https://pop.com.sgExplosive pop stories with broad entertainment appeal.en-usWed, 29 Jul 2026 03:10:48 -0400https://pop.com.sg/windows-11-booting-causes-weird-non-critical-grub-errors.htmlhttps://pop.com.sg/windows-11-booting-causes-weird-non-critical-grub-errors.htmlProbably starting with some update for Windows 11 1-2 month ago, my dual-boot setup has been showing some weird behavior (having worked flawlessly before that). After I boot Windows 11, starting up......Wed, 29 Jul 2026 07:06:08 -0400https://pop.com.sg/why-doesn-039-t-the-command-ls-file-work.htmlhttps://pop.com.sg/why-doesn-039-t-the-command-ls-file-work.htmlI've been studying about the command line and learned that | (pipeline) is meant to redirect the output from a command to the input of another one. So why does the command ls | file doesn't work? ......Wed, 29 Jul 2026 06:37:16 -0400https://pop.com.sg/what-is-the-lock-prefix-for-a-file.htmlhttps://pop.com.sg/what-is-the-lock-prefix-for-a-file.htmlI have a directory of notes on my system. When I enter ls -A, I see my regular files, plus some files prefixed with .~lock. and ended with # For instance, ls -A gives: Compiling.odt .~lock....Wed, 29 Jul 2026 06:35:07 -0400https://pop.com.sg/what-does-run-command-as-a-login-shell-do.htmlhttps://pop.com.sg/what-does-run-command-as-a-login-shell-do.htmlI have a few separate programs installed, some of which require me to go into my GUI terminal settings and enable/disable the "Run command as a login shell" option to get either working. Example: I ...Wed, 29 Jul 2026 06:33:03 -0400https://pop.com.sg/wsl-issue-with-importing-packages-and-opening-files-within-python-scri.htmlhttps://pop.com.sg/wsl-issue-with-importing-packages-and-opening-files-within-python-scri.htmlI've recently started using the WSL with Ubuntu version: Description: Ubuntu 20.04.2 LTS Release: 20.04 Prior to this I have installed all packages through the Windows Powershell Terminal......Wed, 29 Jul 2026 06:32:01 -0400https://pop.com.sg/which-command-is-linux-039-s-netview.htmlhttps://pop.com.sg/which-command-is-linux-039-s-netview.htmlIn windows, I can use netview to see all the computers on the LAN network, but what's the corresponding command on linux?...Wed, 29 Jul 2026 06:31:39 -0400https://pop.com.sg/partition-alignment-confusion-duplicate.htmlhttps://pop.com.sg/partition-alignment-confusion-duplicate.htmlI have a new Samsung 840 250GB SSD on the way, and I want to make sure that everything is running optimally after install. I've spent many frustrating hours on the internet trying to understand ho......Wed, 29 Jul 2026 06:16:49 -0400https://pop.com.sg/how-can-i-change-xfce-bottom-panel-to-the-top.htmlhttps://pop.com.sg/how-can-i-change-xfce-bottom-panel-to-the-top.htmlI am using Xubuntu 12.10 and would like to change the panel which is currently on the bootm to the top. This is the opposite of what most people using Unity want to do. I have done this in the ......Wed, 29 Jul 2026 05:54:54 -0400https://pop.com.sg/what-is-the-meaning-of-y-in-this-command-duplicate.htmlhttps://pop.com.sg/what-is-the-meaning-of-y-in-this-command-duplicate.htmlI don't understand the meaning of -y. command: apt-get install -y clickhouse-client & sudo apt-get install -y passenger There are many commands have -y....Wed, 29 Jul 2026 05:44:40 -0400https://pop.com.sg/user-masoud-masoumi-moghadam-ask-ubuntu.htmlhttps://pop.com.sg/user-masoud-masoumi-moghadam-ask-ubuntu.htmlQ&A for Ubuntu users and developers...Wed, 29 Jul 2026 05:40:26 -0400https://pop.com.sg/is-it-safer-to-install-two-oses-on-different-hard-drives-or-just-diffe.htmlhttps://pop.com.sg/is-it-safer-to-install-two-oses-on-different-hard-drives-or-just-diffe.htmlIf I dual boot install both Ubuntu and Windows, is it safer to install them on two different hard drives than different partitions on the same hard drive? What risks may be involved? For example,......Wed, 29 Jul 2026 05:27:24 -0400https://pop.com.sg/mount-cifs-problems-on-ubuntu-18-04.htmlhttps://pop.com.sg/mount-cifs-problems-on-ubuntu-18-04.htmlI have a two similar Ubuntu servers 18.04 (4.15.0-39-generic #42-Ubuntu SMP Tue Oct 23 15:48:01 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux) and trying to mount windows files server share on it. On one ...Wed, 29 Jul 2026 05:20:15 -0400https://pop.com.sg/how-to-install-libelf-devel-or-elfutils-libelf-devel-in-ubuntu-18-04-h.htmlhttps://pop.com.sg/how-to-install-libelf-devel-or-elfutils-libelf-devel-in-ubuntu-18-04-h.htmlubuntu 18.04 bionic wifi driver rtl8723be i ran this commands in the terminal git clone https://github.com/lwfinger/rtlwifi_new.git cd rtlwifi_new git checkout extended sudo make install make c......Wed, 29 Jul 2026 05:17:13 -0400https://pop.com.sg/how-to-install-python3-pywavelets.htmlhttps://pop.com.sg/how-to-install-python3-pywavelets.htmlI would like to install a package for wavelet analysis in python and could just find this one here. https://www.pybytes.com/pywavelets/ It seems that this package is not part of Ubuntu repositorie......Wed, 29 Jul 2026 05:13:57 -0400https://pop.com.sg/can-i-use-a-c-c-compiler.htmlhttps://pop.com.sg/can-i-use-a-c-c-compiler.htmlI shifted to Ubuntu 10.10 now I am facing problem to have C/C++ compiler. What are the possible ways so that I can use C/C++ compiler using all the libraries (like graphic, math, conio, stdlib, etc......Wed, 29 Jul 2026 04:54:34 -0400https://pop.com.sg/dependency-is-not-satisfiable-error-when-trying-to-install-an-applicat.htmlhttps://pop.com.sg/dependency-is-not-satisfiable-error-when-trying-to-install-an-applicat.htmlWhen I try to install glchess in Synaptic I get this error At a certain time I installed the Gnome desktop and a lot of games that came with it and then uninstalled the games. Now I want chess ba......Wed, 29 Jul 2026 04:52:34 -0400https://pop.com.sg/change-clock-resolution-to-1000-hz.htmlhttps://pop.com.sg/change-clock-resolution-to-1000-hz.htmlI am running Ubuntu 12.04 and I need to change the clock resolution to 1000 Hz (now it's 250 Hz, the default value). I understand that I have to set it and then recompile the kernel, as for example ...Wed, 29 Jul 2026 04:50:03 -0400https://pop.com.sg/issue-with-ubuntu-admin-tools-that-do-not-detect-wifi-properly.htmlhttps://pop.com.sg/issue-with-ubuntu-admin-tools-that-do-not-detect-wifi-properly.htmlI've done a fresh and clean install of Ubuntu Server 20.04 LTS on a NUC 10i7 Network connection is done thru wifi, and this message is written from Firefox installed on this server, so it is workin......Wed, 29 Jul 2026 04:47:35 -0400https://pop.com.sg/android-studio-emulator-slow-performance-in-android-studio-on-ubuntu.htmlhttps://pop.com.sg/android-studio-emulator-slow-performance-in-android-studio-on-ubuntu.htmlOn my mac Android Studio is usable, however on my Linux Ultrabook, normally a fast machine, Android Studio and the Emulator are so slow (5 mins to start, one response or less per minute) that they ......Wed, 29 Jul 2026 04:47:07 -0400https://pop.com.sg/ubuntu-20-04-pc-regularly-accessing-the-raid-disk-could-the-barrier-op.htmlhttps://pop.com.sg/ubuntu-20-04-pc-regularly-accessing-the-raid-disk-could-the-barrier-op.htmlI have a new desktop PC on which I installed Ubuntu 20.04 (server edition). The two hard disks (not SSDs) are in a RAID formatted with ext4. The disks are regularly making noises like they are being ...Wed, 29 Jul 2026 04:29:36 -0400https://pop.com.sg/connection-freeze-ubuntu-20-04-lts-desktop-sharing.htmlhttps://pop.com.sg/connection-freeze-ubuntu-20-04-lts-desktop-sharing.htmlHi my problem is that when I use vncviewer(mac) to connect to my ubuntu 20.04 lts the wifi connection freeze I have to disconnet my wifi dongle on ubuntu to make my wifi connection on ubuntu again......Wed, 29 Jul 2026 04:28:02 -0400https://pop.com.sg/lock-builtin-laptop-keyboard-but-keep-an-external-usb-keyboard-functio.htmlhttps://pop.com.sg/lock-builtin-laptop-keyboard-but-keep-an-external-usb-keyboard-functio.htmlI have a laptop but also an external USB keyboard connected to it. Is it somehow possible to lock the built-in laptop keyboard (i.e. keys pressed should have no effect) but keep the external one ...Wed, 29 Jul 2026 04:22:30 -0400https://pop.com.sg/how-to-setup-apache2-virtualhosts-on-your-home-directory-on-ubuntu-14-.htmlhttps://pop.com.sg/how-to-setup-apache2-virtualhosts-on-your-home-directory-on-ubuntu-14-.htmlI am trying to setup my apache2 virtualhost to run applications from an apps directory on my home directory. home/myusername/apps/application1 Here are the steps there I am currently doing: 1) ...Wed, 29 Jul 2026 04:11:20 -0400https://pop.com.sg/18-04-change-shortcut-for-switching-workspace.htmlhttps://pop.com.sg/18-04-change-shortcut-for-switching-workspace.htmlI couldn't find a way to change the shortcut for moving between workspaces (Ctrl+Alt+Up/Down/Left/Right). When I go to the keyboard settings, I can change the shortcuts which let me "jump" to a spe......Wed, 29 Jul 2026 03:57:47 -0400https://pop.com.sg/ripping-dvd-with-handbrake-no-file-found-during-scan.htmlhttps://pop.com.sg/ripping-dvd-with-handbrake-no-file-found-during-scan.htmlI'm trying to rip a DVD with HandBrake (I own the original). No single file is found during the scan despite having installed the libdvdcss4 package. There are several errors occurring in the activ......Wed, 29 Jul 2026 03:55:13 -0400https://pop.com.sg/ubuntu-20-04-no-sound-out-of-bluetooth-headphones.htmlhttps://pop.com.sg/ubuntu-20-04-no-sound-out-of-bluetooth-headphones.htmlThis is on a machine I upgraded from 18.04 to 20.04 a few days ago. No issues at all getting sound to play out of headphones on 18.04. The headphones are paired with Bluetooth. I unpaired and repa......Wed, 29 Jul 2026 03:52:08 -0400https://pop.com.sg/can-039-t-login-as-mysql-user-root-from-normal-user-account-in-ubuntu-.htmlhttps://pop.com.sg/can-039-t-login-as-mysql-user-root-from-normal-user-account-in-ubuntu-.htmlI just installed Ubuntu 16.04 LTS along with the packages php, mariadb and nginx. I ran mysql_secure_installation and changed the root password. Now when I try to login to mysql using the root acc......Wed, 29 Jul 2026 03:42:27 -0400https://pop.com.sg/good-filesystem-for-tmp.htmlhttps://pop.com.sg/good-filesystem-for-tmp.htmlI'm thinking of having /tmp on its own partition... what would be a good filesystem to format it with? The reason I ask is because the data being stored in /tmp is not permanent, so I don't need ...Wed, 29 Jul 2026 03:35:32 -0400https://pop.com.sg/warning-killing-the-server-while-running-scrcpy.htmlhttps://pop.com.sg/warning-killing-the-server-while-running-scrcpy.htmlToday, I was trying to operate my mobile phone using my Laptop (Ubuntu 21.10). I found an interesting application that allows me to operate my mobile phone using Ubuntu. The application is known as ...Wed, 29 Jul 2026 03:24:48 -0400https://pop.com.sg/xinput-calibrator-how-is-the-calibration-data-generated.htmlhttps://pop.com.sg/xinput-calibrator-how-is-the-calibration-data-generated.htmlI've been playing around with this touchscreen which uses eGalax drivers. OS of the board it's connected to is Ubuntu LTS 16.04.01 For some reason, I can't quite get it calibrated just right, but ......Wed, 29 Jul 2026 03:09:29 -0400https://pop.com.sg/cannot-mount-microsd-card.htmlhttps://pop.com.sg/cannot-mount-microsd-card.htmlI am trying to mount my micro SD card but it shows write-protected. I have tried disabling using the notch on the adapter. I also ran the following commands: lsblk -p /dev/mmcblk0 ......Wed, 29 Jul 2026 02:49:17 -0400https://pop.com.sg/how-to-uninstall-nomachine.htmlhttps://pop.com.sg/how-to-uninstall-nomachine.htmlI want to remove 'NOMACHINE' from my computer, but I can't see it in software manage. I tried to delete the files but, some are locked. How should I proceed?...Wed, 29 Jul 2026 02:38:20 -0400https://pop.com.sg/how-could-i-run-this-command-as-a-root-duplicate.htmlhttps://pop.com.sg/how-could-i-run-this-command-as-a-root-duplicate.htmlmohamed@MoHy:~$ airmon-ng Run it as root so how could i run this command as a root ?...Wed, 29 Jul 2026 02:23:43 -0400https://pop.com.sg/vpn-not-reconnect-with-cisco-anyconnect-secure-mobility-client.htmlhttps://pop.com.sg/vpn-not-reconnect-with-cisco-anyconnect-secure-mobility-client.htmlI try to connect other server by vpn with Cisco AnyConnect. For the first time, it connects. But if I try to reconnect, it shows: Okay, but connection has been established for the first time. I pe......Wed, 29 Jul 2026 02:18:27 -0400https://pop.com.sg/how-do-i-disable-the-touchpad-while-typing-ubuntu-18-04.htmlhttps://pop.com.sg/how-do-i-disable-the-touchpad-while-typing-ubuntu-18-04.htmlI asked this a year ago, with the new (awful) upgrade 18.04 upgrade, the fix got removed and reapplying it doesn't work. I have a laptop, and while typing, my palm touches the touchpad, which make......Wed, 29 Jul 2026 02:00:53 -0400https://pop.com.sg/how-to-check-where-apache-is-running-or-listening-on-localhost.htmlhttps://pop.com.sg/how-to-check-where-apache-is-running-or-listening-on-localhost.htmlI just installed Apache on my Ubuntu , But when I write localhost: it redirect me to a page. Welcome to nginx! If you see this page, the nginx web server is successfully installed. and w......Wed, 29 Jul 2026 01:53:23 -0400https://pop.com.sg/how-to-solve-simg2img-error-invalid-sparse-file-format-at-header-magi.htmlhttps://pop.com.sg/how-to-solve-simg2img-error-invalid-sparse-file-format-at-header-magi.htmlI installed android-tools-fsutils using the terminal on Ubuntu 16.04 LTS and ran simg2img to extract RemixOS's system.img file but each time I get the same error - "Invalid sparse file format at he......Wed, 29 Jul 2026 01:49:48 -0400https://pop.com.sg/remote-desktop-22-04-from-mac.htmlhttps://pop.com.sg/remote-desktop-22-04-from-mac.htmlI had to tinker for a while before realizing my mac was confused by the default setting for creating vnc connections on ubuntu. Here's a summary to enable vnc access to your ubuntu desktop Settings......Wed, 29 Jul 2026 01:47:54 -0400https://pop.com.sg/mysql-access-denied-error-keeps-coming-back.htmlhttps://pop.com.sg/mysql-access-denied-error-keeps-coming-back.htmlAbout every month, I get the following error: MySQL Error: : 'Access denied for user 'root'@'localhost' I navigate to this StackOverflow question on how to deal with the error, and then I get bac......Wed, 29 Jul 2026 01:43:45 -0400https://pop.com.sg/how-can-i-detect-motion-in-a-long-mostly-dull-video.htmlhttps://pop.com.sg/how-can-i-detect-motion-in-a-long-mostly-dull-video.htmlI need a way to scan through hours and hours of recorded video (mp4, mov, avi, doesn't matter, I can fix that) to search for motion. The videos consist of many, many hours of dull nature scenes lik......Wed, 29 Jul 2026 01:39:36 -0400https://pop.com.sg/unable-to-upgrade-dell-vostro-3558-laptop-to-ubuntu-16-04lts-from-14-0.htmlhttps://pop.com.sg/unable-to-upgrade-dell-vostro-3558-laptop-to-ubuntu-16-04lts-from-14-0.htmlI recently upgraded my laptop (Dell Vostro 3558, with Ubuntu 14.04 inbuilt) to Ubuntu 16.04, but it was not working properly. When I upgraded it, a notification said that the system may be unstable......Wed, 29 Jul 2026 01:38:48 -0400https://pop.com.sg/ubuntu-screen-sharing-on-google-chrome-not-working.htmlhttps://pop.com.sg/ubuntu-screen-sharing-on-google-chrome-not-working.htmlI'm trying to share my screen using Google Chrome or Microsoft Teams and I only can share the browser, I can't share my entire screen, it appears black: Trying to select share full screen but it's......Wed, 29 Jul 2026 01:38:44 -0400https://pop.com.sg/computer-won-039-t-power-off.htmlhttps://pop.com.sg/computer-won-039-t-power-off.htmlMy computer suddenly won't shutdown or suspend anymore. Disks power down, but the computer won't. I have to shut down the computer by holding the power button. The shutdown process ends with a "...Wed, 29 Jul 2026 01:37:56 -0400https://pop.com.sg/does-linux-have-folders-like-appdata-and-programdata.htmlhttps://pop.com.sg/does-linux-have-folders-like-appdata-and-programdata.htmlOn Windows, these folders get filled up with all kinds of nonsense that programs you uninstalled left behind. ProgramData is a hidden C folder, and %appdata% is usually accessed via search. They co......Wed, 29 Jul 2026 01:36:18 -0400https://pop.com.sg/what-is-the-difference-between-and.htmlhttps://pop.com.sg/what-is-the-difference-between-and.htmlWhat is the difference between ls > and ls >>? I need to understand this for my GCSE computing but don't know what the difference is....Wed, 29 Jul 2026 01:32:33 -0400https://pop.com.sg/how-can-i-install-ironahk-on-ubuntu-lts-18-04.htmlhttps://pop.com.sg/how-can-i-install-ironahk-on-ubuntu-lts-18-04.htmlI am trying to install Linux equivalent of Autohotkey on Ubuntu LTS 18.04. a) I have followed the following guide: Building IronAHK from source on Ubuntu I have tried these: sudo apt-get -y ins......Wed, 29 Jul 2026 01:25:50 -0400https://pop.com.sg/an-example-of-when-we-need-yes-command.htmlhttps://pop.com.sg/an-example-of-when-we-need-yes-command.htmlWhat is the usage of yes command. I follow the man yes also I try that but I want to know when we need to use this command. You can follow man page to know the usage of yes. But I am looking for a ......Wed, 29 Jul 2026 01:19:09 -0400https://pop.com.sg/external-monitor-resolution-is-1024x768-cvt-xrandr-distorts-the-output.htmlhttps://pop.com.sg/external-monitor-resolution-is-1024x768-cvt-xrandr-distorts-the-output.htmlI have a HP 2009v LCD monitor with VGA input which is plugged to my laptop with Intel graphics card. Windows recognizes the maximum resolution (1600x900) and displays the desktop correctly. Ubuntu ......Wed, 29 Jul 2026 01:05:33 -0400https://pop.com.sg/has-netstat-been-replaced-with-a-new-tool.htmlhttps://pop.com.sg/has-netstat-been-replaced-with-a-new-tool.htmlHas netstat been replaced by a newer program? I noticed netstat is part of the nettools package which was replaced by ip command. What program should i be using to check see open/listening ports ......Wed, 29 Jul 2026 01:02:48 -0400https://pop.com.sg/docker-install-tools-run-command-on-existing-container.htmlhttps://pop.com.sg/docker-install-tools-run-command-on-existing-container.htmlI'm using Dokku to run some apps on an Ubuntu 14.04 server. Dokku creates the Docker container with all the stuff in them to run. I'd like to connect to the running container somehow and run apt-get ...Wed, 29 Jul 2026 00:59:54 -0400https://pop.com.sg/drivers-for-a-brother-mfc-240c-printer-they-still-exist.htmlhttps://pop.com.sg/drivers-for-a-brother-mfc-240c-printer-they-still-exist.htmlI'm trying to set up an old MFC-240c printer on an older box with Ubuntu 10.04 for a friend. I've found a couple of howtos but they all seem to be pretty out of date. They link to a page on the b......Wed, 29 Jul 2026 00:59:39 -0400https://pop.com.sg/how-to-use-cubic-to-create-a-custom-ubuntu-live-cd-image.htmlhttps://pop.com.sg/how-to-use-cubic-to-create-a-custom-ubuntu-live-cd-image.htmlHow do you install Cubic and use it to create a customized Ubuntu live CD *.iso file that can be burned to CD/DVD or copied to a bootable USB?...Wed, 29 Jul 2026 00:57:36 -0400https://pop.com.sg/how-does-accounts-service-work-with-lightdm.htmlhttps://pop.com.sg/how-does-accounts-service-work-with-lightdm.htmlI have added two users using the command useradd but they do no show up in the lightdm/unity-greeter login screen. So there is no way to graphically login for them. It seems Accounts Service (what......Wed, 29 Jul 2026 00:52:12 -0400https://pop.com.sg/how-to-wipe-format-entire-disk-using-gparted.htmlhttps://pop.com.sg/how-to-wipe-format-entire-disk-using-gparted.htmlWith gnome-disk-utility alias palimpsest there is an option to format entire disk with partitioning scheme "none" or something similar. How do I do that in gparted? (? is it the "loop" option ?) ......Wed, 29 Jul 2026 00:45:59 -0400https://pop.com.sg/is-it-possible-to-pause-abort-mdadm-reshape.htmlhttps://pop.com.sg/is-it-possible-to-pause-abort-mdadm-reshape.htmlSaturday I added a new drive to my mdadm array, and the reshape process is taking a long time. Unfortunately there's a nasty storm coming, and I'm likely going to lose power, which will probably do......Wed, 29 Jul 2026 00:44:20 -0400https://pop.com.sg/resize-vm-partition-without-erasing-data.htmlhttps://pop.com.sg/resize-vm-partition-without-erasing-data.htmlI want to resize a partition from a virtual machine without erasing any data. I only have access to this VM via SSH, so I am not able to run a live CD. The OS is Ubuntu 14.04.2 LTS. My current ...Wed, 29 Jul 2026 00:35:41 -0400https://pop.com.sg/help-with-ubuntu-18-04-and-gopro-hero-6-black.htmlhttps://pop.com.sg/help-with-ubuntu-18-04-and-gopro-hero-6-black.htmlWhen I connect my camera to my PC, on the camera screen, a USB Connected message appears, but I can't find it on Nautilus like a USB stick. If I put the microSD on the PC, I can access it from Nau......Wed, 29 Jul 2026 00:33:25 -0400https://pop.com.sg/is-it-possible-to-set-dash-to-show-a-black-background-instead-of-gener.htmlhttps://pop.com.sg/is-it-possible-to-set-dash-to-show-a-black-background-instead-of-gener.htmlI prefer Natty's "black" dash background as opposed to the color-adopting background found in Oneiric. Will Oneiric have a setting to change the default color and allow the dash to have a black ...Wed, 29 Jul 2026 00:24:11 -0400https://pop.com.sg/how-to-set-intel-idle-max-cstate-1.htmlhttps://pop.com.sg/how-to-set-intel-idle-max-cstate-1.htmlHow can i set intel idle max cstate to 1 and how can i check when it will done. i have a freeze problem because of bay trail cores. i tried kernel 4.5 4.1.12 4.4 but freeze problem still contin......Wed, 29 Jul 2026 00:21:17 -0400https://pop.com.sg/my-miredo-client-don-039-t-work-after-upgrading-to-15-10.htmlhttps://pop.com.sg/my-miredo-client-don-039-t-work-after-upgrading-to-15-10.htmlI have used miredo in 15.04 ,and it works very well.But after I upgrad my Ubuntu to 15.10 yesterday,it doesn't work any more.Here is some information. $ ifconfig teredo teredo Link encap:UNSPEC ...Wed, 29 Jul 2026 00:16:06 -0400https://pop.com.sg/network-socket-icon-not-showing-up-in-tray-lubuntu-18-04.htmlhttps://pop.com.sg/network-socket-icon-not-showing-up-in-tray-lubuntu-18-04.htmlI've added the OpenVPN configuration in lubuntu 18.04 32 bit. But the network socket icon is not showing up in the tray anymore. So I'm unable to use OpenVPN from GUI. Images from some online tutor......Wed, 29 Jul 2026 00:13:12 -0400https://pop.com.sg/what-commands-exactly-should-replace-the-deprecated-apt-key.htmlhttps://pop.com.sg/what-commands-exactly-should-replace-the-deprecated-apt-key.htmlSetting up keys for a local repository on a new ubuntu 20.10 virtual machine, I got a message that apt-key add was deprecated and I should read the apt-key(8) man page. The apt-key(8) man page is a ...Wed, 29 Jul 2026 00:11:58 -0400https://pop.com.sg/lenovo-w520-ubuntu-14-04-external-monitor-not-working.htmlhttps://pop.com.sg/lenovo-w520-ubuntu-14-04-external-monitor-not-working.htmlI have the W520 from Lenovo with Ubuntu 14.04, and would like to use it with an external monitor from Dell (U2515H). I connected the monitor through the display port with the laptop. I am using the ...Wed, 29 Jul 2026 00:08:29 -0400https://pop.com.sg/need-instructions-on-how-to-create-wpa-supplicant-conf-and-add-fast-re.htmlhttps://pop.com.sg/need-instructions-on-how-to-create-wpa-supplicant-conf-and-add-fast-re.htmlLike many other natty users on a university/academic network, I'm experiencing annoying frequent disconnects/hangs/delays. See, for instance here. I would like to learn how to add fast_reauth=0 t......Wed, 29 Jul 2026 00:04:25 -0400https://pop.com.sg/how-to-configure-wpa-supplicant-in-ubuntu-server-20-04.htmlhttps://pop.com.sg/how-to-configure-wpa-supplicant-in-ubuntu-server-20-04.htmlFor esoteric reasons I have a server which only has WiFi access to the network. By copying the necessary dpkg files on a removable drive I've managed to install wpa_supplicant. The thing that's bug......Tue, 28 Jul 2026 23:53:17 -0400https://pop.com.sg/where-can-i-download-dpkg-deb.htmlhttps://pop.com.sg/where-can-i-download-dpkg-deb.htmlI had a problem when trying to install/uninstall stuff on Ubuntu 20.04: dpkg: error: error trying to open /var/lib/dpkg/info/format: Not a directory E: Sub-process /usr/bin/dpkg returned an error c......Tue, 28 Jul 2026 23:52:31 -0400https://pop.com.sg/difference-between-039-cd-039-and-039-cd-039-in-unix-linux-duplicate.htmlhttps://pop.com.sg/difference-between-039-cd-039-and-039-cd-039-in-unix-linux-duplicate.htmlI am completely new to unix/linux OS. I have installed Ubuntu 16.04.2 LTS in my system. What is the difference between cd and cd .. ? I have opened a terminal and executed the following command:......Tue, 28 Jul 2026 23:51:39 -0400https://pop.com.sg/dual-boot-windows-7-ubuntu-20-04-on-windows-legacy.htmlhttps://pop.com.sg/dual-boot-windows-7-ubuntu-20-04-on-windows-legacy.htmlMy brother gave me an old Windows 7 (legacy) in DualBoot with Ubuntu 16.10. Live-Ubuntu recognized that I already had a partition with Ubuntu on the HDD and suggested me to erase it with Ubuntu 20.......Tue, 28 Jul 2026 23:46:50 -0400https://pop.com.sg/very-low-internet-speed-when-using-pdanet-proxy-on-ubunto-20-04.htmlhttps://pop.com.sg/very-low-internet-speed-when-using-pdanet-proxy-on-ubunto-20-04.htmlI am new to Ubuntu, and I am using pdanet+ for repeating wi-fi connection because the place that is the wi-fi signal is good on it, it's so hot in the summer so I use my LG K350 phone with android ......Tue, 28 Jul 2026 23:44:43 -0400https://pop.com.sg/how-to-customize-desktop.htmlhttps://pop.com.sg/how-to-customize-desktop.htmlI'm very new to Linux and am having trouble understanding how to customize my desktop. I would love to have my desktop look like an image provided below, but I'm confused how to do so. Is that icon......Tue, 28 Jul 2026 23:44:25 -0400https://pop.com.sg/how-to-connect-from-mysql-to-web-application-duplicate.htmlhttps://pop.com.sg/how-to-connect-from-mysql-to-web-application-duplicate.htmlI have been trying to setup a local instance for a web application. I am new to MySQL and I can't understand how to actually connect this database to the actual web application sitting in the /va......Tue, 28 Jul 2026 23:43:27 -0400https://pop.com.sg/disable-password-authentication-in-ssh.htmlhttps://pop.com.sg/disable-password-authentication-in-ssh.htmlI followed the following guide: help.ubuntu.com/community/SSH/OpenSSH/Configuring But it is still possible to ssh into the machine by entering a password (tried on win with putty) Any advice?...Tue, 28 Jul 2026 23:42:30 -0400https://pop.com.sg/failed-to-acquire-the-virtualbox-com-object-on-ubuntu-14-04-lts.htmlhttps://pop.com.sg/failed-to-acquire-the-virtualbox-com-object-on-ubuntu-14-04-lts.htmlI had VirtualBox 4.3 installed and uninstalled it to have VirtualBox 5.1... big mistake, ever since I keep getting errors, or being unable to install any other version. Already used Synaptic, and ......Tue, 28 Jul 2026 23:38:40 -0400https://pop.com.sg/notify-send-doesn-039-t-work-from-crontab.htmlhttps://pop.com.sg/notify-send-doesn-039-t-work-from-crontab.htmlI made a script that should notify me when there's a new chapter of manga that I'm reading. I used the command notify-send to do this. The program works when I am trying to run it in terminal. The ...Tue, 28 Jul 2026 23:34:51 -0400https://pop.com.sg/fatal-authentication-failed-https-on-ubuntu.htmlhttps://pop.com.sg/fatal-authentication-failed-https-on-ubuntu.htmlI'm not able to push or pull any changes and I keep getting this error when ever I try to git push origin username, I have tried the other commands like git config --system --unset credential.helpe......Tue, 28 Jul 2026 23:34:47 -0400https://pop.com.sg/edges-of-display-are-cut-off-any-way-to-tweek-that.htmlhttps://pop.com.sg/edges-of-display-are-cut-off-any-way-to-tweek-that.htmlThe edges of the display are cut off. I looked at a few of the other responses, but my TV doesn't have those settings for the display (I have an element TV). I wouldn't really mind not seeing th......Tue, 28 Jul 2026 23:32:55 -0400https://pop.com.sg/how-to-upgrade-boost-lib-using-apt-get.htmlhttps://pop.com.sg/how-to-upgrade-boost-lib-using-apt-get.htmlI use ubuntu 11.04. My boost version: sam@sam:~/code/ros/pcl$ apt-cache showpkg libboost-all-dev Package: libboost-all-dev Versions: 1.42.0.1ubuntu1 (/var/lib/apt/lists/tw.archive.ubuntu....Tue, 28 Jul 2026 23:29:45 -0400https://pop.com.sg/what-does-tar-039-s-p-preserve-permissions-flag-actually-preserve.htmlhttps://pop.com.sg/what-does-tar-039-s-p-preserve-permissions-flag-actually-preserve.htmlWhat does the -p flag actually preserve when creating and extracting a tarball? Is it the rwx permissions it preserves? When I created a htdocs/ tarball owned by root, extracting it to my local ma......Tue, 28 Jul 2026 23:27:52 -0400https://pop.com.sg/using-system-directoryservices-on-ubuntu-to-authenticate-with-windows-.htmlhttps://pop.com.sg/using-system-directoryservices-on-ubuntu-to-authenticate-with-windows-.htmlI have developed a C# application using monodevelop, which basically does ldap authentication with windows active directory. It works fine in windows, but if I use the same code in Ubuntu instead of ...Tue, 28 Jul 2026 23:22:31 -0400https://pop.com.sg/wine-programs-can-039-t-open-files-from-another-hard-drive.htmlhttps://pop.com.sg/wine-programs-can-039-t-open-files-from-another-hard-drive.htmlI can't open any files (music, video, any type of files) on my second hard drive via Wine. If I copy that file to home folder, then I can. But I don't want to copy each file (I haven't got much spa......Tue, 28 Jul 2026 23:19:25 -0400https://pop.com.sg/ubuntu-20-04-network-performance-extremely-slow.htmlhttps://pop.com.sg/ubuntu-20-04-network-performance-extremely-slow.htmlI just upgraded from Ubuntu 18.04 to 20.04 on one of the Dell XPS 13 machines, and the network performance is abhorrent. Internet speed is very fast from a google speed test (>300Mb/s for both uplo......Tue, 28 Jul 2026 23:18:48 -0400https://pop.com.sg/unable-to-type-inr-sign-in-18-10-duplicate.htmlhttps://pop.com.sg/unable-to-type-inr-sign-in-18-10-duplicate.htmlI am not able to type symbol for Indian rupees using my 18.10. I have set Regional format as English ( India ) and in other areas where I can find English ( India ). But when I type ALT+4, I get 4 on ...Tue, 28 Jul 2026 23:12:46 -0400https://pop.com.sg/cannot-fork-error-messages.htmlhttps://pop.com.sg/cannot-fork-error-messages.htmlThis happens with many different programs from the terminal. Usually accompanied with some error message about not being able to allocate memory. When I try "free -m" this is the output: martin@m......Tue, 28 Jul 2026 23:06:25 -0400https://pop.com.sg/microsoft-lifecam-vx-2000-doesn-039-t-work-anymore-in-cheese.htmlhttps://pop.com.sg/microsoft-lifecam-vx-2000-doesn-039-t-work-anymore-in-cheese.htmlI got have two Lifecam VX-2000's and they don't work in cheese anymore. I don't know if it's a problem with a missing package, or a package I installed. Here is the output. (cheese:11122): Clutter-...Tue, 28 Jul 2026 22:54:18 -0400https://pop.com.sg/cannot-uninstall-avg-antivirus.htmlhttps://pop.com.sg/cannot-uninstall-avg-antivirus.htmlWhenever I try to uninstall AVG or any other app this pops up: ~$ sudo dpkg -r avg2013flx (Reading database ... 204955 files and directories currently installed.) Removing avg2013flx (2013.3118) ... ...Tue, 28 Jul 2026 22:47:56 -0400https://pop.com.sg/how-to-change-shift-keypad-key-behavior.htmlhttps://pop.com.sg/how-to-change-shift-keypad-key-behavior.htmlI am used to use the numeric keypad for navigation (e.g. : KP7 -> Start, KP1 -> End, KP4 -> Left, etc... ). I am also used to use it for selection (e.g. : Shift+KP7 -> Select from cursor ...Tue, 28 Jul 2026 22:41:31 -0400https://pop.com.sg/how-to-list-installed-packages-using-snap.htmlhttps://pop.com.sg/how-to-list-installed-packages-using-snap.htmlI'd like to get a list of packages installed manually by snap and be able to find out whether a foobar package was installed manually by system installer. For example: $ snap list Name ......Tue, 28 Jul 2026 22:30:58 -0400https://pop.com.sg/how-to-get-ich-ac97-audio-controller-to-work-under-ubuntu-server.htmlhttps://pop.com.sg/how-to-get-ich-ac97-audio-controller-to-work-under-ubuntu-server.htmlI have installed Ubuntu Server 11.04 as a Virtual Box VM, which emulates the ICH AC97 audio controller. mpg321 reports 'No default libao driver available' According to this page the driver for this ...Tue, 28 Jul 2026 22:29:29 -0400https://pop.com.sg/how-to-install-latest-version-of-cuda-on-ubuntu-18-04.htmlhttps://pop.com.sg/how-to-install-latest-version-of-cuda-on-ubuntu-18-04.htmlI tried to install CUDA on Ubuntu but got errors. I follow official guide for installation. And actually I succeed on my own mac. But on ubuntu 18.04 machine, when I tried to test those samples, it ...Tue, 28 Jul 2026 22:10:25 -0400https://pop.com.sg/how-to-install-wine-on-ubuntu-17-10.htmlhttps://pop.com.sg/how-to-install-wine-on-ubuntu-17-10.htmlim trying to install wine so i can play fortnight but when i do sudo apt-get install --install-recommends wine-staging i get an error that says wine-staging: depends: wine-staging-amd64 (=2.21.0~......Tue, 28 Jul 2026 22:08:12 -0400https://pop.com.sg/want-a-fully-functional-18-04-hardware-monitor.htmlhttps://pop.com.sg/want-a-fully-functional-18-04-hardware-monitor.htmlHaving trouble finding a hardware monitor. I tried GNOME's system-monitor, but it doesn't show most of the possible info; I only get the CPU temp. My system has the MSI Gaming Edge AC with a Sapphire ...Tue, 28 Jul 2026 22:04:52 -0400https://pop.com.sg/can-039-t-change-the-default-python-3-5-to-3-7-in-ubuntu-16-04.htmlhttps://pop.com.sg/can-039-t-change-the-default-python-3-5-to-3-7-in-ubuntu-16-04.htmlI am running ubuntu 16.04. Recently I have installed python3.7.3 by running these commands: sudo apt update sudo apt install software-properties-common sudo add-apt-repository ppa:deadsnakes/ppa......Tue, 28 Jul 2026 22:03:57 -0400https://pop.com.sg/duplicated-icons-with-unity-particular-case-matlab.htmlhttps://pop.com.sg/duplicated-icons-with-unity-particular-case-matlab.htmlWhen I run Matlab from its launcher, a second icon will show up. Funny thing is that if I put the mouse on the new icon, the text that appears on it is not the one I have in my .desktop file. So my......Tue, 28 Jul 2026 22:02:01 -0400https://pop.com.sg/unrar-folder-with-password-terminal.htmlhttps://pop.com.sg/unrar-folder-with-password-terminal.htmli'm using this command to unrar folders: for file in *.part01.rar; do unrar x ${file}; done; but i don't know where to add the password in this command. because right now, this command wants the ...Tue, 28 Jul 2026 22:00:46 -0400https://pop.com.sg/nvidia-x-server-settings-only-shows-1-screen-laptop-external-monitor-c.htmlhttps://pop.com.sg/nvidia-x-server-settings-only-shows-1-screen-laptop-external-monitor-c.htmlI have recently installed a new copy of Ubuntu 14.04 on my Dell M3800 which has Nvidia Quadro K1100M graphics card. Later I also connected my external monitor via HDMI (HDMI to DVI connector). Th......Tue, 28 Jul 2026 21:48:48 -0400https://pop.com.sg/acpi-errors-when-booting-can-039-t-boot.htmlhttps://pop.com.sg/acpi-errors-when-booting-can-039-t-boot.htmlI recently installed ubuntu gnome 16.04 LTS in My HP-15AC122TU laptop. I have been using this for a while. I wanted to genarate an xorg.conf file since having a screen-tearing whenever I play mov......Tue, 28 Jul 2026 21:37:44 -0400https://pop.com.sg/how-can-i-make-mouse-keyboard-drivers-to-work.htmlhttps://pop.com.sg/how-can-i-make-mouse-keyboard-drivers-to-work.htmlWhat can I do if I want to download a mouse/keyboard driver but it's not native with Linux, how can I adjust DPI, and the RGB lighting?...Tue, 28 Jul 2026 21:25:24 -0400https://pop.com.sg/xdotool-script-to-perform-mouse-moves-and-clicks.htmlhttps://pop.com.sg/xdotool-script-to-perform-mouse-moves-and-clicks.htmlI'm new to xdotool and I have a bash script to do some automated clicks for me, but the clicks don't seem to be occurring. I think it's because I'm not selecting the window, though I'm not very con......Tue, 28 Jul 2026 21:23:20 -0400https://pop.com.sg/which-keys-to-go-up-or-down-in-gnome-terminal.htmlhttps://pop.com.sg/which-keys-to-go-up-or-down-in-gnome-terminal.htmlWhen I open GNOME Terminal I do not like to use mouse so I had trouble when I want to go upper in the page or go down the page . So is there any key switch for that in order to navigate the page wi......Tue, 28 Jul 2026 21:15:13 -0400https://pop.com.sg/user-ghopper-ask-ubuntu.htmlhttps://pop.com.sg/user-ghopper-ask-ubuntu.htmlQ&A for Ubuntu users and developers...Tue, 28 Jul 2026 21:11:53 -0400