System scaling in Linux on 1920×1080 display (HiDPI)

Note system scaling works out of box with Cinnamon desktop. Open a terminal window and install it with: $ sudo apt-get install cinnamon-desktop-environment <enter> To do system scaling in the Gnome Desktop Environment, install the gnome-tweak tool. To do so, open a terminal window and enter the command as below: $ sudo apt-get install gnome-tweak-tool … Continue reading System scaling in Linux on 1920×1080 display (HiDPI)

How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone

Never look a gift horse in the mouth.. If you are one of those who is a technology connoisseur and love to compare specifications of smart phones before making a purchase decision, you need to be aware that the Xiaomi Redmi Note 5 Pro with 6 GB Internal RAM, best display and camera is a … Continue reading How to debloat, remove crapware from Xiaomi Redmi Note 5 Pro smartphone

How to de-brick or unbrick or recover TP-Link WDR-4300 wireless router

Due to a wrong update of firmware, I bricked the TP-Link WDR 4300 wireless router I had. It was unused for a considerable period of time assuming that it had died due to hardware fault, with no hope of being resuscitated. Finally, got some time to investigate it further and attempted to recover or salvage … Continue reading How to de-brick or unbrick or recover TP-Link WDR-4300 wireless router

How to restart wifi after Suspend/Resume Ubuntu Linux

Ubuntu Linux installed on a Lenovo laptop randomly disables wireless networks altogether. Subsequently, it does not show any wireless networks too in Network Manager. To resolve this issue, did the following: $ sudo lshw -class network <enter> Below is the result. Notice the logical name wlp2s0b1 and the driver brcmsmac *-network description: Wireless interface product: … Continue reading How to restart wifi after Suspend/Resume Ubuntu Linux

How to reset TP Link WDR4300 router after bad install of OpenWRT LEDE

If you cannot access the LUCI OpenWRT page of the TP Link WDR4300 router, the below may help. Set PC ip: 192.168.1.2 and subnetmask 255.255.255.0 and gateway 192.168.1.1 Power off the router Disconnect the WAN cable Only connect your PC Ethernet cable to ETH0 Power On the router Wait for the router to start the … Continue reading How to reset TP Link WDR4300 router after bad install of OpenWRT LEDE

Error bd_crypto_luks_open_blob called but not implemented when opening Luks Encrypted volume in Lubuntu

Below error appears in Lubuntu 18.04 LTS bd_crypto_luks_open_blob called, but not implemented when opening Luks Encrypted volume using PCManFM, the Lubuntu File Manager. To overcome this error, open a terminal window and enter the commands below: $ sudo apt install libblockdev-crypto2 <enter> $ systemctl restart udisks2.service <enter>

How to add the Epson Printer Drivers for Ink Tank L 365 in Linux

To add the Epson Printer Drivers for Ink Tank L 365 in Linux 1. Download drivers from the site http://download.ebz.epson.net/dsc/search/01/search/searchModule 2. Enter printer model as L365 and select Operating System as Linux. Next open a terminal window and enter the commands as below: $ sudo apt install ~/Downloads/epson-inkjet-printer-201401w_1.0.0-1lsb3.2_amd64.deb <enter> $ sudo apt install ~/Downloads/epson-printer-utility_1.0.2-1lsb3.2_amd64.deb <enter>

How to reduce overheating on Ubuntu (May also work on Xubuntu)

I installed Lubuntu 18.04 LTS after it was released. Unfortunately, the CPU temperatures never were below 70 degrees Celsius. I could toast bread on the laptop. To reduce overheating: 1. Go to BIOS and change Graphics from Optimus to UMA. 2. In Lubuntu, make sure NVIDIA is disabled. The problem with Ubuntu 18.04 LTS is … Continue reading How to reduce overheating on Ubuntu (May also work on Xubuntu)

How to install Oracle Java 12 on Ubuntu

See https://www.linuxuprising.com/2019/03/how-to-install-oracle-java-12-jdk-12-in.html Simply put, open a terminal window and enter following commands: $ sudo add-apt-repository ppa:linuxuprising/java <enter> $ sudo apt update <enter> $ sudo apt install oracle-java12-installer <enter> After the installation is complete, you can verify that the Java plugin has been installed by starting your Firefox web browser and typing about:plugins in the URL … Continue reading How to install Oracle Java 12 on Ubuntu