Multiscreen OpenCV goes to one screen if unplugging HDMI or DP
Have an issue where a multiscreen OpenCV program does not stay in multiscreen mode after unplugging a DP or HDMI cable. It just goes to one screen after re-plugging in DP or HDMI.
I have set windows with:
//![create_window]
namedWindow(window_name, WINDOW_NORMAL);
cvSetWindowProperty(window_name, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
//![create_window]
//![create_window]
namedWindow(window_name2, NORMAL);
cvSetWindowProperty(window_name2, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
I see this error when I re-plug the DP or HDMI in the terminal I launched the OpenCV program from:
0x7f708c813c70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x7f708c72feb0) ): Attempt to set a screen on a child window.
QXcbConnection: XCB error: 148 (Unknown), sequence: 1391, resource id: 0, major code: 140 (Unknown), minor code: 20
Any thoughts on how to fix?
Thanks
opencv ubuntu ubuntu-16.04 nvidia
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
add a comment |
Have an issue where a multiscreen OpenCV program does not stay in multiscreen mode after unplugging a DP or HDMI cable. It just goes to one screen after re-plugging in DP or HDMI.
I have set windows with:
//![create_window]
namedWindow(window_name, WINDOW_NORMAL);
cvSetWindowProperty(window_name, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
//![create_window]
//![create_window]
namedWindow(window_name2, NORMAL);
cvSetWindowProperty(window_name2, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
I see this error when I re-plug the DP or HDMI in the terminal I launched the OpenCV program from:
0x7f708c813c70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x7f708c72feb0) ): Attempt to set a screen on a child window.
QXcbConnection: XCB error: 148 (Unknown), sequence: 1391, resource id: 0, major code: 140 (Unknown), minor code: 20
Any thoughts on how to fix?
Thanks
opencv ubuntu ubuntu-16.04 nvidia
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
add a comment |
Have an issue where a multiscreen OpenCV program does not stay in multiscreen mode after unplugging a DP or HDMI cable. It just goes to one screen after re-plugging in DP or HDMI.
I have set windows with:
//![create_window]
namedWindow(window_name, WINDOW_NORMAL);
cvSetWindowProperty(window_name, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
//![create_window]
//![create_window]
namedWindow(window_name2, NORMAL);
cvSetWindowProperty(window_name2, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
I see this error when I re-plug the DP or HDMI in the terminal I launched the OpenCV program from:
0x7f708c813c70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x7f708c72feb0) ): Attempt to set a screen on a child window.
QXcbConnection: XCB error: 148 (Unknown), sequence: 1391, resource id: 0, major code: 140 (Unknown), minor code: 20
Any thoughts on how to fix?
Thanks
opencv ubuntu ubuntu-16.04 nvidia
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
Have an issue where a multiscreen OpenCV program does not stay in multiscreen mode after unplugging a DP or HDMI cable. It just goes to one screen after re-plugging in DP or HDMI.
I have set windows with:
//![create_window]
namedWindow(window_name, WINDOW_NORMAL);
cvSetWindowProperty(window_name, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
//![create_window]
//![create_window]
namedWindow(window_name2, NORMAL);
cvSetWindowProperty(window_name2, CV_WND_PROP_FULLSCREEN, CV_WINDOW_FULLSCREEN);
I see this error when I re-plug the DP or HDMI in the terminal I launched the OpenCV program from:
0x7f708c813c70 void QWindowPrivate::setTopLevelScreen(QScreen*, bool) ( QScreen(0x7f708c72feb0) ): Attempt to set a screen on a child window.
QXcbConnection: XCB error: 148 (Unknown), sequence: 1391, resource id: 0, major code: 140 (Unknown), minor code: 20
Any thoughts on how to fix?
Thanks
opencv ubuntu ubuntu-16.04 nvidia
opencv ubuntu ubuntu-16.04 nvidia
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
asked Nov 12 '18 at 23:43
Mr OpenCVMr OpenCV
265
265
add a comment |
add a comment |
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