Created
October 18, 2017 20:32
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console.app output every time the screen pauses
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| fault 14:30:05.230227 -0600 kernel virtual IOReturn IOAccelEventMachine2::waitForStamp(int32_t, stamp_t, stamp_t *): initial wait for 1 second expired. Continue wait for 4 seconds. stamp 8060894 (gpu_stamp=8060893) | |
| fault 14:30:09.230120 -0600 kernel virtual IOReturn IOAccelEventMachine2::waitForStamp(int32_t, stamp_t, stamp_t *): timeout waiting for IntelAccelerator stamp 8060894 (gpu_stamp=8060893) | |
| fault 14:30:09.230137 -0600 kernel void IOAccelEventMachine2::handleFinishChannelRestart(IOReturn, int32_t, uint32_t) - Setting restart type to 4 | |
| fault 14:30:09.230141 -0600 kernel void IOAccelEventMachine2::handleFinishChannelRestart(IOReturn, int32_t, uint32_t): GPURestartDequeued stampIdx=4 type=4 fromWhere=1 waitingOnIdx=4 | |
| fault 14:30:09.230190 -0600 kernel void IOAccelEventMachine2::restart_channel(): GPURestartSkipped stampIdx=4 type=4 | |
| fault 14:30:09.230194 -0600 kernel void IOAccelEventMachine2::restart_channel(): no channel associated with stamp_idx 4 (type 4) |
Hey, same here, though a bit older MBP. And indeed running
kextunload -b org.virtualbox.kext.VBoxDrv -b org.virtualbox.kext.VBoxUSB -b org.virtualbox.kext.VBoxNetFlt -b org.virtualbox.kext.VBoxNetAdp
seems to help.
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I was having exactly the same problem, also on a Mid 2014, 13-inch, Retina MBP. (Also, see this Apple forums post.)
The only third-party kernel extensions loaded were the VirtualBox ones, duet, and AirParrot. As I was not currently using any of these programs on this machine, I uninstalled them all, and have not had the problem since. Although I didn't uninstall them one-by-one, I suspect it was VBox, as that's the commonality with the issue in the linked forum post.