macbook 15 自动重启，一天十几次；显示花屏；死机；显卡问题

重启后提示消息中包含 GPUPanic.cpp:127

google了一下，可能是显卡的问题，macbook 15 2010年版本，机器里面有两个显卡，一个是integrated Intel显卡，一个是NVIDA显卡，mac os在切换显卡的过程中可能产生保护性重启。

解决办法（呆这两天的测试验证）：下载安装第三方软件gfxCardStatus，选择Integrated Only。

参考：

Yeah, it is a known problem with the Snow Leopard kernel and the Lion kernel. The code which switches between GPUs is buggy. My temporary solution was to the disable automatic graphics card switching in the Energy Saver preferences. This helps, but this activates the AMD GPU on my Early-2011 Quad-Core i7 17" MBP, even if i do not need it (90 percent of the time). So i looked for another solution, and found gfxCardStatus (based on a MacRumors project, IIRC). gfxCardStatus is just an application (no kernel extensions) which communicates with the kernel via userspace (vs. kernelspace) IOKit calls. I've activated the Intel HD 3000 IGP, and the sudden logouts do no longer happen.

http://forums.macrumors.com/showthread.php?p=13322234#post13322234

gfxCardStatus国内下载 （2015.05 链接有效）