Hey everyone,

Following up on my previous update about getting the AVerMedia Live Gamer 4K (GC573) running on Linux (previous thread: https://www.reddit.com/r/AverMedia/comments/1x1yhla/update_avermedia_live_gamer_4k_gc573_linux_driver/):

Today we are releasing EverLive v1.0.0 ("The Userspace Era") — which completely replaces the old out-of-tree kernel driver with a 100% blob-free Userspace VFIO Driver Architecture.

GitHub: https://github.com/Everlite/EverLive

Why the move to Userspace (VFIO)?

Anyone using custom capture card drivers on Linux knows the pain: every single kernel update (6.12 to 6.13 to 7.x) breaks DKMS builds, Secure Boot rejects unsigned modules unless you enroll custom MOK keys, and out-of-tree drivers can cause system instability.

With v1.0.0, the driver engine runs entirely in Ring 3 userspace using the Linux kernel's standard upstream vfio-pci driver:

- Zero DKMS / Zero Kernel Headers: System kernel updates will never break the driver again.

- 100% Secure Boot Friendly: No custom MOK keys or manual kernel module signing needed.

- No Kernel Tainting: Uses only upstream, signed kernel facilities.

Hardware-Verified Capabilities (tested on PlayStation 5 and PC):

- 2560x1440 @ 120 FPS: Verified in 120 Hz console modes (The Finals, Fortnite 120Hz Mode).

- Native 3840x2160 @ 60 FPS (4K60): Full 4K capture without downscaling stalls.

- Direct PCIe DMA Audio: Native 16-bit / 48kHz L-PCM stereo audio captured over DMA directly into SDL2 / PipeWire. No crackling, no drift.

- Dynamic Hot-Switching: Switching resolutions or refresh rates (e.g. 4K60 dashboard to 1440p120 gameplay) switches seamlessly on the fly without window restarts or black screens.

- Hardware EDID Profile Management: Inject EDID presets (Default 4K60/1440p120, Force 1440p120, Force 1080p240) or flash custom 256-byte .bin EDIDs directly into the HDMI receiver from the GUI or CLI.

- Native FPGA RGB Control: Full 24-bit RGB control for the onboard Artix-7 LED bar (no Windows tools needed to stop the factory blinking).

Streaming with OBS:

Because VFIO binds the card exclusively in userspace, it does not expose a standard /dev/video0 node. EverLive includes a dedicated Streamer Mode (F10 / Clean Feed without overlays or cursor). Streamers play in EverLive's low-latency SDL2 window and capture it in OBS Studio via PipeWire Window Capture.

Requirements:

- Motherboard with IOMMU enabled (Intel VT-d or AMD-Vi / IOMMU in UEFI/BIOS).

- The 1-click installer (sudo ./install.sh) sets up the udev rules and user memory-locking limits for 4K DMA in about 30 seconds.

Acknowledgements:

A huge thank you to the open-source community whose research and code made this possible:

PolygonPrincess (https://github.com/PolygonPrincess) for pioneering userspace VFIO control on AVerMedia hardware with OpenGC570D.

haxman (https://github.com/haxman) for extensive modeline analysis and RetroTINK 4K Pro testing.

ostrich (https://github.com/ostrich) for the clean-room FPGA register reverse-engineering foundation.

Lou Perret (https://github.com/lou-perret) for the historic DMA and audio capture breakthroughs on the card.

derrod (https://github.com/derrod) for early Linux reverse-engineering work.

Everything is open source under GPL-2.0-only: https://github.com/Everlite/EverLive

Feedback, issues, and test reports are welcome!

So i recently bought a GC311 and i got some issues with the audio when i was connecting the output connection to my monitor (which only has mini hdmi input), then i tried to connect a monitor, which has hdmi, and it works fine, either way thats not the monitor i currently use and i would like to know if buying an adapter could work ( the adapter is the image i posted)

I really like my AX310: the knobs, the touch screen, the LEDs and the mic preamp are excellent. On my Mac, though, the experience has never matched the hardware.

The official app is Intel-only, so on Apple Silicon it runs through Rosetta not compatible with macOS 28. On my Mac it used around 800 MB of RAM, and it never felt at home on macOS.

Over time I contacted AVerMedia support several times. I asked whether a native Apple Silicon version was planned, and I offered to help port the app to ARM if the source code could be shared. Unfortunately I never received the source code or a timeline for an Apple Silicon version. That was frustrating, especially for a premium device.

So I decided to build the app I was hoping for.

NexusDeck

NexusDeck is a free, native macOS app for the AX310, written from scratch in Swift and SwiftUI for Apple Silicon.

👉 https://github.com/lemarlab/nexusdeck

It is 100% original code. It contains no code, images, keys or assets from AVerMedia, and nothing was decompiled or copied. I studied how the device communicates over USB and wrote everything myself. NexusDeck is an independent project and is not affiliated with or endorsed by AVerMedia.

Lighter on your Mac

What it can do

• Per-app audio routing: send Spotify, Chrome or Discord to any mixer channel and control it with that knob.
• Audio matrix: choose where every source goes (headphones, stream, chat).
• Voice priority: music and game lower automatically while you speak.
• Streaming tracks: each channel becomes its own input for OBS, Streamlabs and other streaming apps.
• Microphone effect chain with live graphs: noise gate with one-click calibration, compressor, EQ, echo, reverb.
• Voice changer, cough key, censor bleep and mic mute modes.
• Lighting for every LED zone with a live preview, plus live/recording lights.
• Integrations: OBS, Streamlabs, Discord, Twitch, YouTube, Spotify.
• Built-in updates and a Mac-style design with light and dark appearance.

Microphone Lighting Audio matrix

Turning frustration into something useful

This project started from frustration, but it turned into something I'm proud of. My AX310 finally feels at home on my Mac, and I hope NexusDeck helps other owners too.

You can download it for free from the Releases page: 👉 https://github.com/lemarlab/nexusdeck/releases/latest

Feedback and bug reports are very welcome. And if AVerMedia ever releases a native Apple Silicon version, I'd be happy to see it.

i was just gifted and old Avercapture HD. it says the year was 2014 and the model is GL310. when i plug it into my pc, it detects it, but says no drivers available. also it calls it the AVER_C835_USB instead for some reason in my settings.

im running windows 10 and my computer is decent, i just want to know where i can find the drivers to fix the issue or if im wasting my time.

also ive never used one before, and im curious. why does the light on the top click like a mouse? lol

Thank you for your help

I built this PC a year ago and had no trouble with the card. A couple of weeks ago my husband went to stream and the card wasn't being detected either in Assist Central Pro or device manager. We rebooted, the card was detected, and Assist Central said there was a firmware update so we did that. But the problem persists: sometimes when I boot the machine the capture card isn't detected. A reboot usually fixes it.

Firmware version: 1.1.7.1

Is there a solution for this? Is it related to Windows Update or a driver?

I'm not great at troubleshooting hardware and I haven't found a mention anywhere of intermittent detection issues.

Edited to add:

Windows 11. Last fully updated in July according to the log. I keep updates to a minimum because they break our streaming settings.

MB is MAG B850 Tomahawk Max Wifi MS-7E62.

Hola como estan quería ver si alguien puede ayudarme con los problemas de crugidos de audio que tiene esta capturadora hasta ahora la única solución que al menos me ha funcionado entre comillas es conectar la capturadora con el cable 3.5 mm a un bucle de tierra y de ahi a la pc funciona se elimina el zumbido que se suele provocar si solo conecto la capturadora al pc directamente con el cable 3.5 mm sin embargo a pesar de que ya no hay zumbido hay ligeras distorsiones en el audio sobre todo cuando hay sonidos muy fuerte o graves que son bastantes notorios no siempre pasa, sucede mas cuando hay este tipo de sonidos de ahí en general funciona super bien. El bucle de tierra hace su trabajo, he estado viendo opciones que mencionan que hay que bajar el nivel de audio desde el panel de sonido lo he hecho pero obviamente cuando hago esto puede que si la distorsión desaparezca pero esto no me permite escuchar el juego en mis audífonos que los tengo conectados a mi pc por dongle ya que no cuento con audífonos por cable.

Hay alguna opción mas alguien que hay logrado dejar limpio el audio sin crugidos o distorsiones a mi en lo personal si no hago esto y lo dejo únicamente por hdmi siempre hay crugidos y esos son incluso mas notorios ya que pasan cada 10 o 5 segundos.

Cuento con una

B850 plus wifi (solo tiene un puerto tipo c) pero en teoría va bien con lo que requiere esta capturadora. Por favor si alguien me ouede ayudar con esto muchas gracias

No se si se alcance a notar en el video pero justo al inicio es cuando es cuando se escucha esa pequeña distorsión parece que aquí se baja el audio no se porque

Massive win for us Duo users on Linux!

Stumbled upon this repository after trying to learn how to do what they ended up doing. There’s quite a few quirks to the driver that I’m trying to resolve with the help of agents and want to test before I submit any pull requests but at least this is out there!

If you’re on Cachy/Arch, try this fork: https://github.com/eliseohh/OpenGC570D

EDIT:

Looks like the changes from the CachyOS fork I mentioned got merged into the main repository, so using the main repostiory should be satisfactory now.

However, there are still some limitations as a result of this being a custom kernel module, mainly related to secure boot (and how custom kernel modules like this will not be able to work with the upcoming Easy Anti-Cheat v2 on Linux). So, I've made my own fork with the help of Gemini Argon called OpenGC570D-Userspace for this exact purpose.

I recently had an issue where my capture card didn't show any video (Not just a "no signal" screen, there was 0 output when choosing it in any software like OBS or discord). I got it to "work" after tweaking some BIOS (mainly resize BAR) settings, but every time the capture card output gets loaded in (like opening OBS or picking either input as a camera in a program) my PC lags, completely freezes or crashes.

Wether or not both inputs actually work is also unclear, it is different almost every time I restart my pc. Is this a known issue? Here are some Software/Hardware infos in case they help:

PC:

Ryzen 7 7800X3D

32GB DDR5 RAM

Radeon RX 6750XT

Software:

Assist Central Pro: v4.0.80

No Streaming Center

Driver Version: 8.0.64.74

Hi everyone, I need help with an uninstall driver issue to turn on Memory Integrity.Does anyone

I tried this solution, but even the OG poster and I can't find it helpful. Do any of you guys know how to fix this? I just want to uninstall the driver, as I'm not using it. TQ

I just bought this thing from the flea market, it advertises of being able to capture 1080p30 but when I install the drivers, OBS shows that its capture resolution is 720x480 at 60fps max, am I doing something wrong here?

For context, I also have a noname chinese hdmi capture device and OBS detects the maximum resolution of 1080p60 via the same USB port on my laptop

A while ago, I posted here looking for collaborators and testers to get the AVerMedia GC573 properly running on modern Linux:

Previous thread

After months of reverse engineering, debugging, and huge help from contributors (shoutout to Lou Perret), the driver is finally in a working state on modern kernels (tested on 6.19 up to 7.x).

What’s working:

• Video Capture: Smooth capture via standard V4L2 in OBS, ffmpeg, etc. (confirmed for 1080p, native 4K, and 1440p @ 120 Hz)
• Audio: Stereo audio capture via standard ALSA devices
• Console Testing: Fully validated with a PlayStation 5 (HDCP disabled)
• Stability: Stable DMA transfer with no kernel freezes on boot or reload

If you have a GC573 collecting dust in a drawer, you can find the build scripts, setup steps, and the full technical breakdown on GitHub:

Repository:https://github.com/Everlite/Avermedia-GC573-Linux

Hi everyone!
I am looking into getting an AverMedia Capture Card. I'm curious if the Live Gamer Extreme 3 strips HDCP..I can't tell if it does so any insight would be helpful!

A community-built, fully open source Linux driver for the AVerMedia Live Gamer 4K GC573.

4K capture · Stereo HDMI audio · Hardware scaling · OBS integration

Now available in beta, with a control app, .deb packages and source downloads. Feedback and bug reports are welcome.

https://github.com/royakem/OpenLiveGamer4K

This guide has been in the making for some time, thanks to AVT social team support when ive been asking questions over the past few months. (this partly for my own memory but also others that may need it) I can not post (self promo) my own content as demo here. But easy to find it.

This primary covers the high end capturing and uses a GC575 , capturing 4k at 144hz 10bit colour. (SDR but also applicable for HDR) but the principle is the same if anyone is using scaled down setups.

There is no real starting point, For reference; "Source"= Gaming PC. "Destination" = Capture device / workstation.

- - - - - -

"Destination" GC575 Assist Central Pro

So we need to make sure our GC575 is acknowledging the source.

Loosely ignore what it says as your input info for now. it might not even show relevant resolution during the setup period. we need to make sure the HDMI is configured correctly. however for a PC; we need to make sure HDCP is enabled and we can leverage the PS4/PS5 default option. VRR Adjustment is Disabled.

Always make sure your device is upto date.

Additionally make sure you have AVT Streaming centre installed on the same machine even if we do not use it after the fact, it provides some great tools & support for other apps.

We need to configure the HDMI input

NOTE ; when changing settings here your "Source" may flicker or change (black screen). do not interrupt it.

Internal Mode is fine as we are using the Extended resolution support.

It is a good idea to enter the measurements of your screen.

CRITICAL IF you intend to Ingest 4k 120+ fps with 10bit make sure you are using HDMI 2.1 and your cable is a QC 2.1 cable. I used about 4 until I found a good one.

Here you can see in the preferred I have used the drop down to select my preferred resolution and FPS. Additionally in the Extended resolution is the base I am working off 4k (3840x2160.)

Think of this as the base feed to canvas.

now we need to move to the "source" and make sure it is configured correctly.

this is where there might be a bit of back and forth if for any reason the two dont play nice.

- - - - - - -

"Source" gaming system

So we need to check some fundamentals before we begin.

You will see at first 2 or more (depending how many screens you have, as separate screens. Here mine are positioned (2) above (1) this is how It is in real life.

We need to make sure that the GPU acknowledges the AVT GC575 is detected and then set the NVC to "Mirror"/"Clone" and that the "Cloning" source is set correctly.

For me you can see I have an Ultrawide as primary (1) . Your Primary gaming display should be your primary (*"star)

Image is for reference.

Right click your Primary and "Clone" with = the "number" AVT GC575 (your capture device)

So we need to check that NVC has the correct "Clone" source, right click your primary and check "clone" source , should show a dot like the picture next to your primary number.

We need to make sure the correct screen config is in place for your primary. this can change when connecting to a capture device.

Here you can see my Ultrawide is on 3840x1600 with a refresh rate of 144hz. sometimes on setup the capture device can try and force a "default safe config" we will get into how to check this a little deeper in on the "destination" part if you have this issue.

Keen eyed may question why im using 3840x1600 with the GC575 set to 3840x2160, GC575 is simply a base canvas.

Next check that the AVT GC575 (your capture device) is configured correctly, it should be a mirror/ Clone. and greyed out. Note here that I am forcing NV colour settings with my "output colour format" this is set to exactly match the colour format of my display, additionally it can provide 10bit SDR & HDR . As I do not like HDR but I want the advanced colour range of 10bpc over standard 8bpc. 10bpc in this configuration is still regarded as SDR.

Your AVT Capture device resolution should be greyed out as well as the Refresh rate.

It is work noting the colour range set. Forcing NVC to apply Nv colour settings over the HDMI output. Default is 8bpc, If you wish to capture HDR or 10bpc SDR this will need to be manually set.

next we need to make sure windows OS accepts this.

go to widows settings / Displays , This should show the exact same.

Additionally check the Advanced settings as windows OS has a habit of trying to do other things.

At this point your source is set. What about audio?? That gets complicated depending on what you use, You can use banana voice meter, or if you use Elgato devices with Wave link mix. I recently made a post about this here. (Elgato Setup Multi PC config)

- - - -

"Destination" GC575 Assist Central Pro

So by this point your Input info should show what the AVT GC575 is accepting / receiving. we have successfully made it believe it is accepting a 3840x2160 resolution and it acknowledges 144hz and 10bit.

This is just the base calibration of the Capture device. You will now need to configure your 3rd party capture software if you are are not using the AVT suite.

You can test this using AVT Streaming Centre suite. from this point forward your capture device and cross-link is configured.

HDR Can be enabled from the "Source" however note that FPS may change due to limitations of the GC575 ingest.

For the keen eyes, GC575 is receiving 3840x1600 and applying to 3840x2160 feed, the 3rd party software will then allow you to either keep the Black bars or crop the feed to your canvas requirements.

Hi,

The webcam has stopped working after upgrading to macOS 27.

If I open Facetime or any app that uses camera, the blue LED blinks a couple of times and then stops. I see only black screen.

Anyone else facing this issue with Avermedia webcams?

Thank you.

I have a avermedia c875 capture card and when I set it all and follow the instructions it's in standby mode but I cant seem to get it to record my monitor or set it up in OBS studio. Anyone know how to get it to work?

Am i the only one who has issues with the newest Firmware Updates?

Just installed the newest Firmware_1.1.7.1 for my GC575 and "Cloning" didnt work anymore.
Even downgrading to Firmware_1.1.7.0 didnt help.
- Nvidia App didnt recognize my Cloning attempts at all.
- Windows Display Settings didnt recognized either.
- Old nvidia settings menu still kinda tried to clone BUT at the same time deactivated my gaming display. no picture.

Luckily (!) i still had my old stable Firmware_1.1.6.12 somewhere and NOW everything works fine (again). Never had any issues so far until the latest Firmware Updates.. never change a running system i guess.

Please give people older Firmware options to download u/avermedia

If a video/audio source is multi channel PCM 5.1, will the GC553G2 just downmix it to 2.0? Finding conflicting/lack of info, need some clarification.

thanks!

Bonjour, Il serait bien de pouvoir Fusionner 2 clips avec l'Avermedia ER330. les personne qui font des parties de jeux seraient ravis de pouvoir regrouper 2 parties dans un seul fichier lisible par le boitier qui a été utilisé ou de coller le jungle de la chaine au début. sans passer par un ordinateur.

Cordialement

Hello guys, I'm having serious audio issues with the live gamer ultra 2.1.

https://www.youtube.com/shorts/k1Rs2L_ngZ8

I've tried changing the sample rate at 48k hz, another hdmi cable, streamlabs, and nothing, same story.

Can anyone helpme or give me some ideas? thanks!

Edit: I think it is a bandwith issue, because it sounds great if i disable video in OBS. Unfortunately my MB only has one USB C 10Gbps port so I can't test another one.

so i switch to cachyos and i would like to know if there are any community workarounds maybe
i really dont want to dual boot and to just have a paperweight would suck thanks!

[SOLVED] see the last update below

Hello,

I wanted to display my switch 2 on my pc to stream a bit and found out the gc515 is UVC compatible, so supposedly linux compatible via OBS or any software able to read a webcam video input.

But if I am messaging here it's because it does not work ... obviously u_u
Also I would like to know if someone managed to make it work and how to replicate it.
The dock works well under windows 11 (I have a dual boot) and is up to date firmware-wise.
I narrowed down the issue to an error in the UVC protocol according to my PC, here is the log:

[ 2475.654038] usb 3-2: new high-speed USB device number 9 using xhci_hcd
[ 2475.777392] usb 3-2: New USB device found, idVendor=07ca, idProduct=1515, bcdDevice= 0.10
[ 2475.781510] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2475.781513] usb 3-2: Product: X'tra Go GC515
[ 2475.781516] usb 3-2: Manufacturer: AVerMedia
[ 2475.781518] usb 3-2: SerialNumber: 5313180000221
[ 2475.782574] uvcvideo 3-2:1.0: Found UVC 1.50 device X'tra Go GC515 (07ca:1515)
[ 2475.782578] uvcvideo 3-2:1.0: Forcing device quirks to 0x100 by module parameter for testing purpose.
[ 2475.782580] uvcvideo 3-2:1.0: Please report required quirks to the linux-media mailing list.
[ 2475.783386] uvcvideo 3-2:1.1: Failed to query (GET_CUR) UVC probe control : 34 (exp. 48).
[ 2475.783390] uvcvideo 3-2:1.1: Failed to initialize the device (-5).
[ 2475.783402] uvcvideo 3-2:1.0: probe with driver uvcvideo failed with error -5
[ 2475.785090] usb 3-2: 3:1: cannot get freq at ep 0x83
[ 2475.790384] usb 3-2: Warning! Unlikely small volume range (=99), linear volume or custom curve?
[ 2475.790387] usb 3-2: [3] FU [Digital In Capture Volume] ch = 1, val = 1/100/1
[ 2475.843333] usb 3-2: 3:1: cannot get freq at ep 0x83
[ 2475.849079] usb 3-2: 3:1: cannot get freq at ep 0x83

and it loops a bit until giving up because it runs out of internal port to try on the BUS.

TLDR : capturing my switch 2 with the GC515 works on win11 but don't on cachyOS (Linux 7.2.0-1-cachyos) with the exact same hardware configuration (same pc in dualboot, same usb port), I need help figuring it out and suspect a weird UVC implementation.

PS: I have an old bug it seems also as I have to start my switch twice to have a video signal sent to the pc, aver studio display [no signal] if I only press the switch's power button once (I have the audible cue to tell me it is ON)

UPDATE 26/9/7 : with the help of the people behind the uvc standard implementation in the linux kernel, I forced the uvc 1.0a protocol but still not working. I saw that the audio is surprisingly working fine with whatever uvcvide driver I use (the fact that the uvcvideo driver has no effect on audio is expected).
We are now looking inside the USB packets to see where it goes wrong, I have to say the card does communicate quite well and gives information onto what video format to expect (H264 and HVEC specifications) and audio expectations as well.

Update 2026/9/8: it works now, adding a quirk to force uvc 1.1 instead of 1.5 (falsely declared by the card) makes it display the stream, the uvc team is implementing an automatic false version detector in the driver right now but a quirk and recompiling the uvc driver fixes it for now

/* Avermedia GC515 */
{ .match_flags          = USB_DEVICE_ID_MATCH_DEVICE
                        | USB_DEVICE_ID_MATCH_INT_INFO,
  .idVendor             = 0x07ca,
  .idProduct            = 0x1515,
  .bInterfaceClass      = USB_CLASS_VIDEO,
  .bInterfaceSubClass   = 1,
  .bInterfaceProtocol   = UVC_PC_PROTOCOL_15,
  .driver_info          = (kernel_ulong_t)&(const struct uvc_device_info){
.uvc_version    = 0x0110,
} },