Thank you for sharing such an experience. I adapted your instruction for my HP Laptop 15s-eq1 (AMD Ryzen 3 4300U, Linux Mint 20.2, kernel 5.10). And... Finally, there is the support of S3 state in dmesg (the output in step 8 is the same as yours). The laptop suspends to RAM!.. But can't wake after.
Thank you for sharing such an experience. I adapted your instruction for my HP Laptop 15s-eq1 (AMD Ryzen 3 4300U, Linux Mint 20.2, kernel 5.10). And... Finally, there is the support of S3 state in dmesg (the output in step 8 is the same as yours). The laptop suspends to RAM!.. But can't wake after.
With kernel 5.14-rc5 my laptop wakes up like a charm)
Without your DSDT magic, suspending/wake up does not works even on 5.14-rc5.