After installation nothing posts on screen when turned on

I installed Zorin os on my laptop and after successfully booting first time the screen sort of glitched and wouldn't respond so I force shutdowned it and rebooted and ever since nothing displays on the laptop screen. I did connect it to a external monitor but after booting it shows a pixelated output like this

Any help would be appreciated also I have a amd graphics card [amd mobility radeon hd 5000 series ]

That's one of the notorious video card in Linux. Can you get in TTY/CLI? (where you type commands?

Yes I can get to cli from a second monitor.

Try first something simple by getting all the updates and see if it solved the problem

sudo apt update && sudo apt upgrade


We also need out put of this:

sudo apt install inxi && inxi -G

I can't use network through cli even after using that use network option

Oh ... okay.

lspci -nn | grep -E 'VGA|Display'

This is the output thanks for reaching out very quickly :upside_down_face:

okay, lets see which driver it uses;

sudo lshw -c video

BTW no display on laptop screen this is from an external monitor

Letts see the xorg file.

cat /etc/X11/xorg.conf

we may switch driver for your card to vesa or something.

Well this is weird

Also I booted from recovery mode or else I get that pixelated screen


sudo nano /etc/modprobe.d/blacklist-radeon.conf

add: blacklist radeon

save - ctrl+o
exit - ctrl+x

lspci -k|egrep 'VGA|in use'

Sorry for the delay
Still nothing displays on the laptop screen

cat /etc/modprobe.d/blacklist-radeon.conf

cat /etc/modprobe.d/blacklist-framebuffer.conf

By the way. Are you sure that the laptop screen isn't broken?

I'm offline, but I'll be back.

No after I first booted after installation then nothing comes on screen not even bios flash