A few weeks ago I noticed a problem with mouse movement on the hackintosh, where the cursor would jump across the screen as if pausing for a fraction of a second. This only happened when quicktime was active, for example when using iTunes or the Quicktime player. An initial workaround was found at PCwizcomputer and while this worked by replacing a quicktime file it wasn’t a perfect solution.
Browsing for a better fix last week I found the weaksauce12 blog, also at PCwizcomputer. This highlights a problem with AppleUpstreamuserclient.kext. The explanation is that this kernel extention is for DRM use with the Macintosh versions of Nvidia 9400 and 9600 GPU’s. Although I have a 9800GT this appeared to be causing the problem as removing this kext did the trick. Combining this fix with iTunes 8.1 has made music a much better experience on the hackintosh.
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Now that Apple has announced its use of the new chipset Nvidia adds the rest of the details.
Windows Vista SP2 will be available before Windows 7
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Interesting findings and unmentioned changes to Apple’s new laptop range.
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Design choices in the latest laptops indicate Apple’s future direction.
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