[Linux] gstreamer wont work

[d4vid1]

What happened?

Hi bro,
Game will not start

gstreamer packages installed already

sudo apt install gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
gstreamer1.0-plugins-base is already the newest version (1.26.6-1).
gstreamer1.0-plugins-good is already the newest version (1.26.5-1ubuntu2).
gstreamer1.0-plugins-bad is already the newest version (1.26.5-1ubuntu2).
gstreamer1.0-plugins-ugly is already the newest version (1.26.6-1).
gstreamer1.0-libav is already the newest version (1.26.6-1).
Summary:
Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 1

Version 0.2.3

stay on Connecting

Operating System

Linux

GeForce NOW Tier

Ultimate

Logs (required)

e
[2026-01-12T17:41:14Z ERROR opennow_streamer::app] Streaming error: Failed to create video decoder: Failed to create GStreamer decoder: Failed to create GStreamer pipeline: no element "h264parse"
[2026-01-12T17:41:14Z INFO  opennow_streamer::webrtc::signaling] Received SDP offer, length: 3178
[2026-01-12T17:41:14Z INFO  opennow_streamer::webrtc::signaling] Received: {"ack":1}
[2026-01-12T17:41:16Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:18Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:21Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:23Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:25Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:27Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:29Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:31Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:33Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T17:41:34Z ERROR opennow_streamer::webrtc::signaling] WebSocket error: WebSocket protocol error: Connection reset without closing handshake
[2026-01-12T17:41:39Z ERROR opennow_streamer::webrtc::signaling] Failed to send message: Trying to work with closed connection

2026-01-12T18:09:05Z INFO opennow_streamer::media::gstreamer_decoder] GStreamer pipeline: appsrc name=src is-live=true format=time do-timestamp=true max-buffers=1 ! h264parse ! avdec_h264 ! videoconvert n-threads=4 ! video/x-raw,format=NV12 ! appsink name=sink emit-signals=true max-buffers=1 drop=true sync=false wait-on-eos=false
[2026-01-12T18:09:05Z ERROR opennow_streamer::app] Streaming error: Failed to create video decoder: Failed to create GStreamer decoder: Failed to create GStreamer pipeline: no element "h264parse"
[2026-01-12T18:09:07Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:09Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:11Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:13Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:15Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:17Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:19Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:21Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:23Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-12T18:09:25Z ERROR opennow_streamer::webrtc::signaling] WebSocket error: WebSocket protocol error: Connection reset without closing handshake
[2026-01-12T18:09:25Z ERROR opennow_streamer::webrtc::signaling] Failed to send message: Trying to work with closed connection
[2026-01-12T18:12:24Z INFO opennow_streamer] Window lost focus - releasing all keys

Screenshots (optional)

No response

[zortos293]

hmm i see the issue

what are your specs can you show like neofetch

[d4vid1]

hmm i see the issue

what are your specs can you show like neofetch

OS: Kubuntu 25.10 (Questing Quokka) x86_64
Host: Precision 7820 Tower
Kernel: Linux 6.18.1-061801-generic
Uptime: 13 mins
Packages: 4247 (dpkg), 30 (flatpak-system), 18 (flatpak-user), 23 (snap)
Shell: bash 5.2.37
Display (BenQ EX3501R): 3440x1440 @ 100 Hz (as 2752x1152) in 35" [External, HDR]yyyyyyyyyyyyy
DE: KDE Plasma 6.5.4
WM: KWin (Wayland)
WM Theme: Layan
Theme: Breeze (Dark) [Qt], Nordic-darker [GTK2/3/4]
Icons: Gruvbox-Plus-Dark [Qt], Gruvbox-Plus-Dark [GTK2/3/4]
Font: Noto Sans (10pt) [Qt], Noto Sans (10pt) [GTK2/3/4] ./oyyyyyyyyyyyyyyyyyyo/.
Cursor: breeze (24px)
Terminal: konsole 25.8.3
Terminal Font: JetBrainsMonoNL Nerd Font (12pt)
CPU: 2 x Intel(R) Xeon(R) Gold 6154 (72) @ 3.70 GHz
GPU 1: AMD Radeon RX 6650 XT
GPU 2: NVIDIA GeForce RTX 4060 [Discrete]
Memory: 7.32 GiB / 123.27 GiB (6%)
Swap: 0 B / 125.00 GiB (0%)
Disk (/): 45.17 GiB / 76.35 GiB (59%) - ext4
Disk (/home): 220.44 GiB / 1.59 TiB (14%) - ext4
Disk (/media/disk): 403.63 GiB / 1.79 TiB (22%) - ext4
Local IP (wlx803f5d15e2e3):
Locale: de_DE.UTF-8

[d4vid1]

here is a gstreamer output

gst-inspect-1.0 h264parse
Factory Details:
Rank primary + 1 (257)
Long-name H.264 parser
Klass Codec/Parser/Converter/Video
Description Parses H.264 streams
Author Mark Nauwelaerts mark.nauwelaerts@collabora.co.uk
Documentation https://gstreamer.freedesktop.org/documentation/videoparsersbad/h264parse.html

Plugin Details:
Name videoparsersbad
Description videoparsers
Filename /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoparsersbad.so
Version 1.26.5
License LGPL
Source module gst-plugins-bad
Documentation https://gstreamer.freedesktop.org/documentation/videoparsersbad/
Source release date 2025-08-07
Binary package GStreamer Bad Plugins (Ubuntu)
Origin URL https://launchpad.net/ubuntu/+source/gst-plugins-bad1.0

GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstBaseParse
+----GstH264Parse

Element Flags:

• REQUIRE_INDEXABLE

Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
video/x-h264

SRC template: 'src'
Availability: Always
Capabilities:
video/x-h264
parsed: true
stream-format: { (string)avc, (string)avc3, (string)byte-stream }
alignment: { (string)au, (string)nal }

Element has no clocking capabilities.
Element has no URI handling capabilities.

Pads:
SINK: 'sink'
Pad Template: 'sink'
SRC: 'src'
Pad Template: 'src'

Element Properties:

config-interval : Send SPS and PPS Insertion Interval in seconds (sprop parameter sets will be multiplexed in the data stream when detected.) (0 = disabled, -1 = send with every IDR frame)
flags: lesbar, schreibbar
Integer. Range: -1 - 3600 Default: 0

disable-passthrough : Force processing (disables passthrough)
flags: lesbar, schreibbar
Boolean. Default: false

name : The name of the object
flags: lesbar, schreibbar
String. Default: "h264parse0"

parent : The parent of the object
flags: lesbar, schreibbar
Object of type "GstObject"

update-timecode : Update time code values in Picture Timing SEI if GstVideoTimeCodeMeta is attached to incoming buffer and also Picture Timing SEI exists in the bitstream. To make this property work, SPS must contain VUI and pic_struct_present_flag of VUI must be non-zero
flags: lesbar, schreibbar
Boolean. Default: false

[zortos293]

thank you for the info i will look into it

[real-limitless]

Im having the same issue as well on a AMD chip set. I made sure I have my Mesa Drivers as well.

My gst-inspect-1.0 h264parse also has data come back

I even tried all these 3 and they all work.

# gst-inspect-1.0 h265parse  
# gst-inspect-1.0 avdec_h265  
# gst-inspect-1.0 x265enc   

I even tested the pipeline all worked but some reason OpenNow isn't properly detecting my Decoders

# gst-launch-1.0 videotestsrc num-buffers=100 ! x265enc ! h265parse ! avdec_h265 ! videoconvert ! autovideosink

If it helps, here are my extra logs,

[2026-01-15T04:48:12Z INFO  opennow_streamer::media::gstreamer_decoder]   Software: H.264=false, H.265=false, AV1=true
[2026-01-15T04:48:12Z INFO  opennow_streamer::media::video] Using GStreamer decoder for H265 (auto-selects V4L2/VA/VAAPI/software)
[2026-01-15T04:48:12Z INFO  opennow_streamer::media::gstreamer_decoder] Creating GStreamer decoder: H265 1920x1080
[2026-01-15T04:48:12Z WARN  opennow_streamer::media::gstreamer_decoder] No hardware decoder available for H265, falling back to software: avdec_h265 
[2026-01-15T04:48:12Z WARN  opennow_streamer::media::gstreamer_decoder] For hardware acceleration, install: libva (Intel/AMD) or enable V4L2 (Raspberry Pi)
[2026-01-15T04:48:12Z INFO  opennow_streamer::media::gstreamer_decoder] GStreamer pipeline: appsrc name=src is-live=true format=time do-timestamp=true max-buffers=1 ! h265parse ! avdec_h265 ! videoconvert n-threads=4 ! video/x-raw,format=NV12 ! a
ppsink name=sink emit-signals=true max-buffers=1 drop=true sync=false wait-on-eos=false
[2026-01-15T04:48:12Z ERROR opennow_streamer::app] Streaming error: Failed to create video decoder: Failed to create GStreamer decoder: Failed to create GStreamer pipeline: no element "h265parse"
[2026-01-15T04:48:14Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-15T04:48:16Z INFO  opennow_streamer::webrtc::signaling] Received: {"hb":1}

I find it interesting, thats its not seeing h265parse via OpenNow but works fine on the host.

# vainfo
Trying display: wayland
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib64/dri-nonfree/radeonsi_drv_video.so
libva info: Trying to open /usr/lib64/dri-freeworld/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.22 (libva 2.22.0)
vainfo: Driver version: Mesa Gallium driver 25.2.7 for AMD Radeon 890M Graphics (radeonsi, gfx1150, LLVM 21.1.5, DRM 3.64, 6.18.5-200.fc43.x86_64)
vainfo: Supported profile and entrypoints
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointEncSlice
      VAProfileH264High               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointEncSlice
      VAProfileHEVCMain               : VAEntrypointVLD
      VAProfileHEVCMain               : VAEntrypointEncSlice
      VAProfileHEVCMain10             : VAEntrypointVLD
      VAProfileHEVCMain10             : VAEntrypointEncSlice
      VAProfileJPEGBaseline           : VAEntrypointVLD
      VAProfileVP9Profile0            : VAEntrypointVLD
      VAProfileVP9Profile2            : VAEntrypointVLD
      VAProfileAV1Profile0            : VAEntrypointVLD
      VAProfileAV1Profile0            : VAEntrypointEncSlice
      VAProfileNone                   : VAEntrypointVideoProc

[zortos293]

This has been fixed in the Native branch and will be available in v0.2.4.

Root cause:
The GStreamer plugin registry wasn't being updated properly, causing parser elements (h264parse, h265parse) to not be discovered even though they were installed on the system.

Changes:

• Force GStreamer registry update on Linux startup to ensure all plugins are discovered
• Added parser availability check with helpful installation hints if parsers are missing
• Updated the bundled Linux builds to allow system plugins as fallback (removed GST_PLUGIN_SYSTEM_PATH="" restriction)
• Added logging for available parsers to help debug future issues

After updating to v0.2.4, you should see log output like:

GStreamer parsers available: h264parse=true, h265parse=true, av1parse=true

If you still have issues, please share the logs and we can investigate further.

[zortos293]

If you'd like to test the fix before the official release, you can download the latest build from GitHub Actions:

1. Go to Actions
2. Click on the latest successful workflow run from the Native branch
3. Download the Linux artifact from the bottom of the page

Let me know if it works for you!

[d4vid1]

If you'd like to test the fix before the official release, you can download the latest build from GitHub Actions:

1. Go to [Actions](https://github.com/zortos293/OpenNOW/actions)

2. Click on the latest successful workflow run from the `Native` branch

3. Download the Linux artifact from the bottom of the page

Let me know if it works for you!

Hi , it will not work, i download latest available action workflow from here
https://github.com/zortos293/OpenNOW/actions/runs/21052951931/artifacts/5149008479

it stay on Connection

[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] GStreamer parsers available: h264parse=false, h265parse=false, av1parse=false
[2026-01-16T16:41:24Z WARN opennow_streamer::media::gstreamer_decoder] No video parsers found! Install gstreamer1.0-plugins-bad package.
[2026-01-16T16:41:24Z WARN opennow_streamer::media::gstreamer_decoder] On Ubuntu/Debian: sudo apt install gstreamer1.0-plugins-bad
[2026-01-16T16:41:24Z WARN opennow_streamer::media::gstreamer_decoder] On Fedora: sudo dnf install gstreamer1-plugins-bad-free
[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] GStreamer Linux decoders:
[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] V4L2 (Raspberry Pi): H.264=false, H.265=false, AV1=false
[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] VA (Intel/AMD): H.264=false, H.265=false, AV1=false
[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] VAAPI (legacy): H.264=false, H.265=false
[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] Software: H.264=false, H.265=false, AV1=true
[2026-01-16T16:41:24Z INFO opennow_streamer::media::video] Using GStreamer decoder for H264 (auto-selects V4L2/VA/VAAPI/software)
[2026-01-16T16:41:24Z INFO opennow_streamer::media::gstreamer_decoder] Creating GStreamer decoder: H264 1920x1080
[2026-01-16T16:41:24Z ERROR opennow_streamer::app] Streaming error: Failed to create video decoder: Failed to create GStreamer decoder: GStreamer parser 'h264parse' not found in plugin registry.
This element is required for video decoding.
Installation hints:
On Ubuntu/Debian: sudo apt install gstreamer1.0-plugins-bad
On Fedora: sudo dnf install gstreamer1-plugins-bad-free
On Arch: sudo pacman -S gst-plugins-bad
[2026-01-16T16:41:26Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:28Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:30Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:32Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:34Z INFO opennow_streamer] Window lost focus - releasing all keys
[2026-01-16T16:41:34Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:36Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:39Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:41Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:43Z INFO opennow_streamer::webrtc::signaling] Received: {"hb":1}
[2026-01-16T16:41:44Z ERROR opennow_streamer::webrtc::signaling] WebSocket error: WebSocket protocol error: Connection reset without closing handshake
[2026-01-16T16:41:49Z ERROR opennow_streamer::webrtc::signaling] Failed to send message: Trying to work with closed connection

gstreamer plugins installed already

sudo apt install gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
gstreamer1.0-plugins-base is already the newest version (1.26.6-1).
gstreamer1.0-plugins-good is already the newest version (1.26.5-1ubuntu2).
gstreamer1.0-plugins-bad is already the newest version (1.26.5-1ubuntu2).
gstreamer1.0-plugins-ugly is already the newest version (1.26.6-1).
gstreamer1.0-libav is already the newest version (1.26.6-1).
Summary:
Upgrading: 0, Installing: 0, Removing: 0, Not Upgrading: 0

[zortos293]

can you install gstreamer
like it said?

[zortos293]

does that fix the issue?