Game freezing sometimes when I alt tab

EDIT:

Enabling Variable refresh rate in Settings > Display > Graphics settings fixed this issue for me, alternative fix is to disable gsync, so culprit is probably gsync.

  • It happens only on dx12 after prepatch, dx 11 is fine
  • I reinstalled drivers after completely removing everything with DDU
  • Windows is freshly installed, Win 10 latest version 20H2
  • I tried closing all other programs like razer synapse, discord, iCUE, disabled geforce experience overlay
  • Tested with latencymon, nothing happens when game freezes but i checked task manager and cpu / gpu usage for wow, it drops to zero when freeze happens.
  • If I alt tab quickly again game will restore, if I wait few seconds my display driver will crash and restart itself . From event viewer: “Display driver nvlddmkm stopped responding and has successfully recovered”
  • I really dont know what to try anymore and I need help, but like I said it started after prepatch, also I completely reinstalled wow because I wanted everything to be “clean” before SL, WTF folder is new, I didnt copy or backup anything from old wow installation, everything is fresh.

Specs:

Nvidia GTX 1080
i7-7700K
16gb ram
Win 10 pro latest update including latest nvidia drivers

Yeah, same issue but without the display driver crashing, but once every 10 alt tabs, WoW will freeze for 5-10 seconds and keep going after.

All the troubleshooting is self explanatory, i did everything as i work around PC/IT and i know my stuff.

Have never had this and i am on DX12, it appeared after 9.0.1, i will test with DX11 for a few days i guess and yes, G-sync compatibility is on ;D Maybe its that.

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