Boot issues i get this screen while I boot

Question

1. I get this screen while booting
2. I need to power of my pc to get rid of this screen sometimes even it won't work
3. I tried reinstalling the os it is not working 4 Ii tried upgrading it is not working

Answer 1

The solution is to add a acpi_backlight=vendor option to the Grub file. Here’s how:

1. Open Terminal (if it’s not already open)
2. Open the /etc/default/grub file with sudo in your preferred text editor
3. Add acpi_backlight=vendor to the GRUB_CMDLINE_LINUX_DEFAULT setting. For example:

   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
   

4. Save the file and exit
5. Update Grub

   sudo grub-update
   

6. Reboot

You may need to do this via a Live USB if you cannot boot the system at all.