▲ 40 r/debian+2 crossposts

Problem with flickering applications

How can I fix this?
Some apps flicker on my laptop's native screen when they're open in full-screen mode.

OS: Debian GNU/Linux 13 (trixie) x86_64
Host: ASUS EXPERTBOOK P5405CSA (1.0)
Kernel: Linux 6.12.101+deb13-amd64
Display (BOE0BC7): 2560x1600 @ 144 Hz (as 1464x915) in 14" [Built-in]
Display (DELL P2725HE): 1920x1080 @ 100 Hz in 27" [External] *
DE: GNOME 48.7
WM: Mutter (Wayland)
WM Theme: Adwaita

u/FailOk5600 — 3 days ago
▲ 119 r/olkb+1 crossposts

Just finished my wireless Sofle RGB build on SuperMini nRF52840! (almost)

Hi, just wanted to share that I finally finished my wireless split keyboard on nRFs....

Well, almost — I still need to make the case. I already found a good model for Sofle, now I just need to modify it: first, subtract space for the battery — that should be easy; second, figure out how to make an ergonomic slant/tilt.

Also, I need to make a protective "screen"/cover over the controller.

Since I don’t know exactly what angle is best, I’m leaning toward some kind of adjustable tenting solution. The main thing is that it should be 3D-printable.

Could you please give me some advice on how to do this? What screws and standoffs do you recommend for this kind of build?

u/FailOk5600 — 1 month ago
▲ 1 r/olkb+1 crossposts

Sofle RGB v2.1 on SuperMini nRF52840 — Need Help with ZMK Firmware

Hey everyone!

I’m continuing my first split build — Sofle RGB v2.1 with two SuperMini nRF52840 controllers from PandaKB. I’ve finally finished soldering, done all the jumpers, and checked everything. Now I’m stuck on the firmware part.

I understand that this MCU only supports ZMK (QMK is not suitable). But I’m completely lost when it comes to flashing:

I tried asking AI for help, but it feels like it’s just guessing solutions and it didn’t work.

Could you please help me with the following:

  1. Where is the best place to get firmware for Sofle RGB v2.1 + SuperMini nRF52840?
  2. Are there any ready-made .uf2 files for this exact build?
  3. How do I properly configure the build in ZMK (what needs to be changed in shield/keymap, etc.)?

I would really appreciate any advice, links to up-to-date guides, or help.
Thank you!

reddit.com
u/FailOk5600 — 2 months ago
▲ 11 r/olkb+1 crossposts

Help with Sofle RGB v2.1 build on SuperMini nRF52840

Hey everyone, I'm just starting my journey into soldering, so I still understand very little.

I'm building a split Sofle RGB v2.1 with two SuperMini nRF52840 controllers. The board seems to support wireless operation.

Diodes and hotswap sockets are already soldered, and the Front Side jumpers are done.

At first I thought all Sofle v2.1 PCBs were the same, but it turns out there are different versions. The main problem is that I can't find instructions specifically for my board — most guides are for the wired version, different controllers, or different PCBs. Because of this, I don’t understand some basic things.

Questions:

  1. In the controller area there are 4 columns of holes (2 on each side). The board has a rectangle drawn around the right columns (photo 4).

SuperMini has 13 pins on each side (photo 3), but the female sockets on the board only have 12 holes.

  • Which row should I solder the female sockets into — left or right? Maybe it should be done differently on the left PCB vs the right PCB?
  • Should the controller be inserted with components facing down (towards the board) or up? Or does it differ between halves?
  • Which of the 13 pins on the SuperMini remains unconnected?

I assume I should leave the top pins B+ and B- unconnected. There are also similar pads on the board with the same labels — maybe I need to connect the microcontroller pins to them? But I don’t want to guess randomly.

And in that case, I would need to install the microcontroller with components facing up, so that the corresponding B+ and B- pads are next to each other.

  1. I’m not sure which side (Back or Front) to solder some components on.
  • JST battery connector (CN1) — I think it goes on the back (photo 4).
  • ON/OFF switch — no idea… (photo 4)
  • Other elements whose names and purpose I don’t know — attached photo 5. Same question: which side?
  1. On photo 4 I also marked some green areas whose purpose I don’t understand and I don’t know what should go there (I either don’t have the matching parts or didn’t recognize them).

I would really appreciate any help!

u/FailOk5600 — 3 months ago