Install libpng12 on ubuntu 22.04
I need to install lipng12-0 on ubuntu 22.04 to make an old Canon printer work.On 20.04, I followed the instructions given here : How to correctly install libpng12-0 on the Ubuntu 19.10?But it seems to...
View ArticleHow to switch between Gnome & MATE desktops?
When I reinstalled the OS, I had only one, Ubuntu 22.04 Gnome desktop, option. I got used to MATE desktop. Therefore I installed MATE desktop too. Having two desktop environments, MATE & Gnome, how...
View ArticleDriver Issue with IntelĀ® Wi-Fi 6E AX210 on Ubuntu 22.04.1 LTS -- reporting...
I run into a well-known problem that was actually already widely discussed on the web. However, I unfortunately could not solve the problem yet.I recently replaced the Wifi network adapter into a new...
View ArticleUbuntu dual boot with Windows on two separate hard drives
I would like to install Ubuntu on my HP PC in dual boot with Windows on two separate disks and put the Ubuntu boot on a separate disk from the Windows one, I wanted to know how safe it was.A thousand...
View ArticleHow can i reduce my desktop scale
I'm new on ubuntu and my resolution is 1366x768 and scale for big for me. How can i reduce scale %100 to like a %75-80 ?Thanks for helps and sorry for my English, have a nice day..
View Articlemy screen goes black after 30 seconds of inactivity in Ubuntu 22.04
My screen goes black after 30 seconds of inactivity and when I press a key, it shows where it was and does not need any password. This problem won't occur when I use it for watching videos in platforms...
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How to login into xrdp/xorg in hyper-v? When I enter ubuntu login credentials...
Disabling the Enhanced session mode let's me enter into ubuntu without xrdp login dialogue box but it results in not able to copy clipboard and full screen doesn't work.I don't have much experience...
View Articleinsert prefix to each line of file if line is not blank otherwise do...
I would like sed do do something to each line of a file.if line is NOT blank, do something, (insert prefix_01 before line text),if line is blank, (including spaces, tabs or whatever not printable), do...
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Can't install UNetbootin in ubuntu 22.04 to flash a USB drive. What to do?
I want update BIOS with FreeDOS. I want to use Ubuntu to make a live USB for FreeDOS. I tried using UNetbootin, but I can not install UNetbootin in Ubuntu 22.04.How can I make a live USB image image...
View ArticleBootable usb to format hard drive
Is there any way to boot from USB and completely format the hard drive.The reason I want to do this is because my Ubuntu 22.04 is not able to start anymore.
View ArticleHow to create sub-interface
I am trying to create a sub-interface via netplan in Ubuntu Server 22.04. Unfortunately this doesn't work. I'd rather not use VLANs, but if you could do it with VLAN it would be a great help. I feel...
View ArticleWhy grep command does not find tables with pattern I provide?
I'm using Kubuntu 22.04. I try to find all tables with cms subname in my laravel projects (stored in /mnt/_work_sdb8/wwwroot/lar subdirectory) that are under migrations. To do so, I run:grep -Hrn -A 5...
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Unexpectedly high memory usage in Ubuntu 22.04.3 LTS
I have noticed for a while now that my system seems to be using up my memory much more quickly than I would expect. When it gets like this, I do notice it slowing down a bit at time, and my fan starts...
View ArticleCan't run Firefox in Ubuntu 22.04
It worked at some point, but now it doesn't work. When I try to run it from the CLI I get this error:cannot set memlock limit to 524288:524288: Operation not permittedWhen I run it from the menu,...
View Article22.04 Airplane mode activated whenever lid closes/opens, screen switches...
I have a 2022 HP 14" Spectre x360, which can flip into tablet mode and has an accelerometer to switch the screen orientation. However, when I installed Ubuntu 22.04 on it, I found that switching it in...
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Cannot boot. TPM Interrupt not working
I have installed Ubuntu 22.04 on my Acer C720 Chromebook. When I cleared the cache, I tried to boot Ubuntu with Ctrl+Alt+L, which resulted in this screen:[ 0.260118] tpm tpm0: [Firmware Bug]: TPM...
View ArticleUsing an external touchscreen on Ubuntu 22.04 Wayland problem
I have an external AOC 16T2 touchscreen, which is recognized as an touchscreen.In X11 this works fine in extended desktop/join displays after mapping the touch input to the external screen. xinput...
View ArticleCan't get a video file to play on Firefox browser
I created a video file with OBS. I put it on a website to share with a class I am teaching. When I try to see the video on my Firefox browser (I am running Ubuntu 22.04 and Firefox 132.0.2 ).When I...
View Articleubuntu 22.04 audio output not working (dummy audio)
I have just upgraded my ubuntu to 22.04 but the audio is not working.In the setting, the audio option has only "Dummy Output" and the test fails.I have tried to do what is reported here and here but...
View ArticleWhy nmtui does not provide wifi priority setting
I'm running Ubuntu on a laptop. I sometimes run it on different known wifi. How come we can not set wifi priority in nmtui? I had to do it with nmcli. Will option be added to mntui?
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How do I calibrate Laptop screen in Ubuntu 22.04 OR How do I know what my...
I am using Ubuntu 22.04 LTS on an HP Laptop. In Settings, there is a section for Colors under which my Laptop Screen is Not calibrated and when I try to Calibrate it, the button is greyed out, as shown...
View ArticleDisk space showing more usage than what is actually used
On one Hetzner server I can't figure out why my disk drive is taking more space than what is actually running on it. df -h results:Filesystem Size Used Avail Use% Mounted onudev 63G 0 63G 0% /devtmpfs...
View ArticleChronic irregular ubuntu session freeze on POS device - Hard reboot required
We are facing an Ubuntu session crash on irregular intervals (2-4 times a week) on both ourPOS devices in an organic shop in Amersfoort. The problem has persisted for over 10 monthsand withstood...
View ArticleDrives are visible in BIOS and Disk utility but not in Files
I just recently switched from Windows 10 to Ubuntu because I was having trouble resetting my computer, so I Formatted my Windows SSD and installed Ubuntu, But Im having trouble accessing my drives.They...
View ArticleUbuntu 22.04 - "Connection Failed: Activation of Network Failed" - VMware
I recently installed an Ubuntu 22.04 distribution on my Virtual Machine (VMware Workstation 16 Player) in order to run Docker. In order to connect the VM to the internet, I'm using an USB WiFi Adapter...
View ArticleHow do i uninstall all of the pre-installed games on Ubuntu 22.04 LTS
How can I uninstall all of the pre-installed games in Ubuntu?I do not use these games and would like to remove them all. I am using a fresh installation of Ubuntu 22.04 LTS.
View ArticleUbuntu 22.04 randomly freezes when I close the lid of the laptop
I really have this problem since long ago, but despite extensive research I did not find any satisfactory solution.The main issue is the laptop randomly freezes after I close the lid (sometimes it...
View ArticleInstalling Ubuntu 22.04 with full disk encryption (LUKS) and swap partitions
I`m just trying to install Ubuntu 22.04 in my notebook, but I need to have full disk encryption enabled and I would like to define the size of my swap partition.When searching for answers I saw...
View ArticleRoot Filesystem Optimization for Xilinx MPSoC
We are planning to migrate from PetaLinux to Ubuntu on our custom board based on the Xilinx MPSoC. We have successfully brought up the custom board using the certified minimal Ubuntu Desktop 22.04...
View ArticleVLC fails network stream in Ubuntu 22.04
I use VLC to monitor a DVR via RTSP. Suddenly it stopped connecting. I have tried everything I can find, but it still fails to connect.VLC version is 3.0.16 Vetinari. It used to work, then about a week...
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