c++ - 执行 OpenGL 程序时出现 libGL 错误

Question

当我尝试执行我的程序时出现此错误:

libGL error: unable to load driver: i965_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: i965
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request:  GLXBadFBConfig
  Major opcode of failed request:  154 (GLX)
  Minor opcode of failed request:  34 ()
  Serial number of failed request:  42
  Current serial number in output stream:  41

我的代码(我从《OpenGL Development Cookbook》一书中拿来的):

#include <GL/glew.h>
#include <GL/freeglut.h>
#include <iostream>

const int WIDTH = 640;
const int HEIGHT = 480;

void OnInit()
{
   glClearColor(1, 0, 0, 0);
   std::cout << "Initialization successfull" << std::endl;
}

void OnShutdown()
{
   std::cout << "Shutdown successfull" << std::endl;
}

void OnResize(int nw, int nh)
{

}

void OnRender()
{
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
   glutSwapBuffers();
}

int main(int argc, char** argv)
{
   glutInit(&argc, argv);
   glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
   glutInitContextVersion(3, 3);
   glutInitContextFlags(GLUT_CORE_PROFILE | GLUT_DEBUG);
   glutInitContextProfile(GLUT_FORWARD_COMPATIBLE);
   glutInitWindowSize(WIDTH, HEIGHT);
   glutCreateWindow("OpenGL");

   glewExperimental = GL_TRUE;
   GLenum err = glewInit();

   if(GLEW_OK != err) {std::cerr << "Error: " << glewGetErrorString(err) << std::endl; }
   else{if(GLEW_VERSION_3_3) {std::cout << "Driver supports OpenGL 3.3\n Details: " << std::endl; }}

   std::cout << "\tUsing glew: " << glewGetString(GLEW_VERSION) << std::endl;
   std::cout << "\tVendor: " << glGetString(GL_VENDOR) << std::endl;
   std::cout << "\tRenderer: " << glGetString(GL_RENDERER) << std::endl;
   std::cout << "\tGLSL: " << glGetString(GL_SHADING_LANGUAGE_VERSION) << std::endl;

   OnInit();
   glutCloseFunc(OnShutdown);
   glutDisplayFunc(OnRender);
   glutReshapeFunc(OnResize);
   glutMainLoop();
   return 0;
}

我通过 glxinfo | 验证了我的驱动程序是否支持我使用的 OpenGL 版本。 grep "OpenGL" 命令:

OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile 
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.5.9
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.5.9
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:

我正在使用 Ubuntu 14.04.3。

我不确定，但我认为我收到此错误是因为我使用的是 intel 而不是 Nvidia。

Answer 1

从远处很难分辨，但您那里的错误看起来像是损坏的 OpenGL 客户端库安装。 glxinfo 查询加载到 Xorg 服务器中的 GLX 驱动程序，它在某种程度上独立于已安装的 libGL(只要只进行间接渲染调用)。错误表明安装的 libGL 与 DRI 驱动程序不匹配或 DRI 库已损坏。

无论哪种方式，最好的做法是在您的系统上彻底重新安装与 OpenGL 相关的所有内容。 IE。强制重新安装 xorg-server、xf86-video-…、mesa、libdri…等等。