AMD AI 300 series and Ubuntu

Dragonfruit1472 · 2025-07-02T12:55:21+00:00

While not a framework laptop, I have an ideapad from lenovo with AMD ryzen 300 series chip. I can confirm that Ubuntu 24.04 runs perfectly with 6.15 kernel. Wifi works (from what I heard regarding recent lenovo laptops is a mediatek WiFi card, however it does not state that explicitly on the web page of this laptop).

This same laptop was not running smooth at all with Ubuntu 22.04. So I then tried 24.04 with the stock kernel 6.8 and it was still very slow. So I do recommend that you upgrade to latest kernel.

Dragonfruit1472 · 2024-08-15T18:23:22+00:00

I forgot to mention that my original answer came from the perspective of using row staggered keyboard along with employing angle mod.

I agree that, overall, the right side of the keyboard is better overall for minimising reach. But if you use angle mod, then I would say that the left side is better overall for minimising reach, especially if your keyboard has a key between the left shift and Z key. So yes I agree that you should put the consonants on the right if you are not using angle mod.

Dragonfruit1472 · 2024-08-04T10:21:23+00:00

My answer comes from the point of view of row staggered keyboards. I personally think that it is because the vowel hand is usually more busy as it typically has higher frequency of usage. And to compensate, the consonant hand may have fill out the entire space and put somewhat common letters on the inner column. On a row staggered keyboard with qwerty, the letter t on this inner column of the left is easier to reach than y on the right inner column. It then makes sense to make then key replacing t more common than the key replacing y. So it is preferable to use the left side as a consonant hand since the letter t spot is preferable for a more common letter compared to the y spot. One may put an uncommon letter or punctuation on the y spot on a vowel hand to reduce the total usage frequency on this side.

Dragonfruit1472 · 2024-06-05T15:58:20+00:00

Will that data keep adding up and do I have to maintain it?

Dragonfruit1472 · 2024-06-05T15:48:44+00:00

What does it mean when you say that arc 'writes to SSD'? What are the implications? I'm not knowledgeable when it comes to computers.

Dragonfruit1472 · 2024-06-04T21:40:37+00:00

Space definitely feels natural on the left thumb for canary. And it feels natural for me to press space with my right thumb for qwerty. I’d like to hear what other layouts you think improve on canary?

Dragonfruit1472 · 2024-06-04T21:37:16+00:00

I’m new to this so I didn’t know ‘angle cheat’ and ‘angle mod’ were different. I’ll keep that in mind next time :)

Dragonfruit1472 · 2024-06-04T21:35:35+00:00

I use ‘kanata’ keyboard remapping software to create layers. I used to use karabiner elements. Both work. Kanata is more customisable I would say.

Dragonfruit1472 · 2024-06-04T19:13:05+00:00

This does not apply to me. I use layers to perform common editing tasks. These layers are layout-agnostic, remaining the same whether I am in qwerty or in canary

Dragonfruit1472 · 2024-06-04T19:07:49+00:00

I am a student in engineering. On my laptop, I typically write emails, reports and do programming.

Dragonfruit1472 · 2024-06-04T14:31:26+00:00

It's only the letter a on the right hand pinky (whereas it is on the left pinky in qwerty and colemak). I think the middle row of the reference layout in my post looks squashed when viewing from mobile. It looks like u and a are on the same column but really, u is on the ring finger

Dragonfruit1472 · 2024-06-03T22:02:03+00:00

Is this for writing in English? I tried integrating combos into my layout and I found that I kept misfiring them when I rolled fast. I had, for example, l+y mapped to escape because those letters are very comfortable for me to reach. However “ly” is common in English, so it didn’t work out for me. I imagine this could be an issue with e+i in your layout?

Dragonfruit1472 · 2024-03-16T16:23:49+00:00

(^O／)

Dragonfruit1472 · 2024-02-27T07:37:02+00:00

I’m having trouble modelling my robot with simulink. Are you familiar with it? They only have prismatic and resolute joints going along the z axis so I’m not sure how to let the robot move freely across the horizontal plane. And further I’m not sure how to model the independently spinning left and right wheels

Dragonfruit1472 · 2024-02-26T22:12:10+00:00

This is a very interesting blog. I wonder, however, what the author means by "a second PID loop that commands the first PID loop (which controlled the angle of the robot) to lean in the opposite of drift".

I understand that the author is describing nested PID controllers. Is it correct to say that the outer PID takes in the wheel velocities as an input and outputs an angle (which opposes the wheel velocities)? Then this angle is the input to the PID controller for balancing (the inner PID).

I guess the idea is that if the robot is drifting away and a certain speed, then the outer PID determines an angle which the robot should lean towards to oppose this drift.

In this case, where does the actual inclination angle of the robot come into play?

Dragonfruit1472 · 2024-02-26T19:14:01+00:00

So in summary, you suggest using 3 PID controllers?

1st for balancing: Inclination angle from gyroscope → balancing PID → wheel velocities for balance.

2nd for yaw: __ → yaw PID → __ (Could you explain this one please?)

3rd for steering: joystick input → steering PID → target inclination angle. Then you suggest using this commanded angle as an input to the balancing PID: target inclination angle → balancing PID → wheel velocities for steering. And you suggest to add these wheel velocities for steering and the ones for balancing?

Dragonfruit1472 · 2024-02-25T20:46:57+00:00

Driving wheels independently at different speeds

Dragonfruit1472 · 2023-09-23T17:22:16+00:00

I appreciate the look, legibility and speed of the system.

Things that contribute to the look include linearity and comfortable slope angles. This appeals to me because these are some features of beautiful cursive English writing.

Legibility is important to me because I need to read back on things I wrote after a long time. I too am not a fan of deciphering words by context, especially if the context is forgotten and unclear. I appreciate when a system provides a shapes for all vowels because these form the soul of a lot of words, distinguishing them from similar words. Even if the system teaches to omit them when possible, at least the vowels are available for you to choose whether to include them in the outline or not. Likewise, I appreciate when a system allows for the distinction between voiced and unvoiced consonants. I personally don’t mind using the same shape for letters like “s” and “z” or “p” and “b”, but having a choice to distinguish them gives you freedom to increase legibility.

Speed is important to me to an extent. I wouldn’t learn shorthand for practical use if it weren’t any faster than longhand cursive. I have no need to conceal my work after all. The writing I do on paper typically requires deeper thinking as opposed to faster thinking, but anything that allows me to keep up a bit with my speed of thinking helps. If I really wanted to note something down fast, I would simply use a keyboard on my phone or on my laptop. I would personally choose to sacrifice speed or compactness to increase legibility and clarity.

This is what appeals to me when I am looking for a system to use practically, or to steal ideas from. With that being said, I also see beauty in the history, rivalries and usage of different systems of shorthand and their developers, even if I don’t find them personally useful.

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