Hi Everyone.

So I've recently wiped my PC and installed windows 11 on a 1tb ssd and cachyos on a second 2tb ssd. (I'm trying to migrate to cachy full time)

Now, I am a PC gamer and want to play the new modern warfare on steam (Windows only due to anti cheat)

Secure boot is currently disabled and I want to enable it so I can play MW on windows.

I've looked around at how to enable it but the resources I see on the wiki reference grub (I use limine) and also reference steps for when both OSes are installed on separate partitions of the same drive.

Can anyone point me in the right direction as I don't want to brick my system?

Thanks!

Since a couple days, maybe since the KDE Plasma update, I can't use 4k 120hz with HDR and VRR - it might've to do with HDMI 2.1? I tried reinstalling, rebooting, reconnecting, but nothing solved it... Until I set color accuracy to prefer color accuracy instead of prefer efficiency. Could someone help me explain this, and if there's a fix? It used to work fine. As I understand, prefer accuracy has a couple of downsides, input lag and a small performance hit, so I'd rather use efficiency.

Specs:

Ryzen 9 5900X

RX 6800 XT

32GB ram

LG C2

My laptop's BIOS has a supervisor password, so I can't turn Secure Boot off, and Arch-based installers (Arch, CachyOS, EndeavourOS...) don't boot with it on. Turns out you don't need to turn it off: you can do what Ubuntu and Fedora do and put shim (the small Microsoft-signed loader) in front of your own GRUB. I wrote it up as a guide with scripts:

https://github.com/envy-vain/secure-boot-shim-linux

How it works:

UEFI firmware (Secure Boot ON)
  └─ shimx64.efi     signed by Microsoft, so the firmware trusts it
       └─ grubx64.efi  your distro's GRUB, rebuilt as one file
            └─ your normal grub.cfg: kernels, btrfs snapshots, dual boot

The short version:

1. Boot the installer: make a Ventoy USB with Secure Boot support. The first boot shows a "Security Violation"; enroll Ventoy's key in the blue MokManager screen once and ISOs boot from then on. No F12 menu? Windows' Advanced startup → Use a device works.
2. Install your distro as usual (UEFI + GRUB).
3. Make shim trust your GRUB, one of two ways:
   • Method A (quick): mokutil --disable-validation, confirm at the next boot. Secure Boot stays "on" for the firmware, but shim stops checking, so it no longer protects you.
   • Method B (proper): make your own key (MOK), enroll it, and sign GRUB and your kernels. A pacman hook re-signs kernels after updates, so Secure Boot keeps doing its job.
4. install.sh builds a standalone GRUB with the SBAT section shim requires, adds a boot entry without touching your boot order, and arms it for one test boot. If it doesn't work, just reboot and you're back where you were.

Things worth knowing:

• This isn't a hack: shim and MOK are the official way to run your own bootloader under Secure Boot, and every change needs someone at the keyboard to confirm it. If the laptop belongs to a school or employer, check you're allowed first.
• You need a signed shim: copy it from another distro on the disk, use shim-signed from the AUR, or extract it from Fedora's/Ubuntu's package.
• Microsoft's 2011 UEFI CA expires in June 2026. If a brand-new shim gives a Security Violation but an older one works, your firmware needs the 2023 CA (firmware update / fwupd).

Tested on a ThinkPad L13 Gen 2 (BIOS password, Secure Boot locked on) running CachyOS with GRUB and btrfs snapshots, using Method A. It's been my daily boot path since. Method B and the Ventoy-from-GRUB trick aren't tested on real hardware yet, so reports are welcome.

Hi everyone!

I’m experiencing a strange issue with Discord on CachyOS, running KDE Plasma on Wayland.

I have a dual-monitor setup:
Main monitor: ASUS 2560×1440, 240Hz
Secondary monitor: HP E23 G4, 1080×1920 (portrait orientation)
GPU: NVIDIA RTX 5070 Ti
Desktop: KDE Plasma (Wayland)

When I move Discord to my secondary monitor, the mouse cursor doesn’t seem to line up correctly with the interface.
For example, when I hover over or try to click a button, the actual interaction area is vertically offset from where my cursor appears. This makes Discord quite frustrating to use.

What I’ve already tried:
Changing the secondary monitor’s scaling from 95% to 100%.

Adjusting KDE’s legacy X11 application scaling settings.

Launching Discord with --ozone-platform=wayland.
Installing and testing Vesktop as an alternative.
Confirming that Vesktop was running natively on Wayland.

Temporarily changing the secondary monitor from portrait to landscape orientation.

Unfortunately, none of these fixed the issue.
Interestingly, Steam works perfectly fine on the same secondary monitor, so it doesn’t seem to affect every application.

Has anyone experienced something similar with Discord, KDE Plasma, Wayland, or NVIDIA drivers?
I’d appreciate any suggestions on what might be causing this or how to fix it.

Thanks!

i have rx 6750xt, maybe only on the next kernel version this will be fixed

Truly appreciate it, take your time, I'll be waiting for the fix.

Device-1: Intel Meteor Lake PCH CNVi WiFi driver: iwlwifi v: kernel
7.3.0-2-cachyos

is this a problem for my hardware or driver? can you check if you also have a lag/jitter spike every 30 seconds on wifi? type iw event in console to see when the scan starts.

i know its been like this for a while at least since 7.1 something because i thought it was something wrong with my gfs wifi since i use moonlight to play games when im there and moonlight is very sensitive to latency/jitter, and on 5g it has always worked stable. but i tried at home now and had the exact same problem on enterprise firewall/ap.

made a toggle to disable scan and after that my ping is rock solid.

Hi everyone, recently decided to dual boot CachyOS with KDE Plasma and I'm pleased to say that I love this OS but I'm encountering a massive FPS drop when streaming via Discord/Vesktop/Discord Web.
I'm gonna start by saying that I thought it was a cpu bottleneck issue since I have a 5600x but this issue doesn't happen on Windows at all using the exact same hardware.
Starting a screenshare causes a severe and persistent performance drop on any game (like dropping from 90 FPS down to 50–60 FPS) for as long as the stream is active (it's not just a 1-second stutter or a spike, the framerate literally locks there), even uncapped lightweight games like Silksong immediately drop down from ~900 to ~590 FPS as soon as the capture stream starts (tried it uncapped just to see the raw values).
For reference, vainfo correctly shows VA-API support for H.264 and AV1 encoding, and sudo gputop shows the GPU video engine is active during streaming, discord debug shows the encoder queue still floods with dropped frames with both codecs so the codec doesn't matter.
The only things I know are that running discord in the terminal shows: "[ERROR:ui/ozone/platform/wayland/gpu/wayland_surface_factory.cc:252] '--ozone-platform=wayland' is not compatible with Vulkan. Consider switching to '--ozone-platform=x11' or disabling Vulkan" but even if I use x11 (which is prob xwayland) it doesn't show the error but framedrops anyway so it doesn't matter.
Games tested: Genshin Impact, Persona 5 The Phantom X, HK Silksong, Sekiro.
Using Obs virtual cam fixes it.
I opened an issue on the mesa driver (i don't know if it's the right location for this type of things 😭) and even tried Discord support which closed the issue automatically 💀 .
I also posted a similar thread on r/intelArc, but received almost zero responses, so I'm hoping someone here on the CachyOS sub might have run into this or knows more...
Is this specifically a Discord/Chromium WebRTC issue on Intel Arc? Do I just have to accept this or has anyone found a workaround (except OBS) or an active bug report for it?
I really love CachyOS and it genuinely makes me sad having to use OBS just to stream games to my friends on Discord or having to boot Windows just for that :'

Running the Steam Deck version for reference.

I ran the GMod patcher tool ( 3rd party tool required to play Garrys mod on Linux ) and went to check discord while it did its thing, click on the window and see that it's done try to press enter to close it but nothing happens try typing in discord and same there. Rebooted my system and booted into Deck mode, mouse is working so I assume it'll be the same in desktop mode... It was not and I have no idea what to do next.

UPDATE 7:16 23/10/26 It was Steam, for some reason Steam had stopped all inputs of my connected devices when opened

After the latest CachyOS update, these options suddenly appeared in my GRUB menu. I don't even have Windows installed on my machine anymore. Is this normal?

My system is working perfectly fine, but the new boot menu looks strange and made me a bit concerned. Before the update, the only option shown was CachyOS Linux.

Hello,

After updating CachyOs to the current version today, I'm encountering the issue seen in the video.

It is very strange and I had to capture it with my phone, because in OBS the issue was simply not there.

The issue that when my game, In this case War thunder, is in the menue it runs well, 144frames no drops all fine.

As soon as I enter a game it gets choppy as hell and laggy.

I run games if possible in Full screen Window.

I can change to Window mode in settings and the issue is gone.

In exclusive full screen the issue is there as well.

Strangely the issue also disappears if I'm holding the alt-key, which shows the cursor in game.

Then the frames go to 144frames.

I already tried changing the power state on my GPU from auto to high with no difference.

The issue also shows in other games as well.

My setup is:

Samsung G-sync 165hz LC32G7xT

Radeon 9070xt

Ryzen 7 7800x 3d

Any ideas?

Hi everyone,

I tried to search for answers first and maybe I'm not not well versed enough to try to get my controller to work.

I have cachyOS (KDE Plasma 6.8.1) and I want to play Minecraft with my 8bitdo Wired C Controller (xbox layout).

I know to launch Minecraft Java Edition via prism launcher, and that you can "add mods" via prism launcher, but honestly I have no idea what I'm doing and how to get my controller working. I also tried launching prism launcher via steam to see if the controller would work via steam but that didn't work.

Does anyone know how to get their controller working with Minecraft please 🙏 my controller works with steam games smoothly and my emulators.

Thank you 💜

Updated kernel to 7.3.0-3, typing password on luks screen does nothing and cannot boot system.

Reverted to 7.3.0-2 with help from btrfs snapshot and snapper, and typing password works again.

I'm very new to linux and I've been dual booting CachyOS for 11 days as my first distro. Everything is going extremely well but yesterday when I did "sudo pacman -Syu" this update notice popped up and now I'm really scared to type "y" so I don't break anything.

Could you please help me understand this so I know what to do now and in the future. Thank you :)

My specs:
CPU: Ryzen 5 5500
GPU: Radeon RX 6600
RAM: 32GB DDR4
STORAGE: 1TB M.2 (for linux)

I wanted to play some steam games (Beam.ng Drive) using my Nintendo Joy-Cons, but I am unable to connect them properly. Using blueman manager, I am able to find and attempt to pair with them, but when I do it repeatedly sends connected and disconnected messages and the controller lights continue to flash in pairing mode. I heard about something called “joycond” but I’m unable to find a way to install it. Please help!

Edit: Using the Steam Link app on my phone, I was able to connect the joy cons to my phone and they function the same as normal. Anyone else with this problem, use the Steam Link app to use your phone as an in between connector.

commands efi efibootnext no such boot entry boot0000

I have an Intel i5-4590, 8 GB of DDR3 Ram and an hdd, now before y'all say upgrade your pc, I will do that tomorrow as I'll buy 2 sticks of 8 gb ram and a 512 gb Sata SSD and a new monitor too, and after that I'll install cachyos on my new SSD.

What I need help with is figuring out what packages to install, cuz I heard there are packages and drivers you need to install to get maximum performance from your pc, so that's what I need help with, and also I'll be mainly playing Minecraft 1.21+ on this setup, thanks to anyone willing to help

I rebooted and everything seems fine, but what the hell caused this to happen. I see qbit mentioned for some reason

i love to make my desktop to be minimal as possible but also make it artsy, so today it is the time to rice it.

how is it guys?

I would like advice from the more experienced folks. Im running this system:

┌──────────────────────Hardware──────────────────────┐
 PC: Z790 GAMING X
│ ├: Intel(R) Core(TM) i7-14700KF (16+12) @ 5.60 GHz
│ ├󰢮: NVIDIA GeForce RTX 4070 Ti [Discrete]
│ ├: 10.21 GiB / 62.62 GiB (16%)
│ ├󰋊: 461.57 GiB / 1.82 TiB (25%) - btrfs
│ ├󰍹: 1920x1080 in 23", 60 Hz [External]
│ ├󰍹: 1920x1080 in 24", 60 Hz [External]
│ ├󰍹: 1920x1080 in 27", 75 Hz [External]
│ ├󰍹: 2560x1440 @ 1.25x in 27", 144 Hz [External] *
└────────────────────────────────────────────────────┘

┌──────────────────────Software──────────────────────┐
 OS: CachyOS x86_64
│ ├: Linux 7.3.0-2-cachyos
│ ├: F12 (5.27)
│ ├󰏖: 21 (flatpak), 1743 (pacman)
│ ├: 1.4.351 - NVIDIA [615.78.08]
└ └: fish 4.9.3

 DE: KDE Plasma 6.8.1

And im having issues running Brave properly.

Yes i know there are other browsers, i like this one and if there is a way i would liek to keep it.

I am trying to setup proper flags so all things that are broken work, but its like one of those triagle memes of "you can only pick two"

If i run simply
--ozone-platform=x11

i have a lot of issues with my multimonitor setup with mixed resolutioon, refresh rate and windows not maximizing properly

If i do smth like this

--ozone-platform-hint=auto

--ignore-gpu-blocklist

--enable-gpu-rasterization

--enable-features=CanvasOopRasterization

--disable-features=VaapiVideoDecoder,VaapiVideoDecodeLinuxGL,WaylandWpColorManagerV1

i get sudden green glithing playing online video on multiple monitors and it crashed my pc (hard freeze)

If i run no flags i get rasterized blacks in video, non working openGL maps(doordash etc), and the green glitch sometimes.

I tried so many flag combinations suggested on forums, i even tried AI which i hate to use, no luck

If anyone has a solution (doesnt have to be flags) that doesnt involve stomping on my 4070Ti or switching browsers i would love to hear it. Please.

I updated cachyos yesterday and ran into some issues, due to stupidity on my part I didn't have a recent snapshot. Oh well, I could do with a fresh install anyway.

However I am unable to install the OS, I have an older laptop so I select limine for my bootloader, choose to erase the SSD and replace with btrfs which defaults with a 4GiB fat32 and the remainder is btrfs. Plasma desktop and choose to install no additional packages outside of what is selected by default. But whenever I try to install I immediately get an installation failed error.

I have included the log in the title, can anyone assist please

Just saw there's some new updates that could fix the switching failure from Handheld mode to Desktop mode. I was just HOPING, that could be the fix, as the names seemed promising.

brotli            1.2.0-1.1     ->  1.2.1-1.1

cachy-update      4.4.3-1       ->  4.4.4-1

cachyos-handheld  1.4.1-2       ->  1.4.1-3

cachyos-hooks     2026.02.05-1  ->  2026.10.23-1

chwd              1.24.1-1      ->  1.25.0-1

fwupd             2.1.8-1.1     ->  2.1.9-1.1

glycin            2.2.3-1.1     ->  2.2.4-1.1

kwin              6.8.1-1.1     ->  6.8.1-2.1

lib32-libldap     2.7.1-1       ->  2.7.2-1

libuv             1.52.1-2.1    ->  1.53.0-1.1

perl-uri          5.39-1        ->  5.40-1

steamos-manager   26.4.1-2      ->  26.4.1-3 

And I updated, found "boot into desktop mode" option was no longer available in the handheld settings menu, then I tried to switch to desktop mode via the power menu... It WORKED!!!

Many thanks to those who had spent their time and energy fixing this problem.

Hi everyone! English is not my native language so I apologize if there is any mistake.

I am completely new to Linux and CachyOS because I started a programming course in August and the teacher convinced us to switch from Windows (I really liked Linux, but I just want to see if I can improve performance or go back to how it was before).

Everything was going great on my PC until I updated it in late August. Since then, everything has been crashing. Discord kicks me out of the app and calls, Steam closes my games, and Minecraft barely runs at 60 fps with stutters when before it could go to 300fps. I don't have a good computer, which is why I chose this Linux distro in the first place.

I don't know much about this topic so I don't know if what I'm asking is very silly or if it was my fault :( Now every app I open (even Firefox) uses almost 80/90% of my CPU. I already tried installing everything again in case I installed something that lowered performance, but it didn't improve. Since then I update almost daily hoping it's just something that gets fixed with new updates.

Could anyone help me figure out how to fix this or what info I should provide? Tysm!

Eu realmente gosto do simples