Dell Inspiron 5548 - help required

[mrdr]

thanks,

sound is working now, by modified the config.plist for the [disabled] value to [NO].

finally all working.

 

thank you all for the help, especially the following 2 people,

Jake Lo

 and 

Hervé

 

 

<string>Enable Realtek ALC255 #5</string>

<key>Disabled</key>

<true/>

<key>Find</key>

<data>gxnUEQ==</data>

<key>Name</key>

<string>AppleHDA</string>

<key>Replace</key>

<data>AAAAAA==</data>

[Jake Lo]

Right, you're on El Capitan. Sierra does not need that patch, therefore I disabled it.

[mrdr]

Hi,

I let the computer did the update, and now screen brightness is not working any more,

the screen brightness bar is there, but it make no different when I move it.

 

anyone else has the similar problem?

 

[Jake Lo]

10.12.4 breaks IntelBacklight and ACPIBacklight. Replace with the following;

Credits to Rehabman

• Replace DSDT.aml and Config.plist file
• Copy SSDT-PNLF.aml to /EFI/Clover/ACPI/Patched
• Remove IntelBacklight from /EFI/Clover/Kexts/Other
• Copy AppleBacklightInjector to /Library/Extension

Repair permission and rebuild cache

      sudo chmod -Rf 755 /L*/E*

      sudo chown -Rf 0:0 /L*/E*

      sudo touch -f /L*/E*

      sudo chmod -Rf 755 /S*/L*/E*

      sudo chown -Rf 0:0 /S*/L*/E*

      sudo touch -f /S*/L*/E*

      sudo kextcache -Boot -U /

5548_Fix-Brightness.zip

[mrdr]

awesome, your solution worked perfectly.