Flutter Linux applications crash immediately on startup with the following assertion failure: Assertion 0 && "Couldn't find current GLX or EGL context.\n"' failed. #173837
Description
Steps to reproduce
This appears to be related to libepoxy not finding a valid OpenGL context when Flutter initializes its rendering engine.
Steps to Reproduce:
- Create any Flutter Linux application
- Run
flutter run -d linuxon a system with NVIDIA graphics - Application crashes immediately with epoxy assertion
System Information:
-
OS: Linux mint
-
Flutter version: Flutter 3.32.8 • channel stable • https://github.com/flutter/flutter.git
Framework • revision edada7c (3 weeks ago) • 2025-07-25 14:08:03 +0000
Engine • revision ef0cd00 (3 weeks ago) • 2025-07-24 12:23:50 -0700
Tools • Dart 3.8.1 • DevTools 2.45.1 -
GPU: NVIDIA GeForce RTX 3070 Ti
-
Driver: NVIDIA 550.163.01
-
**Desktop Environment:**Cinnamon
Additional Context:
- Direct OpenGL rendering works fine (verified with
glxinfo) - Hardware acceleration is available and functional
- Issue persists with various environment variables and GL context pre-creation attempts
- Problem appears to be that Flutter's epoxy integration expects a GL context to already exist when it initializes
Expected Behavior:
Flutter Linux application should start normally and render using hardware acceleration.
Actual Behavior:
Application crashes with epoxy assertion before any Flutter rendering begins.
It is related to this:
supermorse_flutter: ../src/dispatch_common.c:872: epoxy_get_proc_address: Assertion `0 && "Couldn't find current GLX or EGL context.\n"' failed.`
=== Flutter Version ===
Flutter 3.32.8 • channel stable • https://github.com/flutter/flutter.git
Framework • revision edada7c56e (3 weeks ago) • 2025-07-25 14:08:03 +0000
Engine • revision ef0cd00091 (3 weeks ago) • 2025-07-24 12:23:50 -0700
Tools • Dart 3.8.1 • DevTools 2.45.1
[✓] Flutter (Channel stable, 3.32.8, on Linux Mint 22.1 6.8.0-71-generic, locale nb_NO.UTF-8) [36ms]
• Flutter version 3.32.8 on channel stable at /home/haaken/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision edada7c56e (3 weeks ago), 2025-07-25 14:08:03 +0000
• Engine revision ef0cd00091
• Dart version 3.8.1
• DevTools version 2.45.1
[✗] Android toolchain - develop for Android devices [38ms]
✗ Unable to locate Android SDK.
Install Android Studio from: https://developer.android.com/studio/index.html
On first launch it will assist you in installing the Android SDK components.
(or visit https://flutter.dev/to/linux-android-setup for detailed instructions).
If the Android SDK has been installed to a custom location, please use
`flutter config --android-sdk` to update to that location.
[✓] Chrome - develop for the web [16ms]
• Chrome at google-chrome
[✓] Linux toolchain - develop for Linux desktop [396ms]
• Ubuntu clang version 18.1.3 (1ubuntu1)
• cmake version 3.28.3
• ninja version 1.11.1
• pkg-config version 1.8.1
• OpenGL core renderer: NVIDIA GeForce RTX 3070 Ti/PCIe/SSE2 (X11)
• OpenGL core version: 4.6.0 NVIDIA 550.163.01 (X11)
• OpenGL core shading language version: 4.60 NVIDIA (X11)
• OpenGL ES renderer: NVIDIA GeForce RTX 3070 Ti/PCIe/SSE2 (X11)
• OpenGL ES version: OpenGL ES 3.2 NVIDIA 550.163.01 (X11)
• OpenGL ES shading language version: OpenGL ES GLSL ES 3.20 (X11)
• GL_EXT_framebuffer_blit: yes (X11)
• GL_EXT_texture_format_BGRA8888: yes (X11)
[!] Android Studio (not installed) [13ms]
• Android Studio not found; download from https://developer.android.com/studio/index.html
(or visit https://flutter.dev/to/linux-android-setup for detailed instructions).
[✓] VS Code (version unknown) [13ms]
• VS Code at /usr/share/code
• Flutter extension version 3.116.0
✗ Unable to determine VS Code version.
[✓] Connected device (2 available) [78ms]
• Linux (desktop) • linux • linux-x64 • Linux Mint 22.1 6.8.0-71-generic
• Chrome (web) • chrome • web-javascript • Google Chrome 138.0.7204.183
[✓] Network resources [642ms]
• All expected network resources are available.
! Doctor found issues in 2 categories.
=== System Info ===
Linux haken-computer 6.8.0-71-generic #71-Ubuntu SMP PREEMPT_DYNAMIC Tue Jul 22 16:52:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
=== GPU Info ===
09:00.0 VGA compatible controller: NVIDIA Corporation GA104 [GeForce RTX 3070 Ti] (rev a1)
09:00.1 Audio device: NVIDIA Corporation GA104 High Definition Audio Controller (rev a1)
Fri Aug 15 11:29:04 2025
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 550.163.01 Driver Version: 550.163.01 CUDA Version: 12.4 |
|-----------------------------------------+------------------------+----------------------+
| 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 NVIDIA GeForce RTX 3070 Ti Off | 00000000:09:00.0 On | N/A |
| 0% 53C P0 38W / 310W | 489MiB / 8192MiB | 5% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+
+-----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 1706 G /usr/lib/xorg/Xorg 180MiB |
| 0 N/A N/A 2311 G cinnamon 40MiB |
| 0 N/A N/A 2859 G /usr/lib/firefox/firefox 200MiB |
| 0 N/A N/A 25166 G /usr/share/code/code 52MiB |
+-----------------------------------------------------------------------------------------+
=== OpenGL Info ===
name of display: :0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
GLX_ARB_context_flush_control, GLX_ARB_create_context,
GLX_ARB_create_context_no_error, GLX_ARB_create_context_profile,
GLX_ARB_create_context_robustness, GLX_ARB_fbconfig_float,
GLX_ARB_multisample, GLX_EXT_buffer_age,
GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_framebuffer_sRGB, GLX_EXT_import_context, GLX_EXT_libglvnd,
GLX_EXT_stereo_tree, GLX_EXT_swap_control, GLX_EXT_swap_control_tear,
GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_NV_copy_image, GLX_NV_delay_before_swap, GLX_NV_float_buffer,
GLX_NV_multigpu_context, GLX_NV_robustness_video_memory_purge,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGI_swap_control,
GLX_SGI_video_sync
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
=== Environment ===
Desktop: X-Cinnamon
Session: x11
My repository:
https://gitlab.com/supermag-group/supermorse-app/-/tree/supermorse_flutter?ref_type=heads
Expected results
Expected it to run and show a working app window.
Actual results
The app displays a black screen. I have tried multiple different methods to fix this, with no luck.
That is why I suspect that it is a bug.
Code sample
Screenshots or Video
No response