I had a similar issue on nobara. I have 3060ti and I use tv with HDMI. No signal when trying to resume after pc had suspended or tv had turned off. Never found a solution, but there was a little workaround though: first ctrl+alt+F(1-4), whichever gets you the terminal thingy, then alt+F(1-4) should get you to login screen.
After not finding any usable advice from forums, I asked AI for help and it suggested a script that automates changing tty. I didn't test it though, seemed easier to just go back to mint.
Because the ticket was so expensive that there was nothing left in the budget