Can you try a vanilla 5.4.30 kernel from here, and see if it has the same problem? That will let us know if any of the fixes we've applied on top of 5.4 is responsible.
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.4.30/
Note that you will need to disable secure boot to boot into this kernel. Thanks!
Can you try a vanilla 5.4.30 kernel from here, and see if it has the same problem? That will let us know if any of the fixes we've applied on top of 5.4 is responsible.
https:/ /kernel. ubuntu. com/~kernel- ppa/mainline/ v5.4.30/
Note that you will need to disable secure boot to boot into this kernel. Thanks!