Preview crashes when using Web engine rendering

[artojarvinen]

I'm running ReText 8.0.2 on Ubuntu 24.04.3 LTS. I open a new document, leave it empty, click on preview, get a white window for a while and then ReText crashes. This is what the console says:

arto@Hal:~/Drive/Dev/cms/docs$ retext
Using configuration file: /home/arto/.config/ReText project/ReText.conf
WebEngineContext used before QtWebEngineCore::initialize() or OpenGL context creation failed.
QGLXContext: Failed to create dummy context
qt.webenginecontext:

GL Type: disabled
Surface Type: OpenGL
Surface Profile: NoProfile
Surface Version: 2.0
QSG RHI Backend: OpenGL
Using Supported QSG Backend: yes
Using Software Dynamic GL: no
Using Multithreaded OpenGL: no

Init Parameters:

• application-name ReText
• browser-subprocess-path /usr/lib/qt6/libexec/QtWebEngineProcess
• disable-features ConsolidatedMovementXY,InstalledApp,BackgroundFetch,WebOTP,WebPayments,WebUSB,PictureInPicture
• disable-gpu
• disable-setuid-sandbox
• disable-speech-api
• enable-features NetworkServiceInProcess,TracingServiceInProcess
• enable-threaded-compositing
• in-process-gpu
• use-gl disabled

QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QQuickWidget: Failed to get a QRhi from the top-level widget's window
QQuickWidget::resizeEvent() no QRhi
QRhiGles2: Failed to create temporary context
QRhiGles2: Failed to create context
Failed to create QRhi for QBackingStoreRhiSupport
QQuickWidget: Failed to get a QRhi from the top-level widget's window
Process Process-1:
Traceback (most recent call last):
File "/usr/lib/python3.12/multiprocessing/process.py", line 314, in _bootstrap
self.run()
File "/usr/lib/python3.12/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/usr/share/retext/ReText/converterprocess.py", line 72, in _converter_process_func
job = receiveObject(conn_child)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/share/retext/ReText/converterprocess.py", line 41, in receiveObject
sizeBuf = recvall(sock, 4)
^^^^^^^^^^^^^^^^
File "/usr/share/retext/ReText/converterprocess.py", line 34, in recvall
raise EOFError('Received 0 bytes from socket while more bytes were expected. Did the sender process exit unexpectedly?')
EOFError: Received 0 bytes from socket while more bytes were expected. Did the sender process exit unexpectedly?
Segmentation fault (core dumped)

If I can be of further assistance, please let me know. Thank you for your work!

[mitya57]

Hi!

WebEngineContext used before QtWebEngineCore::initialize() or OpenGL context creation failed.
QGLXContext: Failed to create dummy context

So there is some problem with OpenGL. Is there anything unusual about your hardware? What is the video card? Do Chromium-based browsers work for you?

Also, how did you install ReText: from Ubuntu repository, using pip, or some other way?

[artojarvinen]

Hi, Thanks for your reply! I am using an NVIDIA TITAN X (Pascal) with NVIDIA driver version 535.274.02. I installed it from the Ubuntu repository with apt. I use Chrome as my standard browser and it works perfectly. Let me know if you need any other more detailed system information. Cheers, Arto

On Wed, 2025-11-12 at 23:03 -0800, Dmitry Shachnev wrote: mitya57 left a comment (retext-project/retext#676) [1] Hi! > WebEngineContext used before QtWebEngineCore::initialize() or > OpenGL context creation failed. > QGLXContext: Failed to create dummy context So there is some problem with OpenGL. Is there anything unusual about your hardware? What is the video card? Do Chromium-based browsers work for you? Also, how did you install ReText: from Ubuntu repository, using pip, or some other way? — Reply to this email directly, view it on GitHub [1], or unsubscribe [2]. You are receiving this because you authored the thread.Message ID: ***@***.***>

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