposed yet, Nobody knows! Bunch of losers wasting time on a free OS. Every idiot just copies and paste, with no real answers. This message will be deleted anyways by freeworld moderators.
I've had a similar problem with a single computer. What fixed it was putting the USB dongle on an extension USB cord (~3 ft.) so that dongle (1) is away from the computer, and (2) has relatively clear path of transmission to the mouse.
I am guessing that the computer generates electrical noise that can interfere with the signal. Also, before moving it, ...
The problem you are observing is caused by incorrect font substitution. On my computer, CourierStd and ZapfDingbats are replaced with Ubuntu. That will obviously not render properly.
To correct this:
Install fonts-urw-base35. This should correct the Dingbats and most other pdf font substitutions. However, CourierStd is not fixed because the config files ...
I managed to access the tty console using Ctrl + Alt + Delete. After doing so, I executed the following command.
sudo apt purge libglapi-mesa
And it removed a lot of packages related to this library.
Then I reinstalled
sudo apt install libglapi-mesa
Then I rebooted my PC and found out that I no longer have a desktop environment. But my WiFi is working anyway....
Here's the fool-proof step-by-step solution:
Boot into safe mode (recovery mode). Enter this mode by holding the left shift key when the computer starts.
in terminal, type:
sudo apt-get purge nvidia*
sudo ubuntu-drivers autoinstall #Make sure you have internet connection
(This worked on my dual booted computer (Windows 10 and Ubuntu 18.04)
my error ...
I had the same problem and I read infinite Answer and questions. But the solution is very very easy, if you really are experimenting a WiFi networking hard blocking.
Here the solution:
First check with
sudo lshw -class network
a response like that (may changes but it is important that you see the wi-fi adpater):
Rebooted 18.04 and after login got black screen and no access to terminals. Followed recommendation above and https://medium.com/@zhanghan177/server-boots-into-black-screen-after-upgrading-to-ubuntu-18-04-1b9f3a87ee60
From grub menu, selected current ubuntu (default) and hit "e" to edit and removed options "quiet" and "splash" ...
To the excellent comments from my colleagues, can you check what is the status of your memory?.
The reason is that you can expect random processes to be killed if memory is starving, but also I've seen core parts of the system going mad (or stressed) under heavy swap to disk.
I don't think is a hardware problem, as you can move the mouse, I think ...
This morning I sudo apt-get upgraded my machine and with that chrome was upgraded to the latest version (subversion .111 over .75) and now my buttons have returned. Guess it was just a chrome bug. Hope this helps another ubuntu user.
I'm not sure i this is the right place to share my experience. I have resolved a very long lasting problem, and wanted to post about it. Ubuntu 18.04 sssd ad integration works fine but a couple of hours later, ad users cannot login anymore, doing nothing some time later they can login.
I have been crazy for the last 6 months to figure out why their login are ...
This problem is a headache. I live in China so this is crucial to me. I have no idea why the lantern developers do not keep things static with respect to the Ubuntu versions (I use Ubuntu 14.04 and also 18.04), regardless of the updates. It is so frustrating and inconvenient.
Latest lantern asks (mid 2020) for this damn libc.so.6 library version 2.28, which ...
I have the same problem with my Asus Zenbook UX430UA, all you have to do, every time sound doesnt work put your laptop on Sleep Mode and the sound will work!
But, I still have problem headphones doesnt work!
As you discovered, it's easy to swap applications. Unfortunately, you also discovered that it doesn't mean that applications have parity.
With LXDE and LXQt, as odd as this might seem, the file manager is responsible for managing the desktop. Not so with Dolphin, where KDE's Plasma does more of the heavy lifting (and ultimately kind of ties together all the ...
The /etc/profile.d/modules.sh script is a remnant of previous Ubuntu LTS releases. It may safely be deleted.
$ sudo rm /etc/profile.d/modules.sh
After doing so, the error message will no longer appear.
The MySQL JDBC driver default behavior apparently changed when updating the OS.
The previous driver turned off transaction auto commits for Java batch updates - manually adding/running setAutoCommit(false) on the data connection dropped the run time back to normal (apparently it was running atomic transactions for 1000 some inserts).
This is a good example ...
I have applied this for my Airpods:
sudo nano /lib/systemd/system/bluetooth.service
sudo systemctl daemon-reload
sudo systemctl restart bluetooth
for those who are looking for a command-line solution, here you go:
first of all, you can list the existing VPN connections you created under this path:
sudo \ls -l /etc/NetworkManager/system-connections/
after finding which VPN connection you want auto-connect, edit the corresponding file (my-VPN in my case)
sudo \vi /etc/NetworkManager/system-connections/...
You have to create something that is called alias interface. I'm not familiar with how to configure this on Ubuntu Server, as I used only Debian and RedHat/CentOS on servers, and Ubuntu only on desktop. However, there is some answer here that might be useful to you: How do I add an additional IP address to an interface in Ubuntu 14
I had the same problem running Lubuntu 20.10, 5.8 kernel, in an old Macbook 2006.
In my case the solution was to mask gpe17 using boot parameter
I added boot parameter acpi_mask_gpe=0x17 to GRUB and rebooted.
Add acpi_mask_gpe=0x17 to /etc/default/grub line GRUB_CMDLINE_LINUX_DEFAULT, then run update-grub and reboot.
That solved the high CPU utilization.
I also encountered this same issue after following an online article to install nvidia drivers - following is the error I got and how I fixed it
libnvidia-gl-450-server: Depends: libnvidia-common-450-server but it
is not installed Depends: libgcc1 (>= 1:4.2) but
1:8.4.0-1ubuntu1~18.04 is installed libnvidia-gl-450-server:i386:
Open Software & Update > Ubuntu Software (tab) >
Make sure you have all the sources selected under the heading "Downloadable from the internet"
Under "Download from:", select "Main server".
Here's a screenshot of the window
Restart the terminal session (i.e close and reopen the terminal)
You should now be able to run ...
If it is an Acer, you might need to carry out an extra step :
Follow these steps:
They assume that you are installing Ubuntu, but might also be required for booting from a Live USB
Make sure your UEFI is up to date.
In UEFI, you must set a supervisor password. Once the supervisor password is set, some new menus are accessible.
Enter the "Select an UEFI ...
Well, I just had this issue in an updated 20.04 with NVidia, and this was the first search result. Later I found the solution in the old X-Plane forums: https://questions.x-plane.com/5090/linux-failed-request-badvalue-integer-parameter-operation?show=5146#c5146
Our user account must be included in the video group: sudo adduser $USER video
Did you remove the GRUB package? Deleting Ubuntu is never a good alternative, but which ever suits you fine is okay.For reference you can check this to see if you have followed this
Have you added any third party repository? If yes, please try remove or disable them. Also, clear your "apt" cache and. To the steps bellow, you need to open a terminal and be confortable with it.
To remove/clean third party repositories:
If they were added as includes to "sources.list":
sudo rm -f /etc/apt/sources.list.d/*
If they ...
You might be lacking the aliases for controlling systemd. This aliases were created in some distributions of linux as a way to easy the transition.
You are better off learning and using systemctl to control it.
Learn more here: https://www.freedesktop.org/software/systemd/man/systemctl.html
In your case the proper command is:
~# systemctl start process
As @mariaczi found out, the problem is, that there isn't enough RAM for MySQL to start.
I tried to add swap space, but without success. Maybe this is not possible on my virtual server.
I finally ended up with adding the following to /etc/my.cnf:
After that, I restarted the server and I was able to use MySQL.
I was having boot time as 3-4 minutes because of this plymouth service taking 1 minute 30 seconds. What fixed my boot time was updating the kernel from 5.4(my default) to 5.9 in Ubuntu 20.
update your kernel
Let's increase your /swapfile from 2G to 4G...
Note: Incorrect use of the dd command can cause data loss. Suggest copy/paste.
In the terminal...
sudo swapoff -a # turn off swap
sudo rm -i /swapfile # remove old /swapfile
sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
sudo chmod 600 /swapfile # set proper file protections
The newest Macs can have a SSD that requires a driver that your version of Ubuntu may not have. You should make sure you are installing the latest version of Ubuntu. The versions of macOS available to your Mac have a built‑ in driver for this type of drive. Also, Apple supplies a driver that allows Windows 10 to be installed on this type of drive. If you can ...
I had a different wifi driver but I think this is the same problem. I solved it by following the direction in the following link How to install Wi-Fi driver for Realtek RTL8821CE on Ubuntu 18.04?
You can also check if there is the source code for your driver so you install it by yourself.
It is mostly because of driver issue. Installed driver and system configuration is not properly connected.
Find the driver installed in your computer. search + software update > driver > additional driver
In my case, I found that configuration was set to initialConfiguration which is not configured in system as well. so there is no way, Ubuntu can ...
The solution sent above works for some PCs, but not for all. I tested solutions for a long time that I could find in the documentation or on forums and this was the only one that worked.
So here is a script that I created that you can add when starting a session (unfortunately not for the entire computer because PulseAudio is a service that runs ...
I'm not sure what the answer to you question is however, it probably isn't a lack of ability to use the sudo command. I've since instances where root is denied access to a file/folder. So what's the proof with regard to sudo? Try to do something routine that only root can do. Everyone can do "ls" on almost every directory in the system but only ...
I had similar issues as @sef. I have a Lenovo laptop with Geforce MX150, running ubuntu 20. To fix my noisy fan I also had to:
$ ubuntu-drivers devices
$ sudo ubuntu-drivers autoinstall
but in addition I also had to go to "nvidia x server settings", and set "PRIME Profiles" to "NVIDIA on demand", reboot. If I now open "...
I studied and found that this problem is related to regulatory domain change although I am not sure how that happened.
There is a Wireless regulatory database (used by CRDA) that has country specific rules.
it was country US: DFS-FCC which was working fine with channel 149 @ 80Mhz.
Somehow it changed to country 00: DFS-UNSET in the middle of the day when I ...