Rendering in FBO fails with NVIDIA Base Profile on GL 4.6 (Quadro RTX6000)

Environment:

• OS: Windows
• GPU: NVIDIA Quadro RTX6000
• Driver Version: 572.83
• openFrameworks Version: 0.12
• GL Version: 4.6 (via settings.glVersionMajor = 4, settings.glVersionMinor = 6)
• NVIDIA Control Panel Profile: Base Profile (issue present), 3D App – Video Editing (no issue)

Issue:

When using OpenGL 4.6 in an openFrameworks app on a system with an NVIDIA Quadro RTX6000, rendering to an ofFbo fails when the Base Profile is selected in the NVIDIA Control Panel.

Using the default GL version does not show the issue.

Observed behavior:

The first frame appears to render correctly.

Subsequent frames do not update (i.e., the FBO appears frozen or never refreshed).

This issue affects all standard draw calls to the FBO, including:

ofDrawLine
ofDrawRectRounded

Changing the FBO settings (e.g. internal format) has no effect.

Workaround:

Switching the NVIDIA Control Panel profile to 3D App – Video Editing resolves the issue completely. This was previously only recommended for performance but now appears necessary for functionality in this configuration.

Minimal Example:

void ofApp::setup() {
    fbo.allocate(ofGetWidth(), ofGetHeight(), GL_RGBA);
}

void ofApp::update() {
    fbo.begin();
    ofClear(0, 0, 0, 0);
    ofSetColor(255, 0, 0);
    ofDrawLine(100, 100, mouseX, 100);
    ofSetColor(0, 255, 0);
    ofDrawRectRounded(100, 150, 200, 100, 20);
    ofSetColor(255);
    ofDrawBitmapString("Move your mouse!", 100, 50);
    fbo.end();
}

void ofApp::draw() {
    ofBackground(20);
    fbo.draw(0, 0);
}

// main.cpp
int main() {
    ofGLWindowSettings settings;
    settings.setSize(1024, 768);
    settings.glVersionMajor = 4;
    settings.glVersionMinor = 6;
    settings.windowMode = OF_WINDOW;
    auto window = ofCreateWindow(settings);
    ofRunApp(window, make_shared<ofApp>());
    ofRunMainLoop();
}

Start with the minimal example in main.cpp and the ofApp setup, update, and draw methods, then reproduce it with OpenGL 4.6 and the NVIDIA Base Profile. Compare FBO updates against the 3D App – Video Editing profile and the default GL version, focusing on the ofFbo begin/end and draw path. Done means identifying a reproducible framework-side cause and verifying that the FBO refreshes across frames without changing the driver profile.