Actually i have an Inspiron 5593 with 18.04, but at some time i upgraded the kernel to 5.4.0 instead of original 5.0. I suspect that 20.04 has also 5.4.0 kernel, so i think the issue should be somewhere between grub and kernel. I will try those workarounds today
Actually i have an Inspiron 5593 with 18.04, but at some time i upgraded the kernel to 5.4.0 instead of original 5.0. I suspect that 20.04 has also 5.4.0 kernel, so i think the issue should be somewhere between grub and kernel. I will try those workarounds today