I feel your pain....
I followed all instructions for installation of the new driver 19.7.2 and I cannot find many improvements over 19.7.1 except a small margin of better stability when i run Unigine Benchmark and Wattman seems to not be as buggy but had to go to sleep after messing with the system for hours last night.
Temps are the same in testing and benchmarking is the same for me.
I have also tried many of the methods you listed above. In fact, i had to roll back to more stable bios on my motherboard because the latest version caused more stability issues.
I am still experiencing the same shutdown issues as before.
After work today i will give it more time and energy but the drivers seem to be a very small step forward.
This new driver did literally nothing. Constant crashes, they didn't do anything about the multi display problem they have. So frustratiing. Hope they don't take another 2 weeks for 19.7.3 >.>
3600x / 5700xt - I had instant issues installing 19.7.2 from the Adrenaline program (using simple and then tried clean which is SUPPOSED to DDU but apparently doesn't?), however once I DDU'd myself and installed the 420mb file from Amd.com I am no longer crashing. Have you tried to install the driver from amd.com itself?
I have similiar problem in BO4 with 5700XT. Driver will slowsly start crashing after playing for a while. It will make windows static, freeze the taskbar finally causing the game to freeze and give me black screen. Once this happenes I can only restart my PC with power button. This issues only exist in this game. I also tried everything you listed and even more. I'm fighting 4th day to make this game work but nothing helps. I don't know if I should wait for better drivers or just refund this card and grab RTX 2070...
I crashed last night after a longer-than-usual gaming session (4 hours or so). I started getting intermittent black screen flickers, and fps slowed to a crawl here and there. It seemed any time the fan would ramp up, the screen would flicker more (mind you freesync is off, so these are dropped frames, not freesync flickers). I think its clear there is a problem with the power management/fan curve in the stock firmware. I'm not sure whether it was improved going from 19.7.1 to 19.7.2, but the card simply gets too hot for its own good and crashes after a while. I've ordered an EKWB cooler in the hopes that my theory is correct:
If running cooler helps, then at least we'll know cards with upgraded coolers will be "safe". I'll add this to my coolant loop ASAP and report back.
On that note, has anyone installed a cooler like the Accelero Xtreme and seen any improvement?
I ordered one of those special edition blocks as well, but already planned to water cool mine so hopefully this will also help. I'm convinced the crashes are due to over heating when the fan doesn't ramp up when it should.
Had the same issue - this worked for me:
1. Uninstall with DDU
3. Open Device-Manger
4. Update Display Driver manually from 19.7.2 extracted installation folder (i.e. c:\amd\....) - Don't start setup.exe or install Adrenaline Software
Switched from Nvidia - really not the best first impression