https://bugs.freedesktop.org/show_bug.cgi?id=109955

--- Comment #103 from Mauro Gaspari ilvipero@gmx.com --- (In reply to Rodney A Morris from comment #101)

(In reply to Rodney A Morris from comment #99)

...

Created attachment 145366 [details] apitrace of Hearts of Iron IV hard lock

Apitrace from hard lock playing Hearts of Iron IV without Steam. The replay from this trace will hard lock the computer, though inconsistently. I've replayed the trace three times. The replay hard locked computer one time.

neofetch from hardlock:

      /:-------------:\          
   :-------------------::        -------------------------------- 
 :-----------/shhOHbmp---:\      OS: Fedora release 30 (Thirty) x86_64 

/-----------omMMMNNNMMD ---: Kernel: 5.2.13-200.fc30.x86_64 :-----------sMMMMNMNMP. ---: Uptime: 25 mins :-----------:MMMdP------- ---\ Packages: 2202 (rpm), 27 (flatpak) ,------------:MMMd-------- ---: Shell: bash 5.0.7 :------------:MMMd------- .---: Resolution: 2560x1440 :---- oNMMMMMMMMMNho .----: DE: GNOME 3.32.2 :-- .+shhhMMMmhhy++ .------/ WM: GNOME Shell :- -------:MMMd--------------: WM Theme: Adwaita :- --------/MMMd-------------; Theme: Adapta-Nokto-Eta [GTK2/3] :- ------/hMMMy------------: Icons: Adwaita [GTK2/3] :-- :dMNdhhdNMMNo------------; Terminal: tilix :---:sdNMMMMNds:------------: CPU: Intel i7-6850K (12) @ 4.000GHz :------:://:-------------:: GPU: AMD ATI Radeon RX Vega 56/64 :---------------------:// Memory: 2478MiB / 32084MiB

OpenGL version string: 4.5 (Compatibility Profile) Mesa 19.1.6

Note: hard lock replayed occurred when the Discord flatpak is also running.

I also noticed some errors that pointed to discord in my logs. In my case discord was installed via .deb package. Could you please try and disable hardware acceleration in discord settings - appearance menu? Please let me know if it helps or changes anything. Thanks!