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.
Sure man thanks for the help
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
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Let's try:
radeon.modeset=0
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash radeon.modeset=0"
Don't forget to run
sudo update-grub
No nothing screens dead and even other os does the same thing (pixelated screen from live boot) so if my gpus dead
Doesnt work 
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.
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Maybe it's time to look at purchasing a newer video card. If the motherboard has integrated graphics, possibly leaving the video card out for now.
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