I can confirm this bug still persists on Ubuntu 20.04 64-bit, using an ASRock 990fx Extreme4 motherboard.
The solution pointed out here https://bugs.launchpad.net/ubuntu/+source/linux/+bug/916677/comments/39 seems to still fix the problem.
I can confirm this bug still persists on Ubuntu 20.04 64-bit, using an ASRock 990fx Extreme4 motherboard.
The solution pointed out here https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/916677/ comments/ 39 seems to still fix the problem.