namedWindow bug on Ubuntu 16.04 [closed]

edit

Hi,

I have just installed OpenCV from GitHub on Ubuntu 16.04 (Unity 7) and tried this basic program:

int main(int argc, char *argv[])
{
    if( argc != 2 ) {
        std::cerr << "Expecting 1 argument: /path/to/img" << std::endl;
        std::exit(EXIT_FAILURE);
    }

cv::Mat src { cv::imread(argv[1], CV_LOAD_IMAGE_COLOR) };
if( src.empty() ){
    std::cerr << "Error loading image: no data found" << std::endl;
    std::exit(EXIT_FAILURE);
}

cv::namedWindow("Example 1", CV_WINDOW_AUTOSIZE);
cv::imshow("Example 1", src);

cv::waitKey(0);
cv::destroyWindow("Example 1");
 
 
When I run the program, the window is "locked" on the upper left corner. I'm unable to grab it or do anything with it. There isn't even a close button.
Sometime, I also get the toolbar with the zoom/save/... options. I get a similar result with CV_WINDOW_FULLSCREEN (the window is actually not in full screen mode). The other parameters are fine.
 
I haven't found any report of this behavior but I suppose this is a bug. Has anyone encounter this issue too?
 
I can't post a screenshot because I'm new and my karma is too low for this... : (   Sorry...
 
EDIT: something went wrong with my post layout but I'm unable to fix it. Sorry again.
 
EDIT: here is the cmake output
 
 
-- Detected version of GNU GCC: 54 (504)
-- FP16: Feature disabled
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.8", minimum required is "1.2.3") 
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.8") 
-- Checking for module 'gstreamer-base-1.0'
--   No package 'gstreamer-base-1.0' found
-- Checking for module 'gstreamer-video-1.0'
--   No package 'gstreamer-video-1.0' found
-- Checking for module 'gstreamer-app-1.0'
--   No package 'gstreamer-app-1.0' found
-- Checking for module 'gstreamer-riff-1.0'
--   No package 'gstreamer-riff-1.0' found
-- Checking for module 'gstreamer-pbutils-1.0'
--   No package 'gstreamer-pbutils-1.0' found
-- Checking for module 'gstreamer-base-0.10'
--   No package 'gstreamer-base-0.10' found
-- Checking for module 'gstreamer-video-0.10'
--   No package 'gstreamer-video-0.10' found
-- Checking for module 'gstreamer-app-0.10'
--   No package 'gstreamer-app-0.10' found
-- Checking for module 'gstreamer-riff-0.10'
--   No package 'gstreamer-riff-0.10' found
-- Checking for module 'gstreamer-pbutils-0.10'
--   No package 'gstreamer-pbutils-0.10' found
-- Checking for module 'libdc1394-2'
--   No package 'libdc1394-2' found
-- Checking for module 'libdc1394'
--   No package 'libdc1394' found
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
-- Looking for linux/videodev2.h - found
-- Looking for sys/videoio.h
-- Looking for sys/videoio.h - not found
-- Checking for module 'libavresample'
--   No package 'libavresample' found
-- Checking for module 'libgphoto2'
--   No package 'libgphoto2' found
-- found IPP (ICV version): 9.0.1 [9.0.1]
-- at: /home/simon/opencv/release/3rdparty/ippicv/ippicv_lnx
-- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing:  Atlas_CBLAS_INCLUDE_DIR Atlas_CLAPACK_INCLUDE_DIR Atlas_CBLAS_LIBRARY Atlas_BLAS_LIBRARY Atlas_LAPACK_LIBRARY) 
-- A library with BLAS API not found. Please specify library location.
-- LAPACK requires BLAS
-- A library with LAPACK API not found. Please specify library location.
-- Could NOT find JNI (missing:  JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) 
 
-- VTK is not ...