[SOLVED] Sample GLAppQt does not work on Linux

[i.zavyalov]

I want to try GLAppQt, it compiles without error, but when I start it, he show me error window with message:

GLAppQt::create_context(): glXMakeCurrent(): failed

Engine::video_restart(): can't set 1024x768 windowed video mode

 

With Unigine app I have no problem, it's work fine.

 

Uningine log:

 

~/Downloads/UnigineSDK-source-2012-09-07/source/samples/App/GLAppQt$ ./main.py

X Error: BadWindow (invalid Window parameter) 3

Major opcode: 31 (X_GrabKeyboard)

Resource id: 0x0

Loading "/home/ziv/Downloads/UnigineSDK-source-2012-09-07/source/samples/App/GLAppQt/../../../../data/demos/sanctuary/unigine.cfg"...

Loading "libGL.so.1"...

Loading "libopenal.so.1"...

Set 1024x768 windowed video mode

------------- 0x8cc9cd8

X Error: BadMatch (invalid parameter attributes) 8

Extension: 135 (Uknown extension)

Minor opcode: 5 (Unknown request)

Resource id: 0x4a0000d

GLAppQt::create_context(): glXMakeCurrent(): failed

Engine::video_restart(): can't set 1024x768 windowed video mode

Set 1280x720 windowed video mode

------------- 0x8b3ebd0

X Error: BadMatch (invalid parameter attributes) 8

Extension: 135 (Uknown extension)

Minor opcode: 5 (Unknown request)

Resource id: 0x4a0000d

GLAppQt::create_context(): glXMakeCurrent(): failed

 

Unigine fatal error

GLAppQt::create_context(): glXMakeCurrent(): failed

Engine::video_restart(): can't set 1280x720 windowed video mode

Shutdown

 

Thanks.

[manguste]

OpenGL cannot be initialized under Qt for some reason. What do you use:

1. Linux distributive
   
2. Qt version
   
3. Driver + video card?
   

[i.zavyalov]

1. Ubuntu 12.04

2. Qt 4.8.1

3. GeForce GTX 560 Ti, version 295.40

[frustum]

This is a previous implementation of GLAppQt.

GLAppQt.zip

[christophe.meurice]

Still the same ...

Using :

 

- UnigineSDK_source_2013-04-30_linux

- Using Qt version 4.8.3 in /usr/lib/i386-linux-gnu

- Linux alderaan 3.5.0-27-generic #46-Ubuntu SMP Mon Mar 25 20:00:05 UTC 2013 i686 i686 i686 GNU/Linux

- Ubuntu 12.10

- Nvidia binary : 310.40 (GeForce GTX 460M)

 

 

 

16:01:34 Loading "/opt/UnigineSDK_source_2013-04-30_linux/bin/../data/demos/crypt/unigine.cfg"...

16:01:34 Loading "libInterface_x86d.so"...

16:01:34 Loading "libGL.so.1"...

16:01:34 Set 1280x720 windowed video mode

16:01:34 GLAppQt::create_context(): glXMakeCurrent(): failed

16:01:34 Engine::video_restart(): can't set 1280x720 windowed video mode

16:01:41 Set 1280x720 windowed video mode

16:01:41 GLAppQt::create_context(): glXMakeCurrent(): failed

16:01:41 Engine::video_restart(): can't set 1280x720 windowed video mode

16:01:41 Shutdown

 

I've tested GLAppQt.zip but doesn't compile

 

Thanks

[christophe.meurice]

No idea ?

We need the Qt integration for our project 

[frustum]

Please try the default Qt OpenGL widget.

[christophe.meurice]

Changes made :

----------------------

 

.h : class AppQt : public QGLWidget, public Unigine::App {

.cpp : AppQt::AppQt(QWidget *parent,Qt::WindowFlags flags) : QGLWidget(parent,0,flags) {

 

 

Console output :

----------------------

 

christophe@alderaan:/opt/UnigineSDK_source_2013-04-30_linux/bin$ ./main -engine_config ../data/demos/crypt/unigine.cfg

Loading "/opt/UnigineSDK_source_2013-04-30_linux/bin/../data/demos/crypt/unigine.cfg"...

Loading "libInterface_x86d.so"...

Loading "libGL.so.1"...

Set 1280x720 windowed video mode

X Error: BadMatch (invalid parameter attributes) 8

  Extension:    153 (Uknown extension)

  Minor opcode: 5 (Unknown request)

  Resource id:  0x4a0000b

GLAppQt::create_context(): glXMakeCurrent(): failed

Engine::video_restart(): can't set 1280x720 windowed video mode

Set 1280x720 windowed video mode

X Error: BadMatch (invalid parameter attributes) 8

  Extension:    153 (Uknown extension)

  Minor opcode: 5 (Unknown request)

  Resource id:  0x4a0000b

GLAppQt::create_context(): glXMakeCurrent(): failed

 

Unigine fatal error

GLAppQt::create_context(): glXMakeCurrent(): failed

Engine::video_restart(): can't set 1280x720 windowed video mode

Shutdown

 

 

Debug :

----------------------

 

It crash on GLAppQt.cpp on line : if(glXMakeCurrent(display,window,context) == 0) {...

 

 

 

Thanks

 

 

[ulf.schroeter]

Have you tried other resolution, other driver version, other PC with different GPU for testing if the crash might be caused by the driver/hardware ?

[christophe.meurice]

Running the same demo (or any other Unigine application) outside of Qt is working very well.

Don't think it's hw related ...

[silent]

Hi,

 

I've tried to build GLAppQt sample with qt designer 2.7 + QT SDK 4.8.4 and it worked (but I've used Ubuntu 13.04 instead of 12.04). Steps for reproduction:

1. sudo aptitude install libqt4-core libqt4-dev libqt4-gui libqt4-qt3support libqt4-sql qt4-designer qt4-dev-tools qt4-doc qt4-qtconfig
2. sudo apt-get install ccache
3. sudo apt-get install cmake
4. sudo apt-get install qtcreator
5. Launch the qtcreator;
6. Open build settings:
   
   Tools -> Options -> Build & Run -> Qt Versions
    
7. Select the QT 5.0.1 in PATH (System)...
8. Press Browse button near the field qmake location:;
9. Select the qmake-qt4 in opened window (the path should be /usr/bin/qmake-qt4)
10. Press OK button to save the changes;
11. Open the main.pro from <SDK>/samples/App/GLAppQt in qtcreator;
12. Press Configure project button
13. Modify the main.pro file in the unix section to get the following content:
    
    unix {
    ​   DEFINES += _LINUX
       LIBS += -L$$PWD/../../../../lib/
       LIBS += -lX11
       LIBS += -lUnigine_x86d
       LIBS += -lGL
    }
     
14. After that press Ctrl+Shift+B to build the application; 
15. You will get compiled main in the configured output dir (in my case this is <SDK>/samples/App/build-main-Desktop-Debug directory);
16. Copy main to <SDK>/samples/App/GLAppQt;
17. Replace main.py with the attached file (unzip first);
18. Launch main.py.

Thanks!

main_py.zip

[frustum]

This is a patched version for Linux. There is no problem with context creation.

GLAppQt.zip

[christophe.meurice]

Fixed !!!

 

An other problem is that the Interface plugin of the crypt demo is crashing (I had to remove it to make the example run with this demo) and  a co-worker told me that in windows it's also crashing but not each time.

 

Thanks for the fix