If your Laptop is running Linux OS and your screen is blinking when boots then we can fix this using “nomodeset” in /etc/default/grub.
What is nomodeset ?
The newest kernels have moved the video mode setting into the kernel. So all the programming of the hardware specific clock rates and registers on the video card happen in the kernel rather than in the X driver when the X server starts.. This makes it possible to have high resolution nice looking splash (boot) screens and flicker free transitions from boot splash to login screen. Unfortunately, on some cards this doesnt work properly and you end up with a black screen. Adding the nomodeset parameter instructs the kernel to not load video drivers and use BIOS modes instead until X is loaded.
You should add this option to /etc/default/grub, firstly:
sudo nano /etc/default/grub
and then add nomodeset to GRUB_CMDLINE_LINUX_DEFAULT like below:
GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR='lsb_release -i -s 2> /dev/null || echo Debian' GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset" GRUB_CMDLINE_LINUX=""
and press CTRL+X and then press Enter Key.