my vga card rx6750xt have a similar problem like u too. I have use newest drivers, no overclocking at all on my system yet the crash is still happening, even i had to press reset button cause the crash freeze my system completely.
i've asked several fortum and they suggested me to turn off freesync, i tried it but alas it still happen, so i thought it is because of radeon drivers, cause when i use my old vga card from competitor this things didnt happen
Yeah.. I've posted this on reddit but I'll post this here as well:
Troubleshooting I've done so far:
#1 Undervolted to 1125mv
#2 Set a custom fan curve
#3 Set the GPU core clock to 2500 max
#4 Tried like 5 different core clock variations
#5 Undervolted the CPU in the bios
#6 Uninstalled and reinstalled windows
#7 Ran DDU and reinstalled the drivers
#8 Tried two different versions of the 7900 XTX mentioned in the post
#9 Enabled windows insider preview to try out the may update driver
#10 Disabled freesync since FFXIV does not like freesync from what I gathered
#11 Disabled the overlay for the Adrenaline software.
What PSU are you using? Some Radeon cards are picky about what PSU people have.
I think the only thing you can do is send a bug report through the bug report tool or through this link: https://www.amd.com/en/support/contact-email-form to let them know that it's not just a few people having black screen issues or other issues after recent driver updates.
BTW, I crash on all games with my PowerColor Radeon RX 7900 XTX Red Devil.
Sorry to hear you had issues with the RX 7900 XTX. I hope the swap resolves your problem.