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Problem with some driver with OpenGL and nvidia
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Joined: 15 Feb 2017
Posts: 803

PostPosted: Tue Feb 25, 2020 11:32 am    Post subject: Problem with some driver with OpenGL and nvidia Reply with quote

Hello, today i work on my Qt project (web browser) to test webengine.Compilation and code are okay, but when run my code, i have problem with OpenGL render. I suspect problem to detect nvidia opengl driver, but i don't know how to solve this problem.

qt-creator use flags:

zohran@MSI-GS73VR-6RF ~ $ eix qt-creator
[I] dev-qt/qt-creator
     Available versions:  4.8.2^t (~)4.10.1^t **9999*l^t {android +autotest autotools baremetal bazaar beautifier boot2qt +clang clearcase cmake cppcheck ctfvisualizer cvs +designer doc git glsl +help ios lsp mcu mercurial modeling nim perforce perfprofiler python qbs +qmldesigner qmlprofiler qnx remotelinux scxml serialterminal silversearcher subversion systemd test valgrind webassembly +webengine winrt L10N="cs da de fr ja pl ru sl uk zh-CN zh-TW"}
     Installed versions:  4.10.1^t(16:01:30 14/02/2020)(android autotest clang designer git help ios qmldesigner silversearcher valgrind webengine -baremetal -bazaar -beautifier -clearcase -cmake -cppcheck -cvs -doc -glsl -lsp -mercurial -modeling -nim -perforce -perfprofiler -python -qbs -qmlprofiler -qnx -remotelinux -scxml -serialterminal -subversion -systemd -test -winrt L10N="fr -cs -da -de -ja -pl -ru -sl -uk -zh-CN -zh-TW")
     Description:         Lightweight IDE for C++/QML development centering around Qt

nvidia-drivers use flags:
zohran@MSI-GS73VR-6RF ~ $ eix nvidia-drivers
[I] x11-drivers/nvidia-drivers
     Available versions:  340.108(0/340)^mtd 390.132-r1(0/390)^mtd 430.64-r1(0/430)^mtd 435.21-r1(0/435)^mtd 440.59(0/440)^mtd {+X acpi compat +driver gtk3 +kms libglvnd multilib static-libs +tools uvm wayland ABI_MIPS="n32 n64 o32" ABI_RISCV="lp64 lp64d" ABI_S390="32 64" ABI_X86="32 64 x32" KERNEL="FreeBSD linux"}
     Installed versions:  440.59(0/440)^mtd(13:18:06 24/02/2020)(X acpi compat driver kms uvm -gtk3 -libglvnd -multilib -static-libs -tools -wayland ABI_MIPS="-n32 -n64 -o32" ABI_RISCV="-lp64 -lp64d" ABI_S390="-32 -64" ABI_X86="64 -32 -x32" KERNEL="linux -FreeBSD")
     Description:         NVIDIA Accelerated Graphics Driver
QT += \


#include <QApplication>
#include <QWebEngineView>

int main(int argc, char *argv[])
    QApplication application(argc, argv);
    QWebEngineView webview;
    return application.exec();


12:23:25: Starting /home/zohran/WebBrowser/WebBrowser ...
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
QGLXContext: Failed to create dummy context
WebEngineContext used before QtWebEngine::initialize() or OpenGL context creation failed.
Failed to create OpenGL context for format QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 24, redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1, stencilBufferSize 8, samples 0, swapBehavior QSurfaceFormat::DefaultSwapBehavior, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
12:23:26: Le programme s'est terminé subitement.
12:23:26: The process was ended forcefully.
12:23:27: /home/zohran/WebBrowser/WebBrowser crashed.

It's not the first time i have problem with OpenGL rendering with my nvidia graphic card. For information, my video card have optimus technology, and Xorg is configured to use only nvidia card.
It's strange, but when i run program without Qt IDE, program work ???
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Joined: 02 Jun 2012
Posts: 453

PostPosted: Fri Feb 28, 2020 7:45 am    Post subject: Reply with quote

I tried and got the same results, tried release/debug. ( I have qt-creator from bc I had some other problems with portage version )

Just use KDevelop, its works ok there.
Sent from Windows
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