L4T Ubuntu 3.4.0
​

Intro
L4T Ubuntu is a version of Linux based on nvidia's linux for tegra project. It uses a different kernel compared to previous releases which allows it to use features not yet in mainline. Such as audio, docking support and vulkan.

Beware, using high clocks in handheld mode will degrade your batteries capacity a lot faster than at stock clocks
If you can't install an application check this thread, and ask all questions there
https://gbatemp.net/threads/l4t-ubuntu-applcation-install-guides.537579/
https://discord.gg/N9PPYXjWMY

We have a wiki !
To facilitate our work we will only update our wiki from now on in order to avoid multiple outdated references, please refer to the following link instead of this page
https://wiki.switchroot.org/en/Linux/Ubuntu-Install-Guide

3.4.0 update file listed below With the 3.0+ updates. If doing fresh install, install 3.4.0 image.

Big Thanks to CTCaer for 3.4.0, for fixing the final issues in Ubuntu/Linux kernel and all the testers that helped him.

Features

• Full USB PD/OTG/OTG Docks
• Bluetooth (both controllers and audio)
• Full Joycon Support(Excluding NFC, and IRcamera)
• Nvidia GPU drivers - Vulkan and OpenGL
• Audio - Headphones, speakers and over HDMI when docked.
• Touchscreen(more fixes)
• Display
• WiFi(sleep fixes/stability fixes)
• CPU frequency scaling - The CPU scales from 200mhz to 1.7ghz (what switch is binned for) depending on the load its under. Fans are adjusted to account for this
• Full sdcard speed
• Hardware video acceleration when using the built in videos app (means you can watch videos without battery draining massively)
• Overclocking
• LP0 Sleep mode
• IMU/Ambiant Light sensor support
• reboot2payload
• Minerva Memory Training
• Support for Moonlight-QT
• Initramfs updates(fix partition resize, add boot logo, and error screens)

Prerequisites

• Minimum of 8 GB.

Downloads

• Standard: https://download.switchroot.org/ubuntu/switchroot-ubuntu-3.4.0-2021-07-23-v2.7z
• CUDA_Developer: Deprecated. update_only .7z still works on it. New users can use the above image and then run "sudo apt-get install nvidia-jetpack" to get the complete CUDA package

Torrent Links can be found here:
https://torrents.switchroot.org/ubuntu/

Updates for previous 3.0+ installs. 3.4.0 link below.
https://download.switchroot.org/ubuntu/switchroot-ubuntu-3.4.0-update_only-2021-07-23.7z
1. Remove l4t-ubuntu folder and bootloader\ini\01-ubuntu.ini from fat32 partition on sdcard.
2. Extract zip to fat32 partition on sdcard.(if you have no space, try removing all ubuntu related files from fat32 partition on sdcard, and try again.)
3. Dump joycon pairing info in hekate.(Only needs to be done if you havnt already done this)
4. Boot.

How to install:

1. Download the image (standard non cuda is probably what you want) you want from the downloads section.
2. Partition with hekate, make sure to leave enough room on fat32 to extract chosen image.
3. Extract 7z to fat32 partition, now labeled SWITCHSD
4. Flash image in partition manager in hekate to linux partition.
5. Go to NYX tools, and dump joycon pairing data, with joycons connected to console, after being paired in hos.
6. Launch ubuntu through hekate.
7. Wait for around 2-4 minutes while it initially loads.
8. Enjoy, you now have fully featured Ubuntu on your switch!

Notes:

• Pair procons by opening the bluetooth menu in settings and pressing the + button in the bottom left corner. Then press the sync button on the controller and select its name in the pairing window.
• To update the system run "sudo apt update", "sudo apt upgrade". This will apply all switch and ubuntu updates aside from kernel updates, they will be posted here if ever needed.
• CPU/GPU/Fan profiles and Overclocking are now handles in NVPmodel.
• Disabled sandboxing in Chromium in order to enable GPU acceleration
  Night and day difference. Existing users can add --no-sandbox to their desktop shortcut.

Ubuntu Bionic 3.4.0 Short Changelog:
- Better performances in many scenarios (As always that should affect apps/games/emus/etc)
- Significant better deep sleep. (Measured at 582 hours. 440% better).
- Faster wake up from sleep.
- Saved 240MB ram (fb and active file page pool, aka always used pool)
- Memory remapping 800%-2000% speed up. Mostly used by emulators and VMs (and lot in android).
- Some other memory optimizations, plus enabled huge ram pages
- Faster kernel and OS boot.
- Fixed tearing issues for NVDEC/NVENC. (video hw accel)
- Lower latency for frame end calcs for builtin display
- Fixed Hori pads for joycond
- Fixed an issue where it would make railed jc to disconnect on rumble
- Joycon/Procon rumble was improved and intensity tuned for better user experience
- Kernel now uses the proper display panel init/deinit by checking panel id
- Improved dock/undock script
- Touch stays enabled now in dock mode. Users that use docks that do not cover the screen can use it as alternative input.
- Added low ram protection. Now instead of hanging for minutes it will only stutter for seconds until oom occurs and recovers ram
- Better seamless display on boot
- uenv.txt changed, read uenv_readme.txt. It's simple to transfer over custom settings.
- Reboot action can now be defined in new uenv.txt. Reboot back into Linux by changing `reboot_action=` from `bootloader` to `via-payload`.

Apps Changes:
- Full video HW decoding via new SMPV Player app (also supports youtube links)
- Full video HW encoding via ffmpeg-l4t
- Added L4T-Megascript app
You can get or build various essential stuff, apps or emulators with a single click. All configured and optimized for Switch.
- Nvpmodel was updated to include Battery charging protection limits options
Useful when you are constantly docked and want to protect battery's life.
Limit gets saved and applied on boot.
Reminder that discharging can't happen when plugged in. Even when charging is off, usb power is used to supplement system.
So you need to discharge first if you want the battery % to go inside the limit.
That also disables charging in sleep in order for the feature to work.
If you reboot/shutdown, it gets disabled and re-enabled at the next L4T boot.
As always the source is public and all L4T based projects for Switch will benefit (L4T linux distros/Lakka/Android)


Sources
They can all be found at https://gitlab.com/switchroot with the other kernel repos on http://nv-tegra.nvidia.com

Use these scripts if you want to build your own kernel: https://gitlab.com/switchroot/kernel/l4t-kernel-build-scripts/tree/test

Credits
Bylaws,
Langerhans,
Ave,
Natinusala,
CTCaer(most of the hard stuff),
Gavin_Darkglider,
DanielOgorchock(Joycon drivers/joycond),
stary2001 (reboot2payload),
NVIDIA,
Azkali
Everyone else in switchroot - more info on that in the future.

 

[crow132]

With which of yours three batteries?..

with all of them i guess xDDD

 

[uyjulian]

I don't think Joy-Con batteries should be labeled as "Laptop battery"

 

[spotanjo3]

The first page need to update for changelog and bug list.

 

[crow132]

I'm still having issues with my wifi disconnecting sadly =/

 

[IGHOR]

the 450+mb of packages was installed in the old image. this image is the old image with all of the new stuff injected into it. I didnt even update the software, so it is still as outdated as the original release. I was planning on updating it all to the latest l4t root upstream at some point, but it is still 18.04, so

apt update && apt upgrade

should get you to the upstream stuff. currently I am looking at possible options to bring back hardware decoding for things like moonlight, and kodi.

I didn't ask question about updates, it is ok to use apt upgrade any way. I mean that original image could be smaller if no office installed.
So why you haven't reformat boot partition to make it work in all OSs? Is there any possible issues if I did that?

PS1: Touch screen dies at random time as before, so it is not fixed.
PS2: TV mode sometimes stops working and only internal screen enabled, so "dock handler fixes" also not complete.
PS3: Thanks for keeping this project alive. And it is shame that Nvidia is lazy to make new kernels release for L4T.

 

[Checcolino80]

I do not understand why both with Lakka and L4T do not see me the wifi card I am wrong or one of those switches that does not digest these things I state that everything works in normal and mod mode so I would exclude the broken wifi since in normal and mod it sees me quietly everything and retroarch on the mod works help me I'm going crazy I changed microsd as well but from the exact same problem formatted in fat32

 

[Keylogger]

I want to play GC games on dolphin but I have only 1 SD card with atmosphere and SXOS, can I boot L4T using the same SD card ?

 

[Dee8282]

Can’t seem to install programs,I get a message about vrar,also how do I know I’m using 2.0 it says I’m on 18.04?

 

[spotanjo3]

Can’t seem to install programs,I get a message about vrar,also how do I know I’m using 2.0 it says I’m on 18.04?

Did you use this?? here:

new Ubuntu Image to flash with etcher Consider this to be the 2.0 update: Note: Download is fixed, just flash and go. Enjoy the newish ubuntu stuff.

https://mega.nz/#!sAtxnY4D!ASH2iVxkyIx-aAcTjvqnluZhx2ix1CP-LAhjn44oklI

this has rel32 kernel..... that includes:
LP0 sleep mode
Joycon rail support/better bluetooth joycon support
Touchscreen Fixes
IMU/Ambiant light sensor support(Need intervention in userspace)
Charger Fixes.
Pinmuxing fixes,
sdcard fixes,
volume fixes,
dock handler fixes,
probably more, that I am forgetting.... it was a long list.

Credit:
@bylaws
@Langerhans
@CTCaer
@Gavin_Darkglider
@DanielOgorchock(Joycon drivers/joycond)
@everyone else involved in switchroot, and the previous ubuntu release.

Enjoy...

 

[crow132]

how can i make changes persistent? for example, theres no way for me to delete de chrome icon from the desktop

 

[Dee8282]

Did you use this?? here:

No I used the first link on the first page

 

[spotanjo3]

No I used the first link on the first page

Use this. Let us know.

 

[Dee8282]

Ok I’ll try when I get in,does joycon work well with this am I able to use the cursor with the joycon and for other stuff

 

[spotanjo3]

Ok I’ll try when I get in,does joycon work well with this am I able to use the cursor with the joycon and for other stuff

read the changelog above as I just posted for you.

 

[Dee8282]

Now I can install mugen??

 

[spotanjo3]

Now I can install mugen??

Why don't you try it ?

 

[Silent_Gunner]

Why don't you try it ?

If they had the MUGEN source code (which the community would love to have access to, btw), and have converted it to run on ARM64, sure.

However, I'm going to have to Press X To Doubt on them having the source code...

 

[Dee8282]

Let me ask my partner because he ran it on PS4 Linux so maybe it will

 

[Silent_Gunner]

Let me ask my partner because he ran it on PS4 Linux so maybe it will

...which has an x86-based processor, not ARM like what's on the Switch.

The closest you're getting to MUGEN on Switch is via streaming.

 

[uyjulian]

I don't think anyone made an open source interpreter for MUGEN yet.