Plex extremely slow buffering on F41

Ask Fedora
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1

Hi,

I’ve recently tried to used my Plex app on Fedora 41, but the extremely slow buffering is preventing me from it.
A basic h.264 or h.265 freezes every 5 sec. I tried from the Plex App and from the Web browser => same results.

I’m playing the videos from my local NAS and didn’t have any issue a month ago.
I also tried both (App + Browser) on my Windows partition, and everything works fine.

I’m not sure where to start looking to understand what could be wrong…

3

Have you installed the correct codecs and drivers for NVIDIA? Check rpmfusion.org

4

If you have an nvidia GPU and have not installed the proper drivers this could result in the problem you describe.
Please show us the output of inxi -Fzxx and dnf list --installed \*nvidia\* (as preformatted text with the </> button) so we may see the full hardware and driver info.

5

Here are the details:

Graphics:
  Device-1: NVIDIA AD103 [GeForce RTX 4070 Ti SUPER] vendor: ASUSTeK
    driver: nvidia v: 565.77 arch: Lovelace ports: active: none off: DP-2
    empty: DP-1,DP-3,HDMI-A-1 bus-ID: 0000:01:00.0 chip-ID: 10de:2705
  Display: wayland server: Xwayland v: 24.1.5 compositor: kwin_wayland
    driver: gpu: nvidia,nvidia-nvswitch display-ID: 0
  Monitor-1: DP-2 model: LG (GoldStar) ULTRAGEAR res: 3440x1440 hz: 144
    dpi: 109 diag: 867mm (34.1")
  API: EGL v: 1.5 platforms: device: 0 drv: nvidia gbm: drv: nvidia
    surfaceless: drv: nvidia wayland: drv: nvidia x11: drv: nvidia
  API: OpenGL v: 4.6.0 vendor: nvidia v: 565.77 glx-v: 1.4
    direct-render: yes renderer: NVIDIA GeForce RTX 4070 Ti SUPER/PCIe/SSE2
    display-ID: :0.0
  API: Vulkan v: 1.4.304 surfaces: xcb,xlib,wayland device: 0
    type: discrete-gpu driver: N/A device-ID: 10de:2705 device: 1 type: cpu
    driver: N/A device-ID: 10005:0000
  Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo
    de: kscreen-console,kscreen-doctor gpu: lact, nvidia-settings, nvidia-smi
    wl: wayland-info x11: xdriinfo, xdpyinfo, xprop, xrandr


Installed packages
akmod-nvidia.x86_64                        3:565.77-1.fc41 rpmfusion-nonfree-nvidia-driver
kmod-nvidia-6.12.10-200.fc41.x86_64.x86_64 3:565.77-1.fc41 @commandline
kmod-nvidia-6.12.11-200.fc41.x86_64.x86_64 3:565.77-1.fc41 @commandline
kmod-nvidia-6.12.13-200.fc41.x86_64.x86_64 3:565.77-1.fc41 @commandline
nvidia-gpu-firmware.noarch                 20241210-1.fc41 <unknown>
nvidia-modprobe.x86_64                     3:565.77-1.fc41 rpmfusion-nonfree-nvidia-driver
nvidia-persistenced.x86_64                 3:565.77-1.fc41 rpmfusion-nonfree-nvidia-driver
nvidia-settings.x86_64                     3:565.77-1.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia.x86_64                 3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-cuda.x86_64            3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-cuda-libs.i686         3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-cuda-libs.x86_64       3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-kmodsrc.x86_64         3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-libs.i686              3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-libs.x86_64            3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver
xorg-x11-drv-nvidia-power.x86_64           3:565.77-3.fc41 rpmfusion-nonfree-nvidia-driver

Worth mentioning that I have the issue on my desktop running Nvidia but also on my laptop running AMD. So, it’s probably an issue with either a Plex update or a Fedora update.

6

Just as an FYI, I have Plex running on my F41 workstation. I do not see any buffering with an H264 trailer. I have had Plex on this machine for years. I assume you installed Plex with the plex rpm? I am using Gnome.

Graphics:
  Device-1: NVIDIA GA106 [GeForce RTX 3060 Lite Hash Rate] vendor: Gigabyte
    driver: nvidia v: 565.77 arch: Ampere pcie: speed: 2.5 GT/s lanes: 4 ports:
    active: none off: DP-1,DP-2 empty: HDMI-A-1,HDMI-A-2 bus-ID: 04:00.0
    chip-ID: 10de:2504
  Device-2: Logitech Logitech Webcam C920-C driver: snd-usb-audio,uvcvideo
    type: USB rev: 2.0 speed: 480 Mb/s lanes: 1 bus-ID: 3-2:3 chip-ID: 046d:0841
  Display: wayland server: X.org v: 1.21.1.15 with: Xwayland v: 24.1.5
    compositor: gnome-shell driver: X: loaded: nouveau
    unloaded: fbdev,modesetting,vesa alternate: nv gpu: nvidia,nvidia-nvswitch
    display-ID: 0
  Monitor-1: DP-1 model: Dell U2717D res: 2560x1440 dpi: 109
    diag: 685mm (27")
  Monitor-2: DP-2 model: Dell U2717D res: 2560x1440 dpi: 109
    diag: 685mm (27")
  API: EGL v: 1.5 platforms: device: 0 drv: nvidia gbm: drv: nvidia
    surfaceless: drv: nvidia wayland: drv: nvidia x11: drv: nvidia
  API: OpenGL v: 4.6.0 vendor: nvidia v: 565.77 glx-v: 1.4
    direct-render: yes renderer: NVIDIA GeForce RTX 3060/PCIe/SSE2
    display-ID: :0.0
  Info: Tools: api: eglinfo,glxinfo gpu: nvidia-settings,nvidia-smi
    x11: xdriinfo, xdpyinfo, xprop, xrandr
7

The Plex server is installed on my Asustor NAS.
However, the desktop client on F41 is installed with Flatpak.

I think it’s the only option now with Snap store.

8

Ah. Ok. I have never used the desktop client so cannot be much help. I was using the web UI so the comparison may not be of much use.