Biso007 Posted March 29, 2017 Share Posted March 29, 2017 Hello to all, After installing 10.12.4 the system broke. I noticed it is passing the graphic mode switch then hangs. On verbose mode there is a message before going into blank screen: "time out .. kexted ACPICPU". Is there any change in ACPIPM kexts in this upgrade ?? P.S I installed NullCPUPM kext but it doesn't solve the problem. Any help\guidance is appreciated. TIA Link to comment Share on other sites More sharing options...
gengik84 Posted March 29, 2017 Share Posted March 29, 2017 Update clover 1 Link to comment Share on other sites More sharing options...
Mac Hosehead Posted March 29, 2017 Share Posted March 29, 2017 This was happening to me as well. Make sure you have FakeSMC installed in S/L/E before the update. Thanks to @cuthead for the clue-in. http://www.insanelymac.com/forum/topic/315577-timeout-kextd-appleacpicpu-error-and-black-screen/ Link to comment Share on other sites More sharing options...
y010204025 Posted April 4, 2017 Share Posted April 4, 2017 Please update clover,Many people upgrade solved the problem Link to comment Share on other sites More sharing options...
misterphoton Posted April 25, 2017 Share Posted April 25, 2017 Can anyone tell me if they have successfully installed Sierra on an Elitebook 8560p? I have the Radeon card and have problems with the GPU acceleration, as well USB 3.0 not working? Thank, and I hope that this is not irrelevant. I am still in the bug fixing stages of the install before the update. But I was able to get USB 3.0 working somewhat, thanks to rehab man. I am still trying out to resolve the GPU before updating to v4 of Sierra. I guess they all have similar hardware, and I wanted to see if anyone is in the same boat. I would be happy to discuss any install steps on my completion. Nick, Mister Photon Link to comment Share on other sites More sharing options...
Biso007 Posted April 26, 2017 Author Share Posted April 26, 2017 Hi ... It's not the same HW. The 840 has the integrated HD4400 which has 2 kexts to support. You must find the required drivers for your GPU. Link to comment Share on other sites More sharing options...
Recommended Posts