To exofes,
I appreciate your attempt to add solidity to the Gfxcardstatus tool with your swithGPU tool and I appreciate your apology.
However, I do not appreciate the fact you released this product with a now known bug nor do I appreciate your attitude that it's not possible for your switchGPU to introduce further problems into our already severely crippled and fragile mbp's. Because it did. Your switchGPU tool somehow crippled Gfxcardstatus so that it went back to discrete and I could no longer enagle integrated. Until installing your POS switchGPU tool, the Gfscardstatus tool has always worked as originally intended.
Last night and today I spent 3 hours trying to get into a bootable state and for the first time ever I thought my mbp was completely done for because the bug you introduced crippled the Gfxcardstatus tool so that it could no longer switch from discrete to integrated.
Once I was able to eventually get a login prompt, I removed your POS switchGPU tool and the Gfxcardstatus tool, I then reinstalled the Gfxcardstatus tool and was then able to switch it back to "integrated".
Furthermore, I do not appreciate your presumption that my mbp is continually "getting worse" just as yours is. Although your guess could be correct, my mbp has already gone through all those failing stages and about a month ago I was able to return to a stable albeit limited and fragile state. That is until I installed your POS switchGPU tool last night.
It's an imperfect world, as Apple has demonstrated with the 2011 mbp's, leaving many of us hanging by a thread off a very big cliff. But your switchGPU with its bug was the equivalent of throwing me a 30 lbs. cinder block, when I'm already hanging by a thread.
I appreciate your failed attempt to add stability to this very delicate situation and ultimately I blame only myself for taking further risk with my now fragile-as-an-egg and crippled mbp.
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On another note for others.
As I tried to get back to a stable state today, I tried to pay attention to the various steps and PRAM and SMC resets, etc that eventually cause the OS to reboot with graphics control reset to point at the integrated rather than the discrete chip.
I did reset the PRAM and SMC several times but to no avail.
I tried using the CMD + r key combo at reboot to initiate an internet recovery but to no avail.
I then tried the Option + CMD + r key combo at reboot and it too failed but the very next reboot brought me a login prompt and enough stability to immediately remove the swithGPU and then reinstall the Gfxcardstatus tool and then I was able to set the Gfxcardstatus tool integrated.
As I recall, the Option + CMD + r key combo at boot had worked once before so maybe this is the combo that points the OS back to the integrated chip.