Jake Lo

Ok, I see you have 5 sec timeout. So you're not seeing the Windows icon, but only the Mac icon? Try launching Chameleon Wizard, under Install Tab. Check the Install Method and change it to match your setup and hit Install. i.e. Boot0hfs for OS X and Windows

Yes, sound is important, but the patched AppleHDA from the link is for my E7440 (ALC292). The OP already have the AppleHDA patched for your model ALC283. Did you repair cache and permission after replacing the files? sudo touch /S*/L*/E* sudo kextcache -Boot -U /

Are you using myHack? Do you have Chameleon org.chameleon.boot.plist in /Extra set to time out or quiet boot?

Here you go. Install to SLE with Kextwizard. These should be working with this kext.: Internal speaker Headphone Mic AppleHDAALC.kext.zip

install the kexts from here and here to SLE with kextwizard leave out AppleHDA, not needed for your model

What bootpack were you using? Clover or Chameleon? Try the DSDT from my T410s bootpack for Mavericks. Link is in my signature.

attach your config and DSDT file.

Does this have 1st Generation HD graphics or Nvidia?

If 10.10.0. then don't use the 10.10.2 files. 10.10 files are here Latitude_E7x40.zip 6.31MB 256 downloads

I'm assuming you're installing 10.10.2? Go here, install these to /System/Library/Extensions with kextwizard. HD4400:4600_Fix.zip and AppleIntelHD5000Graphics and AppleIntelFramebufferAzul.kext from this E7x40.zip 2.22MB 60 downloads

List system's full specs, extract a raw DSDT and attach it here.

Yes, the AppleHDA clover patching is needed if you use AppleALC. Does the headphones work for you? If not, I'll upload the version I'm using.

Remove the salamaahm's patch and remove IntelGFX = 0x04128086 to FakeID and add install the kexts from here and here to SLE. Just tested on Clover with Yosemite 10.10.2

Try this. Bootpack on post #2

ister, Install this to SLE. Remove the salamaahm's patch and add IntelGFX = 0x04128086 to FakeID, ig-plaform-id = 0x0a260006 to Graphics. Restore original/unpatched Azul and 5000Kext to SLE. run from terminal sudo touch /S*/L*/E* sudo kextcache -Boot -U / then reboot, report your result

When you boot to Yosemite, add flag -v so you see where the hanging problem resides. Post error here. For now, boot to your Yosemite partition /system/library/extensions and remove myHack.kext. Then run sudo touch /S*/L*/E* sudo kextcache -Boot -U / then reboot. Don't run myHack to your Yosemite partition, it's not supported.

Send me your Config file

The 2 kexts from my guide are patched so you don't need the patch for Clover. Remove the Clover patchs mentioned by salamaahm.

Known issue for HD 4600 on Yosemite

Does HDMI display work after boot?

Delete the file I mentioned previously.

Could be a caching problem. Try booting with just -f once booted, run myHack.app/myfix (quick)

A simple search from google would have gotten you here http://wizards.osxla...t/download.html Try Herve's advice in post #36 When you see the Mavericks icon, look below to see if any flags are shown, if so, remove it. If not, try removing FileNVRAM...random number from /Extra

check org.chameleon.boot.plist to see if the flags are there, remove if it's there. For audio, make sure you got the latest version of the kext from the updates below the guide. You must install it to /System/Library/Extensions to work. Use kextwizard.

What did you use to get to step 5? Here's the patched DSDT DSDT.aml.zip