I have been trying a couple kernel, and they all have different issues so far. For example:
5.4.0-77 – I can’t build the amdgpu driver at all
5.4.0-54 – While the driver can be built, then I cannot set the core voltage or clock
5.11.0-22 HWE, While I can build the driver and set core clock and voltage, I cannot apply the change in kernel to enable C mode for Radeon VII.
Following the guide:
Step 4: Go to the line where you see GRUB_CMDLINE_LINUX_DEFAULT and insert these parameters inside the quotes and then save/quit the file:
* amdgpu.vm_block_size=10 amdgpu.vm_size=1024
Step 5: Update grub:
Step 6: Reboot your mining rig for the changes to take effect and go back into shellinabox.
Step 7: Double check if you did the previous steps properly by using the following command. If you did everything properly, you should see ‘block size is 10-bit’
* dmesg | grep “drm.*block size”
But the last line did not return anything. However, I remember a certain previous kernel did return 10 bit.
In short, what kernel works best for you? And maybe what version of ubuntu?