ubuntu技巧

##virtualbox使用独立显卡 技巧出自ubuntuform [sudo] optirun virtualbox --startvm xxx

查看

sudo lspci | grep -i vga
02:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 730M] (rev a1)
若是最后不是ff，而是a1或其余，说明独立显卡运行

virtualbox命令行

##字体错误解决 命令行运行时显示和字体有关的错误，以下

Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 90: Having multiple <family> in <alias> isn't supported and may not work as expected

说明alias里包含太多个family了
把他们拆出来便可

原来的样子
    <alias>
	<family>Segoe UI</family>
	<family>Calibri</family>
	<family>Candara</family>
    </alias>

    拆完后
    <alias>
	<family>Segoe UI</family>
    </alias>
    <alias>
	<family>Calibri</family>
    </alias>
    <alias>
	<family>Candara</family>
    </alias>