unspecified launch failure in function caller

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Hi everyone,

running this code:

gpu::GpuMat cv_imgLeft_gpu;
gpu::GpuMat cv_imgLeft_gpu_blur;
Size filter_size;
filter_size.width = 7;
filter_size.height = 7;

// create filter
cv::Ptr<gpu::FilterEngine_GPU> filter = gpu::createGaussianFilter_GPU(CV_16SC1, filter_size, gauss_sigma);
while() {
// get image, function is from camera supplier, image is stored in pointer ptrGrabResultLeft
CameraLeft.RetrieveResult(5000, ptrGrabResultLeft, TimeoutHandling_ThrowException);
// constructor for GpuMatrix headers pointing to user-allocated data, load image to GPU memory
cv_imgLeft_gpu = gpu::GpuMat(ptrGrabResultLeft -> GetHeight(), ptrGrabResultLeft -> GetWidth(), CV_16SC1,  (uint32_t*)imageLeft.GetBuffer());
// apply filter
filter->apply(cv_imgLeft_gpu, cv_imgLeft_gpu_blur, cv::Rect(0, 0, cv_imgLeft_gpu.cols, cv_imgLeft_gpu.rows));
}

produces this error output in my terminal:

OpenCV Error: Gpu API call (unspecified launch failure) in caller, file /hdd/buildbot/slave_jetson_tx_4/35-O4T-L4T-R24-armhf/opencv/modules/gpu/src/cuda/row_filter.h, line 174 terminate called after throwing an instance of 'cv::Exception' what(): /hdd/buildbot/slave_jetson_tx_4/35-O4T-L4T-R24-armhf/opencv/modules/gpu/src/cuda/row_filter.h:174: error: (-217) unspecified launch failure in function caller

I am using an TX1 with OpenCV for Tegra 2.4.13. The camera takes 12 bit images within a 16 bit mask. However, if I load the image fo cv Mat format and convert it to gpu Mat, it works fine. But the time to convert the image is to long, I want to avoid that.

Thanks for your help.

Best ManuKlause