## Lambda Quad: No ethernet after force reboot

Just got off the phone with Gerome (Jerome?) @ Lambda Labs support.  
He had me pop the cmos battery from the motherboard, powercycle for 30 secs and voila, the network cards are back to life!  
Fantastic!  
Thanks a bunch Gerome!  
Here is the output showing the interfaces once again! enp2s0f0 / enp2s0…

## Tensorbook bionic - No sound

I once again have no sound. So, I tried dmesg and saw  
snd_hda_codec_realtek hdaudioC0D0: Unable to sync register 0x2b8000.  
Here is the full output. Any pointers?  
```bash  
(base) ravi@ravi-tb:~$ dmesg | grep -C1 -E 'ALSA|HDA|HDMI|snd[_-]|sound|hda.codec|hda.intel'  
```

## Tensorbook bionic - No sound

Ok, after the nvidia-driver install and reboot, sound wasn’t working.  
But I repeated another which I had done just before the driver install:  
```bash  
apt update && apt upgrade  
```
And now sound is back!  
Unfortunately, I dismissed the terminal window, so didn’t pay attention to what package got upgraded … s…

## Tensorbook bionic - No sound

Ok, decided to start from scratch. Reinstalled the Ubuntu 18.04. Sound works before I install nvidia-drivers.  
But immediately after nvidia-drivers there is no sound.  
To reproduce:  
1. Do a stock install of ubuntu 18.04  
2. Validate sound is working  
3. Then install nvidia-driver  
```bash  
ubuntu-drivers devices  
```

## Tensorbook bionic - No sound

I have actually went through that earlier as well, but no luck.  
The only thing I changed in the instructions is to adapt to 18.04.  
Did you get it to work on 18.04?