This first part was my original post
I am new with the Jetbot pack for the Nano and was trying to fix the wi-fi connection. It only occasionally finds a wlan0 source on boot, so I have to reboot it 5-6 times to be able to use it with Jupyter.
To that end, after turning off power saving for the wifi and blacklisting rtl8192cu, I tried using the driver solutions I saw in the forums.
From https://github.com/pvaret/rtl8192cu-fixes I typed
echo options rtl8xxxu ht40_2g=1 dma_aggregation=1 | sudo tee /etc/modprobe.d/rtl8xxxu.conf
into my terminal and then rebooted the system. I was going to do the rest of it after that, but ever since my screen has gone black after the first Nvidia logo and a few lines of text.
It can still boot, it still connects to the wi-fi occasionally, and when it does I can still access the Jupyter lab module on my computer. But I cannot see my screen on my jetbot, which had previously worked perfectly, and I can’t seem to get to the terminal blind, which I was trying to do afterwards.
I have the Ubuntu 18.04 default gui as my current interface.
This is the text that appears after the Nvidia logo and before the screen goes black.
I have now found that I can start it up fine and reach the terminal if I disable the GUI again. It did work at one point but no longer does. If anyone has ideas on how I can diagnose my GUI issues and fix them I would deeply appreciate it!