Debian Buster: on dual boot, mariadb get stucked during shutdown

Due to a recent time change the clock was messed up.

# timedatectl set-local-rtc 0

Reference:

https://superuser.com/questions/1420699/how-to-fix-mariadb-when-it-gets-stuck-during-shutdown-waiting-for-page-cleaner

Debian Buster: Installing Google Chrome from Google Repository

Add and edit Google Chrome Repository

# cd /etc/apt/sources.list.d/
# touch google.list
# vi google.list

    # Google Chrome
    deb http://dl.google.com/linux/chrome/deb/ stable main

Add Google Linux Package Signing Keys

# wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add

Update repository and install google chrome

# apt-get install google-chrome-stable

To install Google Earth, add at the end of google.list file or create a new file in folder /etc/apt/source.list.d/

    # Google Earth
    deb http://dl.google.com/linux/earth/deb/ stable main


Reference:

• https://wiki.debian.org/DebianRepository/Unofficial
• https://www.google.com/linuxrepositories/

Debian Buster: Preparing Debian for Video Call Meeting

Check internal or usb camera is working properly.

# dmesg | grep Video
[    0.504995] ACPI: Added _OSI(Linux-Dell-Video)
[    0.576610] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    2.702573] ACPI: Video Device [VGA] (multi-head: yes  rom: no  post: no)
[    2.703765] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:2e/LNXVIDEO:00/input/input6
[    2.703902] ACPI: Video Device [VGA1] (multi-head: yes  rom: no  post: no)
[    2.705790] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/LNXVIDEO:01/input/input7
[   27.192685] USB Video Class driver (1.1.1)

# ls /dev/ | grep video
video0
video1

Try your camera and microhpne using guvcview. Make a capture photo or make a simple video.
# apt-get install  guvcview  

Use your user account to run guvcview. The application will be at Multimedia -> gucvview.

Your photo and view will be save at home directory. Video by default will be save in mkv format file.

Now your ready to install other video meeting application for work from home or shool from home.

If you have trouble using internal on old Lenovo Laptop (such as Lenovo G40-45, Lenovo B475, etc) that running Windows 10 build 1903 or later, you can try linux live CD to use your internal camera
 
Tested on:
Debian 10.3 Linux 4.19.0-8-amd64
Laptop Asus K45DR

#TOGETHERFIGHTCOVID19
#WORKFROMHOME
#STUDYFROMHOME