[nvctrl.cpp:53] XNVCtrl didn't find the correct display

[Cris-lml007]

I am aware of this error when running Mangohud with any game, I think this causes me to make the GPU information disappear, the libXNVCtrl.so library is on my computer so I don't see the problem.

$vkcube
MESA-INTEL: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

[2022-07-16 20:19:25.661] [MANGOHUD] [info] [config.cpp:112] skipping config: '/usr/bin/MangoHud.conf' [ not found ]
[2022-07-16 20:19:25.661] [MANGOHUD] [info] [config.cpp:112] skipping config: '/home/metallica/.config/MangoHud/vkcube.conf' [ not found ]
[2022-07-16 20:19:25.661] [MANGOHUD] [info] [config.cpp:117] parsing config: '/home/metallica/.config/MangoHud/MangoHud.conf'
Selected GPU 0: Intel(R) Iris(R) Plus Graphics (ICL GT2), type: 1
[2022-07-16 20:19:25.749] [MANGOHUD] [error] [nvctrl.cpp:53] XNVCtrl didn't find the correct display
[2022-07-16 20:19:25.749] [MANGOHUD] [info] [overlay.cpp:716] Uploading is disabled (permit_upload = 0)

Information of Graphics Card

$ inxi -G
Graphics:
  Device-1: Intel Iris Plus Graphics G7 driver: i915 v: kernel
  Device-2: AMD Topaz XT [Radeon R7 M260/M265 / M340/M360 M440/M445 530/535
    620/625 Mobile]
    driver: amdgpu v: kernel
  Device-3: Cheng Uei Precision Industry (Foxlink) HP TrueVision HD Camera
    type: USB driver: uvcvideo
  Display: x11 server: X.Org v: 1.21.1.3 with: Xwayland v: 22.1.0 driver:
    X: loaded: modesetting unloaded: fbdev,vesa gpu: i915 resolution:
    1: 1920x1080~60Hz 2: 1366x768~60Hz
  OpenGL: renderer: Mesa Intel Iris Plus Graphics (ICL GT2)
    v: 4.6 Mesa 22.0.4

SO:

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Kali
Description:	Kali GNU/Linux Rolling
Release:	2022.1
Codename:	kali-rolling

libXNVCtrl.so

$ find . -iname "*libXNVC*"
./libXNVCtrl.so.0.0.0
./libXNVCtrl.a
./libXNVCtrl.so.0
./libXNVCtrl.so

version MangoHud

$ sudo apt show mangohud
Package: mangohud
Version: 0.6.7-2
Priority: optional
Section: misc
Maintainer: Debian Games Team <[email protected]>
Installed-Size: 1.829 kB
Depends: libc6 (>= 2.33), libfmt8 (>= 8.1.1+ds1), libgcc-s1 (>= 3.0), libspdlog1-fmt8, libstdc++6 (>= 12)
Recommends: mangoctl
Suggests: libxnvctrl0, goverlay
Homepage: https://github.com/flightlessmango/MangoHud
Download-Size: 716 kB
APT-Manual-Installed: yes
APT-Sources: http://http.kali.org/kali kali-rolling/main amd64 Packages
Description: Vulkan/OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more
 MangoHud is a highly customizable overlay for Vulkan and OpenGL application to
 monitoring FPS, temperatures, CPU/GPU load and more.
 .
 This package includes the libraries for MangoHud and includes a script called
 mangohud to start it on any OpenGL or Vulkan application.
 To get data for Nvidia GPUs, you need to install libxnvctrl0.

[jackun]

That's nvidia stuff so of course it doesn't work. vkcube is running on intel gpu so not supported. try DRI_PRIME=1 and/or pci_dev option to force MangoHud to show AMD gpu stats. Otherwise try multi-gpu branch and show_all_gpus (iirc) option.

[Cris-lml007]

That's nvidia stuff so of course it doesn't work. vkcube is running on intel gpu so not supported. try DRI_PRIME=1 and/or pci_dev option to force MangoHud to show AMD gpu stats. Otherwise try multi-gpu branch and show_all_gpus (iirc) option.

and how do I get the pci_dev from my card?

[jackun]

Get from lspci for example, just add extra 0: in front of it.

0b:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XL/XT ...

Set in config file:

### Set to 'domain:bus:slot.function'
pci_dev=0:0b:0.0

Current git master might have a bug oops, v0.6.7-1 seems to work still.