### Where is /usr/local/cuda?

[@finn](https://deeptalk.lambda.ai/u/finn) I’ve personally had nothing but trouble with Lambda Stack, especially if I needed a particular version of something for any reason. Ever since I uninstalled it and installed everything as intended by the respective maintainers, I’ve had no more weird issues.

### Lambda Tensorbook Specifications

**Question:** Above it says “2 Mini Display port 1.3”, yet I can only see one on my Tensorbook. Am I looking in the wrong place or what does it mean that there are 2?

### How to change keyboard backlight color

On Ubuntu, try changing the `GRUB_CMDLINE_LINUX_DEFAULT` line in `/etc/default/grub` to:
```
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_os_name=Linux acpi_osi=! acpi_osi=Linux acpi_backlight=vendor modprobe.blacklist=nouveau"
```
This should enable the keyboard backlight key combinations (Fn /, Fn *, Fn -,…)

### Tensorbook - Ubuntu 18 No sound

Same issue here. Can we get some help on this, please?