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Lenovo T440 - External Display issue 10.9.2


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Hi,

 

on my Lenovo T440 (HD 4400) i get a kernel panic when i try to connect to an external display using the mini display port on Mavericks 10.9.2 but it's working flawlessly on 10.9

 

Any advice on what's going on?

 

Do 10.9.2 handle external display connections differently from 10.9? 

 

Thanks

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I've replaced on 10.9.2 the following kext/bundles with the ones from 10.9 and now i have a fully working external display mirror using displayport:

AppleIntelFramebufferAzul.kext
AppleIntelHD5000Graphics.kext
AppleIntelHD5000GraphicsGLDriver.bundle
AppleIntelHD5000GraphicsVADriver.bundle

So something has been changed on 10.9.2 regarding these drivers and, at least on my laptop, they cause a kernel panic when connecting an external display.

It would be interesting to know if this issue is specific to my laptop or it's common across similar machines/video cards...

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  • 7 months later...
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