okaenrique Posted March 5, 2015 Share Posted March 5, 2015 Hello no sound and wifi in my dell i used this guide https://osxlatitude.com/index.php?/topic/7478-dell-latitude-yosemite-install-guide/?hl=%2Be6220+%2Byosemite THanks Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 5, 2015 Moderators Share Posted March 5, 2015 Most Dell comes with Intel Wireless, they are not supported. You'll need to replace it. See my signature link below under Wireless Cards for supported cards. You can verify by running DPCIManager.app, google for it. Sound should work if you have installed it following the guide. Bootpack is in post #2. Patched AppleHDA is in /Extra/Extensions/SLE. All kexts in SLE must be installed to /System/Library/Extensions with kextwizard. Link to comment Share on other sites More sharing options...
okaenrique Posted March 5, 2015 Author Share Posted March 5, 2015 i just new in mac world , i download bootpack from http://www.osxlatitude.com/edp/compatibility/ i cant find file with name SLE Link to comment Share on other sites More sharing options...
okaenrique Posted March 5, 2015 Author Share Posted March 5, 2015 ok i chose wrong boot pack from here http://www.osxlatitude.com/edp/compatibility/ what i do now ? what i chose 10.10.1 Updates: AppleHDA for Exx20 Models or 10.10.2 Updates: Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 5, 2015 Moderators Share Posted March 5, 2015 which version of Yosemite are you running? You need this bootpack right above the updates. The bottom ones are just updates without the crucial files. If you have 10.10.2, then you still need the bootpack but update the files from 10.10.2 package Link to comment Share on other sites More sharing options...
okaenrique Posted March 5, 2015 Author Share Posted March 5, 2015 i have 10.10.2 Link to comment Share on other sites More sharing options...
okaenrique Posted March 5, 2015 Author Share Posted March 5, 2015 1-i install from /Extra/Extensions/SLE to /System/Library/Extensions but is the same problem 2- and restart pc the same ; 3- install 10.10.2 is just 3 file in this folder and no Extensions/SL. 4-restart pc and no sound and not good grafic . can u help me ? what i do now /////////////////////////////////////////////////////////////////////////7 should i use thes steps ???????? 1) Rename the DSDT specific to your model to DSDT.aml: E6220 HD3000 1366x768 = DSDT-E6220.aml E6320 HD3000 1366x768 = DSDT-E6320.aml E6420 HD3000 1366x768 = DSDT-E6420.aml E6420 HD3000 1600x900 = DSDT-E6420_2ch.aml E6520 HD3000 only = DSDT-E6420-2ch.aml E6420/E6520 Optimus Disabled = DSDT-NVS.aml ; uncheck Optimus in BIOS E6420/E6520 Optimus Enabled = DSDT-off.aml ; Check Optimus in BIOS, low Res 1366x768 and below E6420/E6520 Optimus Enabled = DSDT-off_2ch.aml ; Check Optimus in BIOS, higher Res 1600x900 and higher Note: HDMI output won't work on Optimus Enabled models. HDMI audio not working for NVS4200m, nor sleep! 2) For E6420/E6520 Optimus Enabled, add the following to o.c.b.p with textedit or use Chameleon Wizard to do it: <key>SkipNvidiaGfx</key> <string>Yes</string> 3) Generate your own SSDT and place it in /Extra: a ) make script executable by running command sudo chmod +x ssdtPRGen.sh b ) if running on the same system ssdtPRGen.sh -d 0 if running from another system ssdtPRGen.sh -d 0 -p <your cpu> ex. ssdtPRGen.sh -d 0 -p i7-4600U Note: cpu name is case sensitive, I7-4600u won’t work c ) script creates an SSDT.dsl to the Desktop. Open this file with Chameleon Wizard. This will compile this file into SSDT.aml 4) Once system is installed and running: a ) Install all kexts in /Extra/Extensions/SLE to S/L/E with kextwizard b ) rename nullCPUPowerManagement.kext to NullCPUPowermanagement.bak from /Extra/Extensions. Restore it before any OS update to prevent KP 5) Repair permission and rebuild cache. Run command from terminal. sudo touch /S*/L*/Extensions sudo kextcache -Boot -U / 6) Reboot Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 6, 2015 Moderators Share Posted March 6, 2015 Yes, follow the guide. In the bootpack, there are many DSDT. Select this and rename it to DSDT.aml DSDT-E6220.aml ​if you don't have a SSDT in /Extra. follow the instruction to generate one. Link to comment Share on other sites More sharing options...
okaenrique Posted March 6, 2015 Author Share Posted March 6, 2015 Yes, follow the guide. In the bootpack, there are many DSDT. Select this and rename it to DSDT.aml DSDT-E6220.aml ​if you don't have a SSDT in /Extra. follow the instruction to generate one. i have DSDT.aml ................. should i change it ?? i cant find name SSDT in extra Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 6, 2015 Moderators Share Posted March 6, 2015 Did you install this? 10.10.1 Updates: AppleHDA for Exx20 Models What layout-d is audio set in your DSDT? The patched AppleHDA from my guide is set to 12, 0C for hex. Link to comment Share on other sites More sharing options...
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