1. 可選的環(huán)境變量，這將為您獲得更多的調(diào)試輸出：

export MESA_DEBUG=1

export EGL_LOG_LEVEL=debug

export LIBGL_DEBUG=verbose

export WAYLAND_DEBUG=1

2.? 運(yùn)行egl程序時(shí)，幀率不高，可以設(shè)置 vblank_mode=0 tells the graphic card to ignore the refresh rate of your monitor and just try to reach the maximux fps it's capable off.

You usually don't want this, because it causes tearing and wastes battery life without any benefits (you can't view more then, in your case, 60fps because your monitor isn't able to change what's displaying more than 60 times every second).

You might sometimes want this (in online shooters such as cs:go for example) because otherwise you will have a lot of input lag. It's a trade-off, input lag vs. screen tearing.

I think optirun sets vblank_mode=0 by default, so it doesn't change whether you specify it or not. primusrun doesn't and it too caps at 60 fps without vblank_mode=0.

3. 關(guān)于weston運(yùn)行時(shí)的一些環(huán)境變量

WAYLAND_SOCKET

WAYLAND_DISPLAY 默認(rèn)為wayland-0， wayland-1。

XDG_RUNTIME_DIR 默認(rèn)為/run/user/1000 上述socket文件wayland-0在此目錄下。