Patched your DSDT with dualLink. Rename your DSDT to dsdt.aml.old and rename this as DSDT.aml in /Extra. Maybe change you Graphics Mode to your new resolution as well.
DSDT-duallink.aml.zip
Yes, please report back regarding the headphones. The biggest hurdle I have with ALC292 is the headphone getting white noise on my E7440. Both patched AppleHDA and VoodooHDA are having this issue, even the latest voodoohda 2.8.5.
Actually your model is more like an E6330 but with a slightly larger chassis, downgrade your BIOS to A11, A12 causes artifacts on that model. Since you don't have Windows on this system, use a dos bootable disk.
He meant motherboard.
If you're having artifacts issue, make sure to you DON'T have BIOS version A13. Downgrade to A12 should fix it. If it's something else, please be specific of your issue.
Delete these files in S/L/E, run my fix (quick)
AppleIntelHDGraphics.kext
AppleIntelHDGraphicsFB.kext
AppleIntelHDGraphicsGA.plugin
AppleIntelHDGraphicsGLDriver.bundle
AppleIntelHDGraphicsVADriver.bundle
This guy got it to work with Clover. I'll need to try it on my Optiplex 9020 with HD 4600 as it's having the same issue after upgrading to 10.9.2. Worked fine with 10.9.1
1. Windows 7 sp1 64bit can be install on GUID partition
2. Like my E6230, BIOS A12 causes artifacts. Downgrade to A11 as in Darvinko's guide.
3. You can get a DW1510 for less than $20 in Ebay.
What value did you use for IntelAzulFB or you just use the DSDT?
Can you check to see if AppleIntelFramebufferAzul & AppleIntelHD5000Graphics are loaded now that you can boot in normal mode?
run kextstat -l from the terminal
are you seeing the adapter under wireless in system profiler?
if so, in Network preference, click the + sign to add new network and in the interface, click wifi
You still didn't say what the issue is. Is it not detecting your card, device not showing in network preference or just not able to connect to a wireless network?