Month: July 2022

UPDATE – System OS to 6.0 – Home Assistant OS – Home Assistant Community

Jovan Stosic July 20, 2022

Finally after half year I fixed it. The filesystem had error. I did:

  • downloaded ubuntu iso on host machine
  • attached iso as CD-ROM
  • turned off UEFI
  • turned off boot from hard drive
  • set up CD-ROM as first device to boot
  • started virtual machine and selected boot from CD-ROM
  • after ubuntu started I launched gparted, selected disk with HA and run check/fix on data partition (twice)
  • powered off virtual device
  • unchecked boot from CD-ROM, checked boot from HD and moved it to first position
  • moved HD in boot order to top
  • started the virtual machine. no Ctrl-D was required

 

Source: UPDATE – System OS to 6.0 – Home Assistant OS – Home Assistant Community

UPDATE – System OS to 6.0 – Home Assistant OS – Home Assistant Community was last modified: July 20th, 2022 by Jovan Stosic

How do I play a video in Android with zero volume while simultaneously playing music using another MP3 player app at full volume?

Jovan Stosic July 8, 2022

  1. Download MX player(for video) and playmusic/Spotify or any app for music/MP3 playback.
  2. Open MX player
  3. Then go to local Player settings> Player> Playback section> and uncheck play alone option.
  4. Go to equaiizer settings (of max player) and make everything( all frequencies) to 0.
  5. Now you can play any video on MX player with zero volume while simultaneously playing music using another MP3 player app at full volume.

Note! If you have a samsung device you can do it by samsung’s built in soundassistant settings.

https://www.quora.com/How-do-I-play-a-video-in-Android-with-zero-volume-while-simultaneously-playing-music-using-another-MP3-player-app-at-full-volume

How do I play a video in Android with zero volume while simultaneously playing music using another MP3 player app at full volume? was last modified: July 8th, 2022 by Jovan Stosic

Ubuntu 20.04 shows a black screen when connecting through Teamviewer, but I still have ssh access. How can I get back the desktop?

Jovan Stosic July 8, 2022

If you have a headless machine (ie: no monitor plugged into it) you’ll need to either install a “HDMI headless dummy connector” or you can install a Video Dummy Package:

sudo apt-get install xserver-xorg-video-dummy

Then add a configuration file for it:

sudo vi /usr/share/X11/xorg.conf.d/xorg.conf

and paste this (adjusting your desired resolution)

Section "Device"
    Identifier  "Configured Video Device"
    Driver      "dummy"
EndSection

Section "Monitor"
    Identifier  "Configured Monitor"
    HorizSync 31.5-48.5
    VertRefresh 50-70
EndSection

Section "Screen"
    Identifier  "Default Screen"
    Monitor     "Configured Monitor"
    Device      "Configured Video Device"
    DefaultDepth 24
    SubSection "Display"
    Depth 24
    Modes "1920x1080"
    EndSubSection
EndSection

Then reboot the machine and voilá

 

Source: Ubuntu 20.04 shows a black screen when connecting through Teamviewer, but I still have ssh access. How can I get back the desktop? – Ask Ubuntu

Ubuntu 20.04 shows a black screen when connecting through Teamviewer, but I still have ssh access. How can I get back the desktop? was last modified: July 8th, 2022 by Jovan Stosic

LED Drivers vs. Light Ballasts | IKIO

Jovan Stosic July 7, 2022

Both LEDs and fluorescent lights require a buffer between the lamp and the power supply. While fluorescents use ballasts, LEDs use drivers. Even though the function of ballasts and drivers are quite similar, most documentation prefers ‘drivers’ to be associated with LED lamps and ‘ballasts’ to other traditional light sources. Ballasts and drivers are essential components to trigger and control the light fixtures.

Source: LED Drivers vs. Light Ballasts | IKIO

LED Drivers vs. Light Ballasts | IKIO was last modified: July 7th, 2022 by Jovan Stosic