Edit : NOPE! Turns out this issue is deeper and more mysterious, Steam is NOT at fault!
Had that "fan spin up and machine gets hot" issue on linux again. This time I've tracked it down! First tried HTOP, nothing on CPU. Then NVTOP, BINGO, GPU is pushed to 100%. But what?
Turns out it was steam! When my machine goes into lock, nothing until screen goes into sleep and then BAM, 100% GPU. I send a sigkill to steamwebhelper and GPU drops and stays normal until I unlock and relock screen and it goes dark agian.
Going to Steam File->Settings->Interface and turning off "Enable GPU accelerated rendering in web views" seemed to fix it. The restart of steam didn't, but exiting steam fully, then restarting it did. Now I don't get that problem. I'll keep monitoring it,but that might be the fix!
#linux #fedora #kde #steam #screenlock #bug