After installation nothing posts on screen when turned on

[Aravisian]

I am not sure of others we can try... may need to try some Internet searches. Currently, I need to go take care of other things and will be offline for a while.

[deadin2]

Sure man thanks for the help

[deadin2]

Hope this will help btw I can connect to the internet now using my phone and a usb connection

[seanhinkley]

Question: Does it work if you boot into the LiveCD?

Also: If you have a Mobile phone that allows USB tethering, plug the phone into the computer via usb, enable tethering, reboot. and then try update / upgrade suggested by @Storm

[Aravisian]

@Aravisian

Ok, please replace that parameter with amdgpu.dc=0

It would look like: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amdgpu.dc=0"

Let's try:
radeon.modeset=0
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.modeset=0"

Don't forget to run
sudo update-grub

[deadin2]

No nothing screens dead and even other os does the same thing (pixelated screen from live boot) so if my gpus dead

[deadin2]

Doesnt work

[seanhinkley]

Try taking the card out, and putting it back in in case there's any oxidization in the contacts. And make sure all the wires are tight,

if that fails, are you comfortable with taking hardware apart? a radeon 5k is an older card and there is a good probability the thermal paste is shot, if you are up to it, take the card out, take it apart, clean the die with rubbing alcohol reapply a dap of new paste and reassemble and try again.