How to fix AVD emulator grainy, poor resolution display in Android Studio

The AVD emulator on Android Studio display shows all characters at 1:1 resolution grainy. It is difficult to read the text of the app under testing. To overcome this problem: Create the AVD emulator device and set to no borders or skin. Instead of a docked view, select the Window view, so the device opens … Continue reading How to fix AVD emulator grainy, poor resolution display in Android Studio

Experience with Motorola G5S Plus (Sanders) (XT-1084) ROMs and Generic System Image custom ROMs Project Treble

Whatever you do with your device, it’s all at your own risk. The DeviceThe legacy Motorola G5S Plus phone (sanders) is of 2017 and has a lot of juice in it to support Android OS versions up to Android 12. However, sucess is not guaranteed. Since this device is over 5 years old now, Motorola … Continue reading Experience with Motorola G5S Plus (Sanders) (XT-1084) ROMs and Generic System Image custom ROMs Project Treble

How to improve speed of Android Studio on a legacy computer

Android Studio is one of the best IDEs for Android apps development, but with legacy computers, it is very slow. To run it on a Dell Vostro 3546, here's what I had to do. Upgrade hardware Minimum RAM required is 8 gb. The laptop came with 4 gb DDR3 1600 Mhz RAM which was slow, … Continue reading How to improve speed of Android Studio on a legacy computer

How to find out SSD details on a Linux computer

Open a terminal window and enter the following to find out technical information of an SSD installed in the computer using Linux. $ sudo hdparm -i /dev/sda <enter> /dev/sda:Model=CT500MX500SSD1, FwRev=M3CR043 Visit https://www.crucial.in/support/ssd-support/mx500-support to check if there is a firmware upgrade for the SSD.

How to install Linux Mint on Crucial MX500 SATA SSD drive on Dell Vostro 3546 laptop after BIOS upgrade

The humble Dell Vostro 3546 is an old laptop from 2014, which came with an Intel 4th Generation 4210U processor, 1 TB SATA 5400 rpm hard disk and 4 GB DDR3 (low voltage) 1.35V RAM. It worked fine till now even when it ran Linux Mint 20.3 with Blender 3D. However, everytime an Android app … Continue reading How to install Linux Mint on Crucial MX500 SATA SSD drive on Dell Vostro 3546 laptop after BIOS upgrade

How to improve speed or performance of Linux Mint XFCE on old computer

Decrease swappiness whereby the use of swap is curtailed$ cat /proc/sys/vm/swappiness <enter>returns the value of swappiness which is 60 initially. Make this 20 as follows:$ sudo xed /etc/sysctl.conf <enter>Add a line to the end of the filevm.swappiness=20Save the file. Disable Java in LibreofficeOpen Libreoffice Writer.Go to Tools -> Options -> Advanced -> Java OptionsUncheck Java … Continue reading How to improve speed or performance of Linux Mint XFCE on old computer

How to create and use LUKS encrypted partition in Linux

It is easy to create a LUKS container and a partition within it, using the GUI on Linux. The application that enables this easily is the gnome-disk-utility. However, if you want to use the command line to set up a LUKS encrypted device, read on. Exercise appropriate caution before doing any of the below with … Continue reading How to create and use LUKS encrypted partition in Linux

How to securely wipe a hard drive or USB drive in Linux using dd or scrub

Normally we'd use dd to clean wipe a hard drive as follows after opening a terminal window for a hard disk or USB drive accessible as /dev/sdb :$ sudo dd if=/dev/urandom of=/dev/sdb status=progress <enter> Another command to do a secure wipe of /dev/sdb is scrub that can be used as follows:$ sudo scrub -p dod … Continue reading How to securely wipe a hard drive or USB drive in Linux using dd or scrub

How to enable the UEFI in VirtualBox for a Windows 10 virtual machine running on Linux

This is for those who missed checking the UEFI checkbox in the settings prior to installing Windows 10 in VirtualBox. Do the below at your own risk, take appropriate backup, First, check and confirm if BIOS Mode is Legacy, which means MBR is the partition and not GPT. To do this, press Windows+R and run:msinfo32.msc … Continue reading How to enable the UEFI in VirtualBox for a Windows 10 virtual machine running on Linux

Dell Support Experience to order and replace laptop battery

This is based on the experience of one of my family with Dell Support whose Dell Inspiron uses a 3 cell 4.1V 3500 mAH Li-ion battery - part number FW8KR11. This was confirmed in Linux using dmidecode. Open a terminal window and enter the command below.$ sudo dmidecode <enter>Portable BatteryLocation: Sys. Battery BayManufacturer: BYDManufacture Date: … Continue reading Dell Support Experience to order and replace laptop battery