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0xbb / gpu-switch

gpu-switch is an application that allows to switch between the graphic cards of dual-GPU Macbook Pro models
MIT License
543 stars 58 forks source link

Broken since I updated to OS X 10.12.4 #37

Closed soundg33k closed 7 years ago

soundg33k commented 7 years ago

MacBook Pro 11.5 OS X 10.12.4

I ran "gpu-switch -i" on my ubuntu partition and ended up with having to reset the nvram on my MacBook, otherwise any OS trying to use the discrete gpu would hang.

I have done it twice... because the first time I was not sure it was the cause. It use to be working before the update to OS X 10.12.4

robertdoleson commented 7 years ago

MacBook Pro 11.3 OS X 10.12.4

I am also experiencing this same problem. gpu-switch with Windows worked fine before updating to 10.12.4.

0xbb commented 7 years ago

Thanks for your reports. It's going to be problematic to fix this issue, because I don't have access to any MacBook anymore.

robertdoleson commented 7 years ago

For me, it ended up being an issue with apple_set_os.efi.

https://egpu.io/forums/mac-setup/how-to-keep-mbps-irisiris-pro-activated-when-booting-into-windows-boot-camp/

Working fine now.

soundg33k commented 7 years ago

Not sure if I trust the link in question... it would be nice if they could post the source code for their fix... or better fork the this github repo!

The executable they provide is 290kB and the one I compile is 4kB... no way I am installing that on my machine.

0xbb commented 7 years ago

Could you email me their binary? I am sure that I can quickly extract the fix.

On April 12, 2017 4:30:14 AM GMT+02:00, soundg33k notifications@github.com wrote:

Not sure if I trust the link in question... it would be nice if they could post the source code for their fix... or better fork the this github repo!

The executable they provide is 290kB and the one I compile is 4kB... no way I am installing that on my machine.

soundg33k commented 7 years ago

I just sent the binary I downloaded from the thread by email to you.

I looked at the hexdump of the binary. The strings seems to be the same, so I don't know exactly what they done. I was hoping to find that they change the only change the following string "Mac OS X 10.9"... but it does not seems to be the case.

0xbb commented 7 years ago

This was caused by https://github.com/0xbb/apple_set_os.efi/issues/4 Thanks @soundg33k for helping me finding this bug and I published a fix there.

ah- commented 7 years ago

Nice!