Jump to content

Dell Latitude e7240 no sleep and AUX not work

Recommended Posts


i have installed the OS but I can not close my notebook it run again and the AUX don't goes what can I do?

Share this post

Link to post
Share on other sites

@panner Try disabling "Runtime Power Management" in your BIOS if you have that option. This is a common issue and cannot be resolved unless you want to invest into some PS2/ACPI coding which i do not recommend.

You can always click the "apple" logo and click hibernate/sleep there.


As for your Audio, try downloading another VoodooHDA.kext, and install with kext wizard. If you have crackling sound after installing kext, perform the following edit to solve this;


-Right click VoodooHDA.kext and click "Show package content"

-Click contents and rightclick info.plist -> open with texteditor.

-Edit the following lines and save/reboot when you're done;



<string>???</string>   <--- replace ??? with build number e.g 292 (you can see your build number in the string above, it may vary)


<string>???</string>  <--- replace ??? with build number e.g 292


<true/> <--- Set this to false


<false/>  <--- Set this to true


<integer>90</integer>  <--- Set to 99
<integer>90</integer>   <--- Set to 0
<integer>90</integer> <--- Set to 100
<integer>90</integer>  <--- Set to 0


<true/>  <--- Set this to false


now reinstall your patched VoodooHDA with kext wizard and reboot again.

  • Like 1

Share this post

Link to post
Share on other sites

soory but i dont have die in my bios giv it a other efi?

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...