使用 -platform eglfs 运行 Qt5 应用程序时 i.MX6 上的分段错误答案

【问题标题】：Segmentation fault on i.MX6 when running Qt5 application with -platform eglfs使用 -platform eglfs 运行 Qt5 应用程序时 i.MX6 上的分段错误
【发布时间】：2017-04-17 13:58:33
【问题描述】：

我正在尝试通过指定 eglfs 平台来运行不带 X 服务器的 hellogl_es2 Qt 示例：

> ./hellogl_es2 -platform eglfs
No protocol specified
Segmentation fault (core dumped)

CPU 是飞思卡尔 i.MX6。

Linux 内核是 3.10.17。

发行版是 Ubuntu 14.04.4 LTS（值得信赖）。

Qt 版本为 5.2.1，从http://packages.ubuntu.com、armhf 架构安装，包qtbase5-dev、qtbase5-examples、qtbase5-examples-dbg。

核心转储是（libGAL.so 中 gcoOS_InitLocalDisplayInfo 的问题）：

GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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Reading symbols from hellogl_es2...Reading symbols from /usr/lib/debug/.build-id/6f/8a8dfdb5abe920e37000a98092b4058b56da0a.debug...done.
done.
[New LWP 2802]
[New LWP 2803]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1".
Core was generated by `./hellogl_es2 -platform eglfs'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0xb5dd0c84 in gcoOS_InitLocalDisplayInfo () from /usr/lib/arm-linux-gnueabihf/vivante/libGAL.so
(gdb) bt
#0  0xb5dd0c84 in gcoOS_InitLocalDisplayInfo () from /usr/lib/arm-linux-gnueabihf/vivante/libGAL.so
#1  0xb5d095f8 in ?? () from /usr/lib/arm-linux-gnueabihf/libEGL.so.1
/build/buildd/gdb-7.7.1/gdb/frame.c:472: internal-error: get_frame_id: Assertion `fi->this_id.p' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.

行为与其他 Qt 示例项目相同。

当 X 服务器运行时，指定 xcb 平台（-platform xcb，即默认）工作正常。

【问题讨论】：

标签： linux qt qt5 egl imx6

【解决方案1】：

我设法解决了“分段错误”问题：

apt-get install gpu-viv-bin-mx6q-fb

（自动卸载gpu-viv-bin-mx6q-x11）。

但是，现在我有另一个问题："EGL Error : could not create the EGL surface: error 0x300b" on i.MX6 when running Qt5 application with -platform eglfs

【讨论】：