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      Solution to create a topic or post.   04/24/2018

      Hello guys. The majority of you are having issues to create a topic or post here. This are a problem with our current theme InsanelyMac.  Now the theme will be the Default IPS. Sorry for any inconvenience.

Integrated graphics giving HPETs error on Thinkpad W520

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I have successfully set up 10.7.2 on my Thinkpad W520. There are two graphics chips I can choose in the BIOS, "Integrated" (Intel HD3000) or "Discrete" (Nvidia Quadro 1000M). Everything works great under the Discrete setting, but it won't boot with the Integrated setting. I'm using the latest Chimera bootloader. I get a Kernel panic about "No HPETs available." I have tried a DSDT patch but no luck. Any ideas? It would be good for battery life to be able to use integrated graphics.



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