Lenovo legion 5 linux touchpad

Lenovo legion 5 linux touchpad

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• Registered: ‎09-16-2017
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Legion 5 15ARH05 — touchpad & other issues on Linux

Are these Legion touchpad and screen brightness issues on Linux an AMD thing or do Intel variants have the same problems? Complaints I’m seeing here and elsewhere seem to be from Ryzen customers.

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• Registered: ‎08-26-2020
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Legion 5 15ARH05 — touchpad & other issues on Linux

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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

Yes, I saw the post about the AMD kernel patch for the touchpad yesterday. I decided to check the thread right after booting the most recent Manjaro live ISO (KDE). The keyboard brightness keys and UI adjustments worked and seemed to behave the same as Windows. If increments are off it’s not by much.

Thanks for your reply, it helps clear things up more.

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• Registered: ‎09-30-2020
• Location: Poland
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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

So guys, i am thinking about buying this Laptop for Linux OS. Except the touchbar problem (which is fixed by patch) and the brightness, are there any other issue with it? Or should i just go with it 🙂 How is Your experince? Will be rly greatfull for the answer.

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• Registered: ‎09-01-2020
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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

After boot or suspend i have problems with image scaling.

Ubuntu 20.04.1 LTS, kernel 5.8 with fix, nvidia 450 drivers, using gdm3.

Anybody knows how to resolve this issue?

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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

United States of America

• Posts: 10
• Registered: ‎09-16-2017
• Location: United States of America
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Re:Legion 5 15ARH05 — touchpad & other issues on Linux

No, can’t say I’ve had any keyboard problems with Linux and I’ve tried a few different distros. But one problem I do see lately is similar — whenever my Legion is switched to the Nvidia GPU in Manjaro (any DE) the mouse cursor gets stuck momentarily but it doesn’t freeze up. It’s a reported bug with Xorg Server on Manjaro and possibly other Arch based systems. AFAIK it only affects Optimus laptops of various makes and models and isn’t unique to Lenovo.

My only concern with the keyboard is that it seems a bit flimsy in the middle and dips inward when certain keys are pressed.

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Lenovo legion 5 linux touchpad

I own a Lenovo Legion 5 82B1000AUS, I was have many years with good experience with Lenovo Thinkpad T series those laptops was very good for work and totally Linux friendly, I use Linux Mint, Fedora and Backtrack (Kali old name), and based with this experience I decided to brought this gear but right now I’m very regretful about my decision, this laptops have so many issues working with Linux, I’m right now using Parrot OS after the initial installation the brightness works but after the Nvidia driver installation stops working, I read all the post of you guys and nothing works, I have to adjust the brightness using the Nvidia settings binary, FN keys doesn’t work. So the purpose of this post it’s to join all the info posted here to help others, all this info it’s based on my findings and for the members of this forum all the credits goes to them:

My Linux distro info:

Parrot OS Security.

Kernel: Linux parrot 5.10.0-6parrot1-amd64 #1 SMP Debian 5.10.28-6parrot1 (2021-04-12) x86_64 GNU/Linux

What works after installing: brightness (nouveau drivers), wifi (with signal issues), bluetooth (doesn’t work at all, sometimes freeze the OS), keyboard fn keys, hdmi, usb, fan control, etc.

What doesn’t work: trackpad.

Brightness Control:

When you install the closed source Nvidia drivers, brightness control will stop working, in Kali Linux this works for me (use your preferred plain text editor, graphical are totally more easy to use):

sudo vim /usr/share/X11/xorg.conf.d/10-nvidia.conf

find the bellow section in this :

In Parrot this doesn’t work, so I try with this:

1. Click on System>Administration>NVIDIA X Server Settings

2. On the left side menu click on DP-2_ (BOE Technology Group. )

3. Click on «Color Correction» tab and adjust the Brightness as you like. (This doesn’t survive to a reboot, you have to just do step 1, after open the Nvidia X Server Settings the brightness would be reduced again) FN keys would not do the job.

This should work on any desktop Debian based distro.

Wifi and Bluetooth

With wifi you should experience some weird signal behavior it’s a know issue for Debian distros I tested in Kali and Parrot, the solution it’s pretty easy, you have to change the firmware, this are the steps you have to do:

1. Find your wifi card model:

lspci | grep Network

you should see in the terminal something like below:

04:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)

My wifi card it’s an Intel AX200

2. Go to this website:

3. Find your Wifi model card.

4. Click on the Firmware link that match your card model.

5. Uncompressed the targz :

tar zxvf iwlwifi-cc-46.3cfab8da.0.tgz

6. Change the directory to the uncompressed one in step 5:

7. Copy the .ucode file to /lib/firmware directory:

cp iwlwifi-cc-a0-46.ucode /lib/firmware

With this firmware your wifi and Bluetooth should work now, works for me in Kali and Parrot and should work in any Debian based distro.

Trackpad

Ok this it’s not a permanent fix because it doesn’t survive to a reboot, but works

1. Execute the bellow in the next order, for every link you must hit enter:

su
cd /sys/class/gpio/
echo 386 > export
cd gpio386
echo out > direction
exit

After the echo out. trackpad should start work, you have to do this after every reboot or just build a basic bash script that do this for you, I’m will not recommend to execute this procedure with a cron job because the privilege escalation in the first line, an attacker can take advantage of this cron job to elevate privileges and do wherever he wants with your computer.

Final notes if anyone of Lenovo cares about, remember that your business success came from your consumers, just washing your hands saying that our laptops are not certified for whatever OS we choose to use it’s a lame answer, I will sold this laptop and never came back to brought Lenovo gear again in my life, I’m just a latino guy in a third world country that maybe doesn’t do any difference for your business profit, but I’m a trusted advisor for big company in Latam and for sure my feedback about Lenovo would make some noise. I’m totally understand how Linux open and closed source works, I know that all the manufacturers release their own Linux drives, but learn about Intel those guys always invest time of developers releasing drivers and software for the Linux community.

Update: I sold the laptop today to a developer guy who only use windows, so bye bye Lenovo.

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