I had previously noticed the Webex Application infact was switching to external gpu and thus causing the system to hung or now reboot in Yosemite.īut now atleast its not anymore doing this, once I have disabled the 2nd GPU. It was coming back everytime.īut the disadvantage was everytime it was switching gpu during normal use it was crashing the laptop and rebooting. So no more recovery mode boot or single user or pram resets or SMC. Now when the system panics- Apple has made some changes in 6770m gpu drivers that is forcing the CPU to reinitialize or reboot the GPU - so now when system reboots it comes back safely.
I have noticed in Energy Saver "Automatic switching check box was removed now".Also My external video 6770m card is completely disabled as to test I have tried the game which previously was always going to 2nd gpu but now only using integrated GPU.Īlso before doing all this I have updated to Yosemite. Thank you all I have used the linked procedure - Īlthough while rebuilding the drivers cache it has given me down the line "segmentation fault" but when it booted:
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