Kdenlive proxy poor performance (nvidia Quadro M4000)

General Help
, ,
1

here is an HP Workstation with NVIDIA Quadro M4000 at work. Actualy i'm switching from debian 12 to Zorin OS 18 Core. Any kdenlive-Installation (apt, flathub, appimage) has a extrem poor performance on generating proxy-Files (which works on debian perfect).

Installed graphic-card-driver is "NVIDIA driver metapackage from nvidia-driver-580..." and it seems working right (glxgears 60fps). KDenlive tells "hardware encoders found and enabled (NVIDIA)".

I have tested encoding-Profiles "Automatic (NVIDIA)", "NVENC H264" and "x264-nvenc". While generating proxy-files with profile "Automatic (NVIDIA)" nvdia-smi shows a GPU-usage <10%. The source is a full-hd-video 50fps, 8 mins, 4,1GB, the target should be resized to 640 Pixel (standard-settings).

Why does kdenlive doesn't use the graphic-card completly?

2

Welcome to the Forum!

Does Your System run in Wayland or X11? You can check that with the Terminal Command echo $XDG_SESSION_TYPE

When it should run in Wayland, I would suggest to try it with switching to X11/Xorg. to do that, go to the Login Screen. Click on Your Profile so that the Password Field appears. When it is appeared, You should see a Gear Icon in the bottom right Corner. Click on it and choose the Option ''Zorin Desktop on Xorg'' and then log in.

Another Thing: To make sure that the Graphics Card is Your primary Output, use the Command sudo prime-select nvidia

3

Hi;

i'm using x11. I've made Tests with wayland without success.

$ sudo prime-select nvidia
[sudo] Passwort für rolf:
Error: no integrated GPU detected.

$ cat /var/log/gpu-manager.log
log_file: /var/log/gpu-manager.log
last_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
new_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
can't access /opt/amdgpu-pro/bin/amdgpu-pro-px
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-590srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-590
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-580srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-580
Found nvidia.ko module in /lib/modules/6.17.0-14-generic/kernel/nvidia-580/nvidia.ko
Looking for amdgpu modules in /lib/modules/6.17.0-14-generic/kernel
Looking for amdgpu modules in /lib/modules/6.17.0-14-generic/updates/dkms
Is nvidia loaded? yes
Was nvidia unloaded? no
Is nvidia blacklisted? no
Is intel loaded? no
Is radeon loaded? no
Is radeon blacklisted? no
Is amdgpu loaded? no
Is amdgpu blacklisted? no
Is amdgpu versioned? no
Is amdgpu pro stack? no
Is nouveau loaded? no
Is nouveau blacklisted? yes
Is nvidia kernel module available? yes
Is amdgpu kernel module available? no
Vendor/Device Id: 10de:13f1
BusID "PCI:1@0:0:0"
Is boot vga? yes
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
Takes 800ms to wait for nvidia udev rules completed.
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Does it require offloading? no
last cards number = 1
Has amd? no
Has intel? no
Has nvidia? yes
How many cards? 1
Has the system changed? No
Single card detected
Nothing to do

$ mokutil --sb-state
SecureBoot disabled

any ideas?

4

following googles-KI i've done:

sudo apt purge nvidia* libnvidia*
sudo apt autoremove
Reboot
"Additional Drivers" -> install nvidia-driver-535

nvidia-smi:
NVIDIA-SMI 535.288.01 Driver Version: 535.288.01 CUDA Version: 12.2

$ sudo prime-select nvidia
Error: no integrated GPU detected.

$ cat /var/log/gpu-manager.log
log_file: /var/log/gpu-manager.log
last_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
new_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
can't access /opt/amdgpu-pro/bin/amdgpu-pro-px
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-590srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-590
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-580srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-580
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-570srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-570
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-535srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-535
Found nvidia.ko module in /lib/modules/6.17.0-14-generic/kernel/nvidia-535/nvidia.ko
Looking for amdgpu modules in /lib/modules/6.17.0-14-generic/kernel
Looking for amdgpu modules in /lib/modules/6.17.0-14-generic/updates/dkms
Is nvidia loaded? yes
Was nvidia unloaded? no
Is nvidia blacklisted? no
Is intel loaded? no
Is radeon loaded? no
Is radeon blacklisted? no
Is amdgpu loaded? no
Is amdgpu blacklisted? no
Is amdgpu versioned? no
Is amdgpu pro stack? no
Is nouveau loaded? no
Is nouveau blacklisted? yes
Is nvidia kernel module available? yes
Is amdgpu kernel module available? no
Vendor/Device Id: 10de:13f1
BusID "PCI:1@0:0:0"
Is boot vga? yes
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
Takes 260ms to wait for nvidia udev rules completed.
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Does it require offloading? no
last cards number = 1
Has amd? no
Has intel? no
Has nvidia? yes
How many cards? 1
Has the system changed? No
Single card detected
Nothing to do

5

It doesn't detect the GPU ... I took a Look at Nvidia and it should work with the 580 Driver. Maybe the 6.17 Kernel could be a Point. Try it with starting in the 6.14 Kernel. to do that, choose on the GRUB Menu ''Advanced Options'' and choose the Option with the 6.14 Kernel. Then look if it works. If not stay in the 6.14 Kernel and try the following:

sudo apt purge nvidia* libnvidia*

sudo apt autoremove

sudo apt install nvidia-driver-580 nvidia-dkms-580

nvidia-smi

6

That doesn't change anything. Driver 5.80 with Kernel 6.14:

$ nvidia-smi
Tue Feb 17 19:40:11 2026
NVIDIA-SMI 580.126.09 Driver Version: 580.126.09 CUDA Version: 13.0

$ cat /var/log/gpu-manager.log
log_file: /var/log/gpu-manager.log
last_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
new_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
can't access /opt/amdgpu-pro/bin/amdgpu-pro-px
Looking for nvidia modules in /lib/modules/6.14.0-37-generic/kernel
Looking for nvidia modules in /lib/modules/6.14.0-37-generic/updates/dkms
Found nvidia.ko module in /lib/modules/6.14.0-37-generic/updates/dkms/nvidia.ko.zst
Looking for amdgpu modules in /lib/modules/6.14.0-37-generic/kernel
Looking for amdgpu modules in /lib/modules/6.14.0-37-generic/updates/dkms
Is nvidia loaded? yes
Was nvidia unloaded? no
Is nvidia blacklisted? no
Is intel loaded? no
Is radeon loaded? no
Is radeon blacklisted? no
Is amdgpu loaded? no
Is amdgpu blacklisted? no
Is amdgpu versioned? no
Is amdgpu pro stack? no
Is nouveau loaded? no
Is nouveau blacklisted? yes
Is nvidia kernel module available? yes
Is amdgpu kernel module available? no
Vendor/Device Id: 10de:13f1
BusID "PCI:1@0:0:0"
Is boot vga? yes
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
can't access /run/u-d-c-nvidia-drm-was-loaded file
Takes 200ms to wait for nvidia udev rules completed.
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Does it require offloading? no
last cards number = 1
Has amd? no
Has intel? no
Has nvidia? yes
How many cards? 1
Has the system changed? No
Single card detected
Nothing to do

$ sudo prime-select nvidia
[sudo] Passwort für rolf:
Error: no integrated GPU detected.

7

Could You post the whole Output of nvidia-smi please?

8

Kernel 6.17....

Wed Feb 18 11:00:47 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.126.09             Driver Version: 580.126.09     CUDA Version: 13.0     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  Quadro M4000                   Off |   00000000:01:00.0  On |                  N/A |
| 47%   44C    P0             44W /  120W |     354MiB /   8192MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A            2012      G   /usr/lib/xorg/Xorg                      144MiB |
|    0   N/A  N/A            2173    C+G   ...c/gnome-remote-desktop-daemon         61MiB |
|    0   N/A  N/A            2235      G   /usr/bin/gnome-shell                     69MiB |
|    0   N/A  N/A            6369      G   /usr/bin/kdenlive                        52MiB |
+-----------------------------------------------------------------------------------------+
9

Kernel 6.14....

$ nvidia-smi
Wed Feb 18 11:04:51 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.126.09             Driver Version: 580.126.09     CUDA Version: 13.0     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  Quadro M4000                   Off |   00000000:01:00.0  On |                  N/A |
| 51%   54C    P5             17W /  120W |     493MiB /   8192MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A            1942      G   /usr/lib/xorg/Xorg                      186MiB |
|    0   N/A  N/A            2103    C+G   ...c/gnome-remote-desktop-daemon         61MiB |
|    0   N/A  N/A            2164      G   /usr/bin/gnome-shell                     63MiB |
|    0   N/A  N/A            3947      G   ...rack-uuid=3190708988185955192        101MiB |
|    0   N/A  N/A            4555      G   /usr/bin/kdenlive                        52MiB |
+-----------------------------------------------------------------------------------------+
10

Okay, Card and Driver are detected ... When You go to Settings>About>Systemdetails, is there Your Graphics Card listed?

11

Systemdetailsbericht

Berichtdetails

  • Erstellungsdatum: 2026-02-18 12:57:08

Hardware-Informationen:

  • Hardware-Modell: HP HP Z240 Tower Workstation
  • Speicher: 32,0 GiB
  • Prozessor: Intel® Xeon® E3-1270 v5 × 8
  • Grafik: Quadro M4000
  • Festplattenkapazität: 4,6 TB

Software-Informationen:

  • Firmware-Version: N51 Ver. 01.92
  • Name des Betriebssystems: Zorin OS 18 Core
  • Betriebssystem-Build: (null)
  • Betriebssystem-Typ: 64-bit
  • Fenstermanager: X11
  • Kernel-Version: Linux 6.17.0-14-generic

gpu-manager is inactive. Should it be active?

○ gpu-manager.service - Detect the available GPUs and deal with any system changes
     Loaded: loaded (/usr/lib/systemd/system/gpu-manager.service; enabled; preset: enabled)
     Active: inactive (dead) since Wed 2026-02-18 13:21:39 CET; 34s ago
    Process: 725 ExecStart=/usr/bin/gpu-manager --log /var/log/gpu-manager.log (code=exited, status=0/SUCCESS)
   Main PID: 725 (code=exited, status=0/SUCCESS)
        CPU: 163ms

Feb 18 13:21:38 rolf-ws systemd[1]: Starting gpu-manager.service - Detect the available GPUs and deal with any system changes...
Feb 18 13:21:39 rolf-ws systemd[1]: gpu-manager.service: Deactivated successfully.
Feb 18 13:21:39 rolf-ws systemd[1]: Finished gpu-manager.service - Detect the available GPUs and deal with any system changes.
12

Okay, the Graphics Card is detected and right.

You can activate it with sudo systemctl start gpu-manager.service

13

still inactive:

rolf@rolf-ws:~$ sudo systemctl start gpu-manager.service
rolf@rolf-ws:~$ sudo systemctl status gpu-manager.service
○ gpu-manager.service - Detect the available GPUs and deal with any system changes
     Loaded: loaded (/usr/lib/systemd/system/gpu-manager.service; enabled; preset: enabled)
     Active: inactive (dead) since Wed 2026-02-18 15:43:18 CET; 3s ago
    Process: 5632 ExecStart=/usr/bin/gpu-manager --log /var/log/gpu-manager.log (code=exited, status=0/SUCCESS)
   Main PID: 5632 (code=exited, status=0/SUCCESS)
        CPU: 111ms

Feb 18 15:43:18 rolf-ws systemd[1]: Starting gpu-manager.service - Detect the available GPUs and deal with any system changes...
Feb 18 15:43:18 rolf-ws systemd[1]: gpu-manager.service: Deactivated successfully.
Feb 18 15:43:18 rolf-ws systemd[1]: Finished gpu-manager.service - Detect the available GPUs and deal with any system changes.

$ cat /var/log/gpu-manager.log
log_file: /var/log/gpu-manager.log
last_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
new_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot
can't access /opt/amdgpu-pro/bin/amdgpu-pro-px
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-590srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-590
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-580srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-580
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-570srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-570
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-535srv
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/kernel/nvidia-535
Looking for nvidia modules in /lib/modules/6.17.0-14-generic/updates/dkms
Found nvidia.ko module in /lib/modules/6.17.0-14-generic/updates/dkms/nvidia.ko.zst
Looking for amdgpu modules in /lib/modules/6.17.0-14-generic/kernel
Looking for amdgpu modules in /lib/modules/6.17.0-14-generic/updates/dkms
Is nvidia loaded? yes
Was nvidia unloaded? no
Is nvidia blacklisted? no
Is intel loaded? no
Is radeon loaded? no
Is radeon blacklisted? no
Is amdgpu loaded? no
Is amdgpu blacklisted? no
Is amdgpu versioned? no
Is amdgpu pro stack? no
Is nouveau loaded? no
Is nouveau blacklisted? yes
Is nvidia kernel module available? yes
Is amdgpu kernel module available? no
Vendor/Device Id: 10de:13f1
BusID "PCI:1@0:0:0"
Is boot vga? yes
Takes 0ms to wait for nvidia udev rules completed.
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Skipping "/dev/dri/card1", driven by "nvidia-drm"
Does it require offloading? no
last cards number = 1
Has amd? no
Has intel? no
Has nvidia? yes
How many cards? 1
Has the system changed? No
Single card detected
Nothing to do
14

after further invetigations i think we're looking at the wrong end. Running glmark2 i get a smooth output and nvtop lists 98% of GPU-usage:

screenshot

I think why "sudo prime-select nvidia" failes is not important and i have to set my focus on kdenlive<>nvidia.

15

I agree. I only wanted to be sure. And the Service might be inactive because it hasn't anything to report when the Card is already known.

For KdenLive: You wrote, You have that on .deb, AppImage and Flatpak, yes?

16

Yes. Actually the deb-version is installed and appimage lays byside. It seems that i'm missing a switch inside kdenlive for activating GPU-usage. But i think everything is active:

Bildschirmfoto vom 2026-02-19 10-45-05
Bildschirmfoto vom 2026-02-19 10-45-05514×411 32.1 KB

17

Maybe mark VAAPI, too and see if it behaves different. But it looks like the Card is detected.

18

nothing changes

19

Hmm ... I'm a bit out of Ideas here to be honest ... hte only other thing waht came to my Mind: Maybe KdenLive doesn't perform well with Your specific Graphics Card Model.